Implement custom shell command tests and pipeline stages #125
Conversation
WalkthroughThis update introduces a new custom Changes
Sequence Diagram(s)sequenceDiagram
participant Make as Makefile
participant Tester as Test Suite
participant Grep as Custom Grep Executable
participant SystemGrep as System Grep
participant Shell as Shell Executable
%% Build and Test Grep Executable
Make->Grep: Build custom grep for all OS/arch
Make->Tester: Run grep test suite
Tester->Grep: Execute grep with stdin and pattern
Grep-->>Tester: Return stdout, stderr, exit code
%% Run Pipeline Stage Tests
Make->Shell: Build shell and custom commands
Make->Tester: Run pipeline stage tests (testP1, testP2, testP3)
Tester->Shell: Execute shell commands with pipelines (cat, head, tail, wc, grep)
Shell-->>Tester: Return outputs for assertions
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Actionable comments posted: 3
🧹 Nitpick comments (2)
Makefile (1)
212-214: Test target for pipeline stages added correctly.The new
test_pipeline_w_bashtarget properly runs the pipeline tests in a bash environment, following the same pattern as other test targets.Consider also updating the main
test_bashtarget to include the new pipeline tests for completeness.test_bash: make test_base_w_bash make test_nav_w_bash make test_quoting_w_bash make test_redirections_w_bash make test_completions_w_bash + make test_pipeline_w_bashinternal/stage_p2.go (1)
30-31: Consider adding test documentationThe test inputs and expected outputs are defined clearly, but consider adding comments explaining the purpose of each test case to improve maintainability.
- inputs := []string{`yes | head -n 1`, `yes | head -n 10000 | wc`} - expectedOutputs := []string{"y", fmt.Sprintf("%7d%8d%8d", 10000, 10000, 20000)} + // Test cases for pipeline command functionality + inputs := []string{ + `yes | head -n 1`, // Basic pipeline test - limit yes output to single line + `yes | head -n 10000 | wc` // Multi-stage pipeline test with larger output + } + expectedOutputs := []string{ + "y", + fmt.Sprintf("%7d%8d%8d", 10000, 10000, 20000) // Format: lines, words, bytes + }
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📒 Files selected for processing (7)
Makefile(3 hunks)internal/stage_p1.go(1 hunks)internal/stage_p2.go(1 hunks)internal/stage_p3.go(1 hunks)internal/tester_definition.go(1 hunks)internal/utils.go(1 hunks)internal/utils_build.go(1 hunks)
🧰 Additional context used
🧬 Code Graph Analysis (2)
internal/stage_p1.go (4)
internal/utils_build.go (2)
SetUpCustomCommands(27-68)CommandDetails(16-25)internal/utils.go (2)
CUSTOM_CAT_COMMAND(14-14)CUSTOM_WC_COMMAND(18-18)internal/utils_fs.go (1)
GetShortRandomDirectory(53-79)internal/test_cases/command_response_test_case.go (1)
CommandResponseTestCase(18-30)
internal/stage_p2.go (5)
internal/shell_executable/shell_executable.go (1)
NewShellExecutable(42-55)internal/utils_build.go (2)
SetUpCustomCommands(27-68)CommandDetails(16-25)internal/utils.go (3)
CUSTOM_HEAD_COMMAND(15-15)CUSTOM_WC_COMMAND(18-18)CUSTOM_YES_COMMAND(19-19)internal/logged_shell_asserter/logged_shell_asserter.go (1)
NewLoggedShellAsserter(25-37)internal/test_cases/command_response_test_case.go (1)
CommandResponseTestCase(18-30)
🔇 Additional comments (11)
internal/utils.go (1)
15-19: New command constants added correctly.The new constants for head, tail, wc, and yes commands follow the existing naming convention and support the newly added pipeline tests.
internal/utils_build.go (1)
23-23: Comment updated to include new commands.The comment has been appropriately updated to include the new custom commands (Head, Tail, Wc, Yes) that don't require metadata, which aligns with the constants added in utils.go.
internal/tester_definition.go (1)
153-167:✅ Verification successful
Test cases for pipeline stages added correctly.
The three new test cases for pipeline stages (p1, p2, p3) are correctly added to the test definition with the standard 15-second timeout, matching the pattern of existing test cases.
However, I'm not seeing the implementation files for
testP1,testP2, andtestP3functions in the PR. Ensure that these functions are properly implemented in their respective files (likely stage_p1.go, stage_p2.go, and stage_p3.go).
🏁 Script executed:
#!/bin/bash # Verify that the pipeline test implementation files exist echo "Checking for pipeline stage implementation files..." ls -la internal/stage_p*.go 2>/dev/null || echo "Pipeline stage implementation files not found!"Length of output: 394
Implementation files for pipeline test functions present
The implementation files
internal/stage_p1.go,internal/stage_p2.go, andinternal/stage_p3.goare present and provide the definitions fortestP1,testP2, andtestP3. All new test cases have corresponding implementations and match the existing patterns. Ready to merge.Makefile (2)
148-154: Pipeline stages definition added correctly.The new
_PIPELINE_STAGESdefinition correctly defines three pipeline-related stages with appropriate slugs matching the test cases added in tester_definition.go.
180-180: Pipeline stages variable processed correctly.The
PIPELINE_STAGESvariable is appropriately initialized using the quote_strings helper function, consistent with how other stage variables are processed.internal/stage_p2.go (1)
33-43: LGTM: Test case implementation is clean and handles errors wellThe loop implementation for running test cases is well-structured with proper error handling.
internal/stage_p3.go (3)
48-55: Test case implementation is robust with multiline assertionUsing
MultiLineAssertionfor validating the output is appropriate for this test case, as it handles line-by-line comparison of the output.
42-43:✅ Verification successful
Consider potential timing issues with
tail -fThe command
tail -fis designed to continuously monitor a file and output new lines as they appear. This could potentially cause the test to hang or behave unpredictably if not handled properly.
🏁 Script executed:
#!/bin/bash # Check how tail -f is handled - looking for potential timeout or process termination mechanisms grep -n "tail -f" internal/ grep -n "MultilineResponseTestCase" internal/test_cases/Length of output: 161
No hang:
head -n 5cleanly terminates the pipelineThe test uses:
tail -f <filePath> | head -n 5Once
headreads five lines it exits, sending SIGPIPE totail, which then also terminates. No additional timeout or process‐killing logic is required.
19-22:❓ Verification inconclusive
Verify that custom command setup works for head and tail
Similar to
stage_p2.go, ensure that theSetUpCustomCommandsfunction properly supports the "head" and "tail" command types.
🏁 Script executed:
#!/bin/bash # Check if the command constants are properly defined grep -n "CUSTOM_.*_COMMAND" internal/utils.goLength of output: 263
#!/bin/bash # Locate and display the implementation of SetUpCustomCommands to verify handling of CommandType values set -e # Find the file containing the function definition file=$(rg -l "func SetUpCustomCommands" -n internal | head -1) echo "==> Found in: $file" echo "=========================================" # Print the function implementation (first 200 lines for context) sed -n '1,200p' "$file"
#!/bin/bash set -e # Locate the file containing SetUpCustomCommands file=$(rg -l "func SetUpCustomCommands" -n internal | head -1) echo "==> Implementation found in: $file" echo "============================================================" # Print the function implementation (first 200 lines for context) sed -n '1,200p' "$file" echo echo "=== Checking for explicit handling of \"head\" and \"tail\" ===" grep -R -n "case \"head\"" -n "$file" || echo "No explicit \"head\" case found" grep -R -n "case \"tail\"" -n "$file" || echo "No explicit \"tail\" case found"
#!/bin/bash set -e # Locate the file containing SetUpCustomCommands file=$(rg -l --glob 'internal/**/*.go' 'func SetUpCustomCommands' | head -1) echo "==> Implementation found in: $file" echo "--------------------------------------------------" # Show the implementation (first 200 lines for context) sed -n '1,200p' "$file" echo echo "==> Checking for explicit handling of \"head\" and \"tail\" in switch/case:" rg -n 'case\s*"(head|tail)"' "$file" || echo "No explicit case for head or tail found"
#!/bin/bash set -e # Locate the SetUpCustomCommands function definition file=$(grep -R -n "func SetUpCustomCommands" internal | head -1 | cut -d: -f1) echo "==> Definition found in: $file" echo "--------------------------------------------------" # Display the first 200 lines of the file for context sed -n '1,200p' "$file" echo echo "==> Verifying explicit handling of \"head\" and \"tail\":" grep -nE 'case\s*"(head|tail)"' "$file" || echo "No explicit case for head or tail found"
#!/bin/bash set -e # Locate the implementation of SetUpCustomCommands file=$(rg -l "func SetUpCustomCommands" --glob "internal/**/*.go" | head -n1) echo "==> Implementation found in: $file" echo "--------------------------------------------------" # Display the function body awk '/func SetUpCustomCommands/,/^\}/' "$file" echo echo "==> Checking for explicit handling of \"head\" and \"tail\":" grep -nE 'case\s*"(head|tail)"' "$file" || echo "No explicit case for \"head\" or \"tail\" found"
Verify custom command support for “head” and “tail” in SetUpCustomCommands
Please confirm that the
SetUpCustomCommandsimplementation explicitly handles the"head"and"tail"command types—similar to how it handles other commands—so that invoking:SetUpCustomCommands(stageHarness, shell, []CommandDetails{ {CommandType: "head", CommandName: CUSTOM_HEAD_COMMAND, CommandMetadata: ""}, {CommandType: "tail", CommandName: CUSTOM_TAIL_COMMAND, CommandMetadata: ""}, }, false)actually wires up the custom head/tail binaries. In particular, check:
- The source file defining
func SetUpCustomCommands(e.g. underinternal/…) contains acase "head"andcase "tail"(or equivalent mapping).- It uses the constants from
internal/utils.go(lines 15–17) for dispatch.internal/stage_p1.go (2)
52-56: LGTM: Test case implementation is cleanThe test case structure is well-defined with appropriate fields for command, expected output, and success message.
37-39:❓ Verification inconclusive
Verify that the word count logic matches wc implementation
The manual calculation of lines, words, and bytes might not exactly match what the
wccommand outputs depending on how it handles newlines and whitespace. Consider validating this logic or documenting the expected differences.
🏁 Script executed:
#!/bin/bash # Check if there are any tests specifically for the wc command implementation grep -n "wc" internal/custom_executable/Length of output: 90
Verify word‑count logic and add tests
I didn’t find any existing tests that compare your manual line/word/byte counts against the standardwcbehavior. Please ensure the implementation in:
- File: internal/stage_p1.go
Lines 37–39lines := strings.Count(fileContent, "\n") words := strings.Count(strings.ReplaceAll(fileContent, "\n", " "), " ") + 1 bytes := len(fileContent)matches the output of
wc -l,wc -w, andwc -c(especially around trailing newlines and multiple whitespace).
• Add tests that feed representative inputs into this function and assert equality withwc.
• If there are known, intentional differences fromwc, document them clearly.
…d add new slugs for stages
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📒 Files selected for processing (1)
internal/test_helpers/course_definition.yml(6 hunks)
🧰 Additional context used
🪛 YAMLlint (1.35.1)
internal/test_helpers/course_definition.yml
[error] 941-941: no new line character at the end of file
(new-line-at-end-of-file)
🔇 Additional comments (6)
internal/test_helpers/course_definition.yml (6)
558-558: Remove trailing spaces in single-quotedcatexample
The trailing spaces after the file paths in this code block were cleaned up, which improves consistency and prevents accidental formatting in the rendered markdown.
599-599: Remove trailing spaces in double-quotedcatexample
Consistently removing trailing whitespace from the code block keeps the examples tidy and avoids unintended line breaks.
640-640: Remove trailing spaces in backslash-escapedcatexample
Trailing whitespace was removed to keep the code snippet clean and uniform across all quoting examples.
681-681: Remove trailing spaces in single-quote/backslashcatexample
Cleaning up trailing spaces in this snippet ensures consistency with the other quoting examples.
722-722: Remove trailing spaces in mixed-quotecatexample
The example demonstrating backslashes within double-quoted segments has had its trailing whitespace removed for consistency.
939-941: Add new pipeline stage slugs
The slugsp1,p2, andp3have been appended to thestageslist to reflect the newly implementedtestP1,testP2, andtestP3stages. Please verify that these slugs are correctly registered in the tester definitions (internal/tester_definition.go) and that the Makefile targettest_pipeline_w_bashinvokes them as intended.🧰 Tools
🪛 YAMLlint (1.35.1)
[error] 941-941: no new line character at the end of file
(new-line-at-end-of-file)
…ion and add prompt assertion flag
needs to be discussed.
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Actionable comments posted: 7
🧹 Nitpick comments (6)
internal/stage_p5.go (1)
26-34: Minor shell pipeline sanity checkThe command under test is
ls | type exit, but only the second part produces output.
If the goal is to validate pipe handling, consider asserting on stdout of both sides (e.g. check that no unexpectedlslisting sneaks through).internal/stage_p3.go (1)
48-50: Redundant second write to the same fileImmediately after computing
expectedOutputthe code rewrites the identicalfileContentto disk:if err := writeFiles([]string{filePath}, []string{fileContent}, logger); err != nil { ... }This second write is unnecessary and can be removed to save I/O and log noise.
internal/stage_p6.go (1)
45-46: Consider improving word count calculation to handle more complex content.The current word counting logic assumes each word is separated by a single space after replacing newlines. This might not accurately count words if the random words themselves contain spaces.
-words := strings.Count(strings.ReplaceAll(fileContent, "\n", " "), " ") + 1 +// Split by whitespace to count words more accurately +words := len(strings.Fields(strings.ReplaceAll(fileContent, "\n", " ")))internal/test_cases/command_with_multiline_response_test_case.go (3)
22-23: Fix comment-field name mismatch.The field comment uses
SkipAssertPromptwhile the actual field is namedSkipPromptAssertion.-// SkipAssertPrompt is a flag to indicate that the prompt should not be asserted +// SkipPromptAssertion is a flag to indicate that the prompt should not be asserted
38-46: Simplify error handling logic.The conditional structure has duplicate error handling logic that can be simplified.
-if !t.SkipPromptAssertion { - if err := asserter.AssertWithPrompt(); err != nil { - return err - } -} else { - if err := asserter.AssertWithoutPrompt(); err != nil { - return err - } -} +var err error +if !t.SkipPromptAssertion { + err = asserter.AssertWithPrompt() +} else { + err = asserter.AssertWithoutPrompt() +} +if err != nil { + return err +}
22-24: Improve documentation for the new field.The current field comment doesn't explain when you would use this flag or the implications of skipping prompt assertion.
-// SkipAssertPrompt is a flag to indicate that the prompt should not be asserted +// SkipPromptAssertion controls whether to expect a shell prompt after command execution. +// Set to true when testing commands with continuous output or when the command doesn't return +// to a prompt state (e.g., long-running processes, interactive commands).
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📒 Files selected for processing (7)
internal/assertions/single_line_assertion.go(1 hunks)internal/stage_p3.go(1 hunks)internal/stage_p4.go(1 hunks)internal/stage_p5.go(1 hunks)internal/stage_p6.go(1 hunks)internal/test_cases/command_with_multiline_response_test_case.go(2 hunks)internal/utils_fs.go(1 hunks)
🧰 Additional context used
🧬 Code Graph Analysis (2)
internal/stage_p6.go (6)
internal/shell_executable/shell_executable.go (1)
NewShellExecutable(42-55)internal/utils_build.go (2)
SetUpCustomCommands(27-68)CommandDetails(16-25)internal/utils.go (3)
CUSTOM_CAT_COMMAND(14-14)CUSTOM_HEAD_COMMAND(15-15)CUSTOM_WC_COMMAND(18-18)internal/logged_shell_asserter/logged_shell_asserter.go (1)
NewLoggedShellAsserter(25-37)internal/utils_fs.go (1)
GetShortRandomDirectory(53-79)internal/test_cases/command_response_test_case.go (1)
CommandResponseTestCase(18-30)
internal/stage_p4.go (5)
internal/shell_executable/shell_executable.go (1)
NewShellExecutable(42-55)internal/utils_build.go (2)
SetUpCustomCommands(27-68)CommandDetails(16-25)internal/utils.go (1)
CUSTOM_WC_COMMAND(18-18)internal/logged_shell_asserter/logged_shell_asserter.go (1)
NewLoggedShellAsserter(25-37)internal/test_cases/command_response_test_case.go (1)
CommandResponseTestCase(18-30)
🪛 golangci-lint (1.64.8)
internal/stage_p6.go
15-15: func testP6 is unused
(unused)
internal/stage_p5.go
10-10: func testP5 is unused
(unused)
internal/stage_p4.go
14-14: func testP4 is unused
(unused)
🪛 GitHub Check: lint
internal/stage_p6.go
[failure] 15-15:
func testP6 is unused (U1000)
internal/stage_p5.go
[failure] 10-10:
func testP5 is unused (U1000)
internal/stage_p4.go
[failure] 14-14:
func testP4 is unused (U1000)
⏰ Context from checks skipped due to timeout of 90000ms (1)
- GitHub Check: test-flakiness
🔇 Additional comments (1)
internal/stage_p3.go (1)
63-66: Consider usingappendFilesynchronously afterfile.SyncIf you incorporate the earlier
file.Sync()change, the appended line will be visible totail -fimmediately, reducing flakiness in fast CI environments.
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Actionable comments posted: 5
♻️ Duplicate comments (2)
internal/stage_p2.go (1)
17-22: 💡 Verification agent🧩 Analysis chain
Verify the command type handling in SetUpCustomCommands
The code correctly sets up a custom
wccommand, but based on past review comments, theSetUpCustomCommandsfunction may not properly handle the "wc" command type yet.
🏁 Script executed:
#!/bin/bash # Check if SetUpCustomCommands handles the "wc" command type grep -n "case \"wc\":" internal/utils_build.goLength of output: 46
Let’s locate the
SetUpCustomCommandsimplementation to inspect its command‐type handling:
🏁 Script executed:
#!/bin/bash # Find where SetUpCustomCommands is defined grep -R -n "func SetUpCustomCommands" .Length of output: 256
To verify if
"wc"is handled, let’s dump the body ofSetUpCustomCommandsfor inspection:
🏁 Script executed:
#!/bin/bash # Print lines 27–200 of internal/utils_build.go to view the entire SetUpCustomCommands implementation sed -n '27,200p' internal/utils_build.goLength of output: 1501
Add missing “wc” handling in SetUpCustomCommands
The loop in internal/utils_build.go only handles
"ls","cat", and"signature_printer", so your customwccommand is never created. Please add acase "wc":block analogous to the others:• File: internal/utils_build.go
• Function: SetUpCustomCommands (lines ~33–47)Suggested diff:
for _, commandDetail := range commands { switch commandDetail.CommandType { case "ls": customLsPath := path.Join(executableDir, commandDetail.CommandName) err = custom_executable.CreateLsExecutable(customLsPath) if err != nil { return "", err } case "cat": customCatPath := path.Join(executableDir, commandDetail.CommandName) err = custom_executable.CreateCatExecutable(customCatPath) if err != nil { return "", err } case "signature_printer": // …existing code… + case "wc": + customWcPath := path.Join(executableDir, commandDetail.CommandName) + err = custom_executable.CreateWcExecutable(customWcPath) + if err != nil { + return "", err + } } }Ensure you have a
CreateWcExecutablehelper in custom_executable and add tests to cover the new command type.internal/stage_p1.go (1)
49-50:⚠️ Potential issueUpdate wc output format to match implementation
The format string for wc output doesn't match the implementation. According to past review comments, all fields should use
%8d.-expectedOutput := fmt.Sprintf("%7d%8d%8d", lines, words, bytes) +expectedOutput := fmt.Sprintf("%8d%8d%8d", lines, words, bytes)
🧹 Nitpick comments (6)
internal/custom_executable/grep/grep_test.go (4)
48-94: Consider separating build logic from test executionThe current implementation builds the custom grep executable inside the test runner function. This could potentially slow down tests if
runGrepis called multiple times, as it would attempt to build the executable each time.Consider moving the build step to a separate function that's called once in a
TestMainor using a sync.Once mechanism to ensure it only builds once:var buildOnce sync.Once func ensureGrepBuilt(t *testing.T) { if *useSystemGrep { return } buildOnce.Do(func() { buildCmd := exec.Command("go", "build", "-o", "grep", ".") buildOutput, err := buildCmd.CombinedOutput() if err != nil { t.Fatalf("Failed to build grep executable for testing: %v\nOutput:\n%s", err, string(buildOutput)) } }) // Keep cleanup in the test that requested the build t.Cleanup(func() { os.Remove("./grep") }) }🧰 Tools
🪛 GitHub Check: lint
[failure] 87-87:
empty branch (SA9003)
149-157: Consider additional test cases for grep functionalityThe current test suite covers basic grep functionality, but could be expanded to test other common grep use cases.
Consider adding tests for:
- Case-insensitive matching with -i flag
- Regular expression patterns (if supported)
- Multiple occurrences in the same line
- Special characters in patterns (e.g.,
.,*,[])
163-168: Improve test skipping with t.Skip()The current approach to skipping the "Usage error" test when using system grep simply returns from the test function, which doesn't provide clear indication in test output that a test was skipped.
if *useSystemGrep && tt.name == "Usage error - no pattern" { - return // Skip this test for System grep + t.Skip("Skipping 'Usage error' test when using system grep") }
203-209: Plan for file-based grep testing implementationThe TODOs for file-based testing are a good reminder for future work, but could be more specific.
The placeholders for file-based testing indicate an important future enhancement. Consider implementing these tests soon for comprehensive coverage of the grep functionality. Would you like me to help draft a more detailed plan or implementation for the file-based testing functionality?
internal/test_helpers/course_definition.yml (2)
939-944: Add newline at end of fileYAML files should end with a newline character as per POSIX standards. This is flagged by the YAMLlint static analysis tool.
- slug: "xk3" +🧰 Tools
🪛 YAMLlint (1.35.1)
[error] 944-944: no new line character at the end of file
(new-line-at-end-of-file)
939-944: Document the purpose of new stage slugsConsider adding comments to explain what each new stage slug represents. This would improve maintainability and make it easier for other developers to understand the purpose of each stage.
- slug: "br6" # Pipeline test 1: cat|wc and tail|head - slug: "p2" # Pipeline test 2: echo|wc and ls|type - slug: "p3" # Pipeline test 3: [description] - slug: "ny9" # [description] - slug: "p5" # [description] - slug: "xk3" # [description]🧰 Tools
🪛 YAMLlint (1.35.1)
[error] 944-944: no new line character at the end of file
(new-line-at-end-of-file)
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📒 Files selected for processing (8)
Makefile(6 hunks)internal/custom_executable/grep/grep.go(1 hunks)internal/custom_executable/grep/grep_test.go(1 hunks)internal/stage_p1.go(1 hunks)internal/stage_p2.go(1 hunks)internal/stage_p3.go(1 hunks)internal/test_helpers/course_definition.yml(6 hunks)internal/tester_definition.go(1 hunks)
✅ Files skipped from review due to trivial changes (1)
- internal/custom_executable/grep/grep.go
🚧 Files skipped from review as they are similar to previous changes (3)
- internal/stage_p3.go
- internal/tester_definition.go
- Makefile
🧰 Additional context used
🧬 Code Graph Analysis (1)
internal/stage_p2.go (5)
internal/shell_executable/shell_executable.go (1)
NewShellExecutable(42-55)internal/utils_build.go (2)
SetUpCustomCommands(27-68)CommandDetails(16-25)internal/utils.go (1)
CUSTOM_WC_COMMAND(18-18)internal/logged_shell_asserter/logged_shell_asserter.go (1)
NewLoggedShellAsserter(25-37)internal/test_cases/command_response_test_case.go (1)
CommandResponseTestCase(18-30)
🪛 GitHub Check: lint
internal/custom_executable/grep/grep_test.go
[failure] 87-87:
empty branch (SA9003)
🪛 YAMLlint (1.35.1)
internal/test_helpers/course_definition.yml
[error] 944-944: no new line character at the end of file
(new-line-at-end-of-file)
🔇 Additional comments (5)
internal/custom_executable/grep/grep_test.go (2)
22-46: Ensure consistent handling for all supported platformsThe
getGrepExecutablefunction handles darwin and linux for arm64 and amd64, but doesn't specifically handle other potential platforms.The implementation correctly handles the common platforms and fails appropriately for unsupported ones. The code is well-structured and clear in its intent.
106-201: Thorough stdin testing implementationThe tests for stdin functionality cover the main use cases well and effectively verify both successful and error scenarios.
The test structure with table-driven tests is well-organized and follows Go testing best practices. The comprehensive verification of exit codes, stdout, and stderr ensures proper functionality validation.
internal/stage_p2.go (2)
39-47: LGTM! Good use of the CommandResponseTestCase structureThe test case is well structured and properly asserts the expected output.
51-62: Comprehensive pipeline test with builtin commandThis is a good test case that checks both pipeline functionality and the ability to identify shell builtins inside a pipeline.
internal/stage_p1.go (1)
95-123: Well-implemented interactive file modification testThis is a great test case that verifies dynamic content updates using tail and appending to files during test execution. The assertions are properly set up to verify the content appears without prompt.
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Actionable comments posted: 1
🧹 Nitpick comments (5)
internal/test_helpers/course_definition.yml (1)
941-941: Add a newline at end of fileThe YAML file is missing a newline at the end, which is a POSIX standard requirement and could cause parsing issues.
- - slug: "xk3" + - slug: "xk3" +🧰 Tools
🪛 YAMLlint (1.35.1)
[error] 941-941: no new line character at the end of file
(new-line-at-end-of-file)
internal/stages_test.go (1)
115-121: Ensure ASH pipeline fixture alignment with BASH counterpartThe new ASH pipeline test case uses the same stage slugs as the BASH test case. Make sure both fixtures have consistent expectations and account for any shell-specific differences.
internal/test_helpers/fixtures/ash/pipelines/pass (3)
1-2: Consider making debug mode conditionalDebug mode is permanently enabled. Consider making it conditional based on an environment variable to avoid verbose output in normal runs.
-Debug = true +Debug = ${DEBUG:-false}🧰 Tools
🪛 GitHub Actions: Test
[error] 1-1: Test failure in 'TestStages/pipelines_pass_bash' causing 'TestStages' to fail. Differences detected in output compared to expected results.
11-11: Remove duplicated file setupThe same setup command is executed twice in a row, which is unnecessary.
[33m[stage-3] [setup] [0m[94mecho -n "orange blueberry\nstrawberry pineapple\nbanana mango" > "/tmp/baz/file-3"[0m -[33m[stage-3] [setup] [0m[94mecho -n "orange blueberry\nstrawberry pineapple\nbanana mango" > "/tmp/baz/file-3"[0m
52-53: Add newline at end of fileThis file is missing a newline at the end.
[33m[stage-1] [0m[92mTest passed.[0m +
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.gitignore(1 hunks)internal/stage_p2.go(1 hunks)internal/stages_test.go(2 hunks)internal/test_helpers/course_definition.yml(6 hunks)internal/test_helpers/fixtures/ash/pipelines/pass(1 hunks)internal/test_helpers/fixtures/bash/pipelines/pass(1 hunks)
✅ Files skipped from review due to trivial changes (1)
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🚧 Files skipped from review as they are similar to previous changes (2)
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- internal/stage_p2.go
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internal/stages_test.go
[error] 1-1: Test failure in 'TestStages/pipelines_pass_bash' causing 'TestStages' to fail. Differences detected in output compared to expected results.
internal/test_helpers/fixtures/ash/pipelines/pass
[error] 1-1: Test failure in 'TestStages/pipelines_pass_bash' causing 'TestStages' to fail. Differences detected in output compared to expected results.
internal/test_helpers/course_definition.yml
[error] 1-1: Test failure in 'TestStages/pipelines_pass_bash' causing 'TestStages' to fail. Differences detected in output compared to expected results.
🪛 YAMLlint (1.35.1)
internal/test_helpers/course_definition.yml
[error] 941-941: no new line character at the end of file
(new-line-at-end-of-file)
🔇 Additional comments (1)
internal/test_helpers/fixtures/ash/pipelines/pass (1)
12-20:❌ Incorrect review comment
Missing line append test verification
The test shows output for appended lines 4 and 5, but there's no setup command showing when these lines are appended. The verification is present, but the operation that adds the lines is missing.
🏁 Script executed:
#!/bin/bash # Check if there's a corresponding test_helpers file that might have the missing append operations # Look for the test implementation that corresponds to stage br6 echo "Looking for Stage br6 implementation..." rg -l "br6" --type go internal/ rg -A 10 "appendFile" --type go internal/Length of output: 1838
No missing append operations—test harness appends lines in stage_p1.go
The appendFile calls in internal/stage_p1.go already simulate adding lines 4 and 5, so the original concern about missing setup is unfounded.
• internal/stage_p1.go:
- appendFile(filePath, "This is line 4.\n")
- appendFile(filePath, "This is line 5.\n")
Please ignore the original comment.
Likely an incorrect or invalid review comment.
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🧹 Nitpick comments (1)
internal/utils_build.go (1)
52-96: Consider refactoring the repeated pattern in the switch cases.The implementation is correct and follows a consistent pattern across all command types. However, there's significant code duplication that could be refactored to improve maintainability.
func SetUpCustomCommands(stageHarness *test_case_harness.TestCaseHarness, shell *shell_executable.ShellExecutable, commands []CommandDetails, useShorterDirectory bool) (string, error) { // ... existing code ... for _, commandDetail := range commands { - switch commandDetail.CommandType { - case "cat": - customCatPath := path.Join(executableDir, commandDetail.CommandName) - err = custom_executable.CreateCatExecutable(customCatPath) - if err != nil { - return "", err - } - case "grep": - customGrepPath := path.Join(executableDir, commandDetail.CommandName) - err = custom_executable.CreateGrepExecutable(customGrepPath) - if err != nil { - return "", err - } - case "head": - customHeadPath := path.Join(executableDir, commandDetail.CommandName) - err = custom_executable.CreateHeadExecutable(customHeadPath) - if err != nil { - return "", err - } - case "ls": - customLsPath := path.Join(executableDir, commandDetail.CommandName) - err = custom_executable.CreateLsExecutable(customLsPath) - if err != nil { - return "", err - } - case "tail": - customTailPath := path.Join(executableDir, commandDetail.CommandName) - err = custom_executable.CreateTailExecutable(customTailPath) - if err != nil { - return "", err - } - case "wc": - customWcPath := path.Join(executableDir, commandDetail.CommandName) - err = custom_executable.CreateWcExecutable(customWcPath) - if err != nil { - return "", err - } - case "yes": - customYesPath := path.Join(executableDir, commandDetail.CommandName) - err = custom_executable.CreateYesExecutable(customYesPath) - if err != nil { - return "", err - } + executablePath := path.Join(executableDir, commandDetail.CommandName) + switch commandDetail.CommandType { + case "cat": + err = custom_executable.CreateCatExecutable(executablePath) + case "grep": + err = custom_executable.CreateGrepExecutable(executablePath) + case "head": + err = custom_executable.CreateHeadExecutable(executablePath) + case "ls": + err = custom_executable.CreateLsExecutable(executablePath) + case "tail": + err = custom_executable.CreateTailExecutable(executablePath) + case "wc": + err = custom_executable.CreateWcExecutable(executablePath) + case "yes": + err = custom_executable.CreateYesExecutable(executablePath) case "signature_printer": - customSignaturePrinterPath := path.Join(executableDir, commandDetail.CommandName) - err = custom_executable.CreateSignaturePrinterExecutable(commandDetail.CommandMetadata, customSignaturePrinterPath) - if err != nil { - return "", err - } + err = custom_executable.CreateSignaturePrinterExecutable(commandDetail.CommandMetadata, executablePath) default: panic(fmt.Sprintf("CodeCrafters Internal Error: unknown command type %s", commandDetail.CommandType)) } + if err != nil { + return "", err + } }
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internal/utils_build.go (7)
internal/custom_executable/build/cat.go (1)
CreateCatExecutable(5-12)internal/custom_executable/build/grep.go (1)
CreateGrepExecutable(5-11)internal/custom_executable/build/head.go (1)
CreateHeadExecutable(5-11)internal/custom_executable/build/ls.go (1)
CreateLsExecutable(5-11)internal/custom_executable/build/tail.go (1)
CreateTailExecutable(5-11)internal/custom_executable/build/wc.go (1)
CreateWcExecutable(5-11)internal/custom_executable/build/yes.go (1)
CreateYesExecutable(5-11)
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🔇 Additional comments (4)
internal/utils_build.go (4)
4-4: Good addition of the "fmt" import.This import is appropriately added to support the formatted panic message in the new default case.
24-24: Properly updated metadata comment.The comment has been correctly updated to reflect all the command types that require no metadata.
46-51: Consolidation of the "cat" case is good.The implementation follows the established pattern and makes consistent use of the error handling pattern.
94-95: Good defensive programming with panic for unknown command types.Using panic for internal development errors is appropriate here, as this is a development-time check that should never happen in production. The error message clearly indicates that this is an internal error.
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♻️ Duplicate comments (1)
internal/custom_executable/grep/grep_test.go (1)
66-72:⚠️ Potential issueMissing handling for non-exit errors
The
runGrepfunction correctly extracts the exit code forExitErrortypes but doesn't handle other types of errors that might occur during command execution. This was previously flagged in static analysis and addressed in an earlier commit, but appears to be missing in this version.if err != nil { var exitError *exec.ExitError if errors.As(err, &exitError) { exitCode = exitError.ExitCode() } else { + // If it's not an ExitError, it might be a different execution problem (e.g., command not found) + t.Logf("Non-exit error occurred: %v", err) } }
🧹 Nitpick comments (5)
internal/custom_executable/grep/grep_test.go (5)
48-75: Consider adding error detail for debuggingThe
runGrepfunction returns the error, but it would be helpful to provide more context about what command was executed when an error occurs. This helps with debugging test failures.func runGrep(t *testing.T, stdinContent string, args ...string) (string, string, int, error) { executable := getGrepExecutable(t) t.Helper() prettyPrintCommand(args) cmd := exec.Command(executable, args...) if stdinContent != "" { cmd.Stdin = strings.NewReader(stdinContent) } var stdout, stderr bytes.Buffer cmd.Stdout = &stdout cmd.Stderr = &stderr err := cmd.Run() exitCode := 0 if err != nil { var exitError *exec.ExitError if errors.As(err, &exitError) { exitCode = exitError.ExitCode() } else { + // Wrap non-exit errors with command context + err = fmt.Errorf("executing grep %s: %w", strings.Join(args, " "), err) + t.Logf("Non-exit error occurred: %v", err) } } return stdout.String(), stderr.String(), exitCode, err }
77-85: Implement or remove the placeholder commentThere's a comment about potentially shortening paths or quoting arguments, but no implementation. Either implement this functionality or remove the comment to avoid confusion.
func prettyPrintCommand(args []string) { // Basic pretty printing, similar to cat/wc tests displayArgs := make([]string, len(args)) copy(displayArgs, args) - // Potentially shorten paths or quote arguments if needed here out := fmt.Sprintf("=== RUN: > grep %s", strings.Join(displayArgs, " ")) fmt.Println(out) }
121-129: Clarify expectation for empty pattern behaviorThe comment mentions that "Real grep might error or behave differently with empty pattern" but doesn't specify what the expected behavior is for your custom implementation. This would be helpful for understanding the test case.
{ name: "Match on empty string pattern", pattern: "", // Our simple strings.Contains matches everything input: "line1\nline2", expectedOut: "line1\nline2\n", expectedErr: "", expectedExit: 0, - // Note: Real grep might error or behave differently with empty pattern + // Note: BSD grep treats empty pattern as match nothing, GNU grep treats it as error. + // Our implementation matches every line with an empty pattern. },
144-149: Improve handling of "Usage error - no pattern" testThe handling of the "Usage error - no pattern" test case is a bit confusing. You skip it for system grep but keep the pattern empty for custom grep. Consider refactoring for clarity.
if *useSystemGrep && tt.name == "Usage error - no pattern" { + t.Skip("Skipping usage error test for system grep - behavior differs") - return // Skip this test for System grep } -if tt.name != "Usage error - no pattern" { + +// Only add pattern to args if this isn't the usage error test +if tt.pattern != "" || tt.name != "Usage error - no pattern" { args = append(args, tt.pattern) -} // else args remains empty }
170-179: Simplify error handling logicThe error handling logic is a bit complex. You can simplify it by focusing on the specific error conditions you're trying to check.
-// Handle expected usage error specifically -if tt.expectedExit == 2 && runErr == nil { - t.Errorf("Expected a non-nil error for usage error case, but got nil") -} else if tt.expectedExit != 2 && runErr != nil { - // If we didn't expect an error exit, but got one, check if it was *exec.ExitError - if _, ok := runErr.(*exec.ExitError); !ok { - // It was some other error during execution - t.Errorf("Command execution failed unexpectedly: %v", runErr) - } - // If it *was* an ExitError, we already checked the exit code above. +// Check error expectations +switch { +case tt.expectedExit != 0 && runErr == nil: + t.Errorf("Expected an error for exit code %d, but got nil", tt.expectedExit) +case tt.expectedExit == 0 && runErr != nil: + t.Errorf("Expected success (exit 0), but got error: %v", runErr) +case runErr != nil && !errors.As(runErr, &exec.ExitError{}): + // Got an error that's not an ExitError + t.Errorf("Command execution failed with unexpected error type: %T: %v", runErr, runErr) }
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🔇 Additional comments (3)
internal/custom_executable/grep/grep_test.go (3)
16-20: Good use of flags and documentationThe
-systemflag is well-documented with clear usage instructions and explanation about BSD vs GNU grep differences. This makes the test easier to run and understand.
87-138: Well-structured test cases with good coverageThe test cases cover a variety of scenarios including matches, no matches, empty input, empty pattern, and usage errors. Each test case has clear expected outputs and exit codes.
152-158: Good error message with comprehensive debug infoThe error message includes stdout, stderr, and the original error when the exit code doesn't match. This is excellent practice that makes debugging test failures much easier.
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🧹 Nitpick comments (2)
internal/custom_executable/tail/tail_test.go (2)
589-595: Consider handling theio.EOFcase witherrors.Is()as wellWhile this change correctly uses
errors.Is()forio.ErrClosedPipe, consider applying the same approach toio.EOFfor consistency and future-proofing.-if err == io.EOF || errors.Is(err, io.ErrClosedPipe) { +if errors.Is(err, io.EOF) || errors.Is(err, io.ErrClosedPipe) {
609-615: Consider handling theio.EOFcase witherrors.Is()as wellSimilar to the stdout handler, consider using
errors.Is()for theio.EOFcheck here as well for consistency.-if err == io.EOF || errors.Is(err, io.ErrClosedPipe) { +if errors.Is(err, io.EOF) || errors.Is(err, io.ErrClosedPipe) {
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🔇 Additional comments (3)
internal/test_cases/command_multiple_completions_test_case.go (1)
70-70: Clean boolean expression - good improvement!The simplification of the boolean expression makes the code more readable while maintaining the same logic. This is a good practice for code clarity.
internal/custom_executable/tail/tail_test.go (2)
589-589: Improved error handling by usingerrors.Isfor wrapped errorsThis change correctly uses
errors.Is()instead of direct equality checking forio.ErrClosedPipe, which is the recommended approach for handling potentially wrapped errors in Go.
609-609: Consistent error handling improvementGood symmetrical implementation of
errors.Is()in the stderr handling code, matching the stdout implementation approach.
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internal/test_helpers/course_definition.yml (1)
1283-1283: Add newline at end of file
YAML files should end with a newline to satisfy POSIX standards and avoid parsing issues.🧰 Tools
🪛 YAMLlint (1.35.1)
[error] 1283-1283: no new line character at the end of file
(new-line-at-end-of-file)
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internal/test_helpers/course_definition.yml
[error] 1283-1283: no new line character at the end of file
(new-line-at-end-of-file)
🔇 Additional comments (19)
internal/test_helpers/course_definition.yml (19)
308-311: Approve: expanded PATH inThe type builtin: executable filesstage
Including/usr/local/binin the test PATH ensures executables in that directory are discoverable. This aligns with real-world environments.
329-332: Approve: clarifying note for builtins vs executables
Adding the note that commands likeechoshould still be treated as builtins when they exist in$PATHimproves test clarity and reduces ambiguity.
362-364: Approve: clarity on executable behavior inRun a programstage
The new sentence explaining that the custom executable prints its own signature helps avoid misinterpretation of the test’s intent.
366-369: Approve: note about not implementing output manually
Stating that the sample output comes from the executable itself rather than your shell implementation is a helpful clarification.
573-577: Approve: addedcattest in single-quotes stage
Including file names with spaces under single quotes ensures users handle quoted filenames correctly. This test is essential for real-world quoting support.
581-585: Approve: reminder thatcatis provided by the system
The added bullet clarifying thatcatis an external executable and not something to implement is on point.
618-622: Approve: addedcattest in double-quotes stage
Testingcatwith filenames containing embedded quotes validates proper parsing of double-quoted paths.
658-662: Approve: addedcattest in backslash-escaping stage
This ensures that backslashes outside of quotes are handled and filenames with backslashes are parsed correctly.
952-986: Request verification: ensure implementation of theqp2(Builtin completion) stage
You’ve added theqp2stage undercompletions. Confirm that a correspondingtestP1(or similar) function exists in the Go code, that it’s wired into the tester definition, and that fixtures underfixtures/(bash|ash)/completions/cover it.
989-999: Request verification: ensure implementation of thegm9(Completion with arguments) stage
Thegm9stage was appended. Verify that atestP2function and YAML binding exist, and that fixtures validate argument-aware completion.
1025-1031: Request verification: ensure implementation of theqm8(Missing completions) stage
Adding theqm8stage requires a matching Go test (testP3) and updated tester definitions. Please confirm the stage is exercised in your pipeline.
1053-1060: Request verification: ensure implementation of thegy5(Executable completion) stage
The new stage undercompletionsmust be backed by code ininternal/stage_*and fixtures for executable completion. Double-check wiring intester_definition.go.
1085-1092: Request verification: ensure implementation of thewh6(Multiple completions) stage
Confirm that both the two-press bell and listing behaviors for multiple matches are implemented, and that the stage is included in end-to-end tests.
1125-1132: Request verification: ensure implementation of thewt6(Partial completions) stage
This complex stage needs a dedicated test harness and must appear in the fixtures directory. Please verify the Go stage and fixtures cover all prefix-cycling scenarios.
1170-1180: Request verification: ensure implementation of thebr6(Dual-command pipeline) stage
You’ve registeredbr6underpipelines. Make suretestP1(or equivalent) is implemented, thatinternal/custom_executablecode supports piping, and fixtures underfixtures/.../pipelines/exist.
1212-1220: Request verification: ensure implementation of theny9(Pipelines with built-ins) stage
The built-in pipeline tests may require special handling in your shell. Verify that the code paths for built-ins within pipelines are fully exercised by fixtures and Go tests.
1248-1254: Request verification: ensure implementation of thexk3(Multi-command pipelines) stage
Multi-stage pipelines introduce complexity around pipe chaining and process cleanup. Confirm that both code and tests address three-plus command sequences as defined here.
18-23:❓ Verification inconclusive
Verify support for the new "gleam" language slug
You’ve added- slug: "gleam"to the list of supported languages. Ensure that the rest of the tooling (build scripts, template rendering, syntax highlighting, etc.) recognizes this new slug and that any lookup tables have been updated accordingly.Run a quick search to confirm no references to
"gleam"were missed:
🏁 Script executed:
#!/bin/bash # Verify that all code paths include support for "gleam" rg -n 'gleam'Length of output: 78
gleam support requires additional updates across tooling
A search for"gleam"only returned the new slug ininternal/test_helpers/course_definition.yml. Please ensure that every part of our toolchain recognizes this language:
- Update any language‐lookup tables or enums used in build scripts
- Add “gleam” to template rendering logic (e.g., course pages, code sandbox configs)
- Confirm syntax highlighting configs (Prism, highlight.js, etc.) include gleam
- Verify CI jobs, linters or formatters that enumerate supported languages
- Run
rg -n 'gleam'across your configs and code to catch any remaining spots
74-87:❓ Verification inconclusive
Confirm integration of the new
completionsandpipelinesextensions
You’ve introduced two new challenge extensions underextensions. Please verify that these slugs are registered in your internal course loader and that any UI or validation logic has been updated to handle them.For example, check that the loader references these slugs:
🏁 Script executed:
rg -n 'completions' -n 'pipelines'Length of output: 82
🏁 Script executed:
#!/bin/bash # Search for usages of the new extension slugs in the codebase rg -n -e 'completions' -e 'pipelines' .Length of output: 4602
#!/bin/bash # List all Go source files under the internal directory to locate course loader implementation fd --type f --ext go internal
#!/bin/bash # Search for YAML unmarshalling in Go code rg -n 'Unmarshal' -t go # Look for code reading or referencing course_definition.yml rg -n 'course_definition.yml' -t go # Search for any loader functions dealing with extensions or slugs rg -n 'Load' -e 'extension' -t go
🏁 Script executed:
#!/bin/bash # Locate references to the course_definition.yml loader rg -n 'course_definition.yml' -t go # Find YAML unmarshalling calls rg -n 'yaml.Unmarshal' -t go # Find file reads for loading config rg -n 'ReadFile' -t goLength of output: 516
🏁 Script executed:
#!/bin/bash # Display the context around the YAML validation in tester_definition_test.go sed -n '1,200p' internal/tester_definition_test.goLength of output: 320
#!/bin/bash # Search for the declaration of testerDefinition in the internal package rg -n 'testerDefinition' -t go .
🏁 Script executed:
#!/bin/bash # Locate declaration and usage of testerDefinition in Go code rg -n 'testerDefinition' -t go .Length of output: 449
#!/bin/bash # Display the initialization of testerDefinition to verify registered extensions sed -n '1,200p' internal/tester_definition.go
Verify loader registration of new
completionsandpipelinesextensions
Please confirm that both slugs are wired up in your course loader and validation logic (e.g. ininternal/tester_definition.go). For example, run:rg -n 'completions' internal/tester_definition.go rg -n 'pipelines' internal/tester_definition.goThen execute the YAML validation test (
go test -run TestStagesMatchYAML) to ensure no missing entries for these extensions.
Introduce test functions for custom shell commands, enhance file writing logic, and add pipeline stages for testing. These changes improve the testing framework for shell utilities.
Summary by CodeRabbit
grepcommand-line utility with standard input support and pattern matching.greputility and related shell commands.head,tail,wc, andyes.headcommand output..gitignoreto exclude.devcontainer/.grepand shell pipeline behaviors.