Remove jq dep from local test runner

Dockerfile

@@ -12,6 +12,6 @@ RUN wget https://github.com/godotengine/godot/releases/download/4.4.1-stable/God
     mv Godot_v4.4.1-stable_linux.x86_64 /usr/bin/godot && \
     rm Godot_v4.4.1-stable_linux.x86_64.zip
 
-WORKDIR /opt/test-runner
+WORKDIR /opt/exercism/gdscript/test-runner
 COPY . .
-ENTRYPOINT ["/opt/test-runner/bin/run.sh"]
+ENTRYPOINT ["/opt/exercism/gdscript/test-runner/bin/run.sh"]

bin/run-tests-in-docker.sh

@@ -23,9 +23,9 @@ docker run \
     --rm \
     --network none \
     --read-only \
-    --mount type=bind,src="${PWD}/tests",dst=/opt/test-runner/tests \
+    --mount type=bind,src="${PWD}/tests",dst=/opt/exercism/gdscript/test-runner/tests \
     --mount type=tmpfs,dst=/tmp \
-    --volume "${PWD}/bin/run-tests.sh:/opt/test-runner/bin/run-tests.sh" \
-    --workdir /opt/test-runner \
-    --entrypoint /opt/test-runner/bin/run-tests.sh \
+    --volume "${PWD}/bin/run-tests.sh:/opt/exercism/gdscript/test-runner/bin/run-tests.sh" \
+    --workdir /opt/exercism/gdscript/test-runner \
+    --entrypoint /opt/exercism/gdscript/test-runner/bin/run-tests.sh \
     exercism/test-runner

bin/test-local-gdscript-solution.sh

@@ -12,38 +12,25 @@ missing_gd_msg="Normally, the exercise subdirectory created by the exercism down
 general_help_msg="Please see https://exercism.org/docs/tracks/gdscript/installation for details."
 if [ ! -f "${slug//-/_}_test.gd" ]; then
     echo "Missing test file: ${slug//-/_}_test.gd"
-    echo $missing_gd_msg
-    echo $general_help_msg
+    echo "$missing_gd_msg"
+    echo "$general_help_msg"
     exit 1
 fi
 if [ ! -f "${slug//-/_}.gd" ]; then
     echo "Missing solution file: ${slug//-/_}.gd"
-    echo $missing_gd_msg
-    echo $general_help_msg
+    echo "$missing_gd_msg"
+    echo "$general_help_msg"
     exit 1
 fi
-if [ ! -f "/opt/exercism/gdscript/test-runner/bin/run.sh" ]; then
-    echo "Missing test runner file: /opt/exercism/gdscript/test-runner/bin/run.sh"
-    echo $general_help_msg
+if [ ! -f "/opt/exercism/gdscript/test-runner/bin/test_runner.gd" ]; then
+    echo "Missing test runner file: /opt/exercism/gdscript/test-runner/bin/test_runner.gd"
+    echo "$general_help_msg"
     exit 1
 fi
 
 solution_dir="$(pwd)"
-output_dir="${solution_dir}/.test-output"
-results_file="${output_dir}/results.json"
-mkdir -p "${output_dir}"
 
-(cd /opt/exercism/gdscript/test-runner && bin/run.sh "$slug" "$solution_dir" "$output_dir") || {
+(cd /opt/exercism/gdscript/test-runner && godot --headless -s bin/test_runner.gd -- "${slug}" "${solution_dir}") || {
     echo "Test runner script failed."
     exit 1
-}
-
-test_status="$(jq -r '.status' "${results_file}")"
-if [ "$test_status" != "pass" ]; then
-    echo "Tests for $slug have failed:"
-    cat "${results_file}"
-    exit 1
-else
-    echo
-    echo "Tests for $slug passed!"
-fi
+}

bin/test_runner.gd

@@ -63,21 +63,26 @@ func parse_args() -> Error:
 	global variables, based on the given args:
 	* `solution_script_path`
 	* `test_suite_script_path`
-	* `output_dir_path`
+	* `output_dir_path` (optional for local test runner, required for standard JSON test runner behaviour)
 	"""
 	var args = OS.get_cmdline_user_args()
 
-	if len(args) != 3:
+	# This script still conforms to [1] but allows 2 arguments for a local test
+	# runner with non-JSON output to eliminate dependence on 'jq'
+	#
+	# [1] https://github.com/exercism/docs/blob/main/building/tooling/test-runners/interface.md#execution
+	if len(args) not in [2,3]:
 		push_error(
-			"The scrips needs exactly 3 arguments, was called with %s: %s" % [
+			"The script needs exactly 2 or exactly 3 arguments, was called with %s: %s" % [
 				len(args), str(args)
 			]
 		)
 		return ERR_INVALID_PARAMETER
 
 	var slug = args[0]
 	var solution_dir_path = args[1]
-	output_dir_path = args[2]
+	if len(args) == 3:
+		output_dir_path = args[2]
 
 	# Test folders use dashes, but test files use underscores
 	var gdscript_path = solution_dir_path.path_join(slug.replace("-", "_"))
@@ -127,7 +132,7 @@ func load_solution_script() -> Error:
 			"message": "The solution file could not be parsed.",
 			"tests": [],
 		}
-		file_utils.write_results_file(results, output_dir_path)
+		file_utils.output_results(results, output_dir_path)
 		return ERR_PARSE_ERROR
 
 	return OK
@@ -170,4 +175,4 @@ func run_tests() -> void:
 				results["status"] = "fail"
 				break
 
-	file_utils.write_results_file(results, output_dir_path)
+	file_utils.output_results(results, output_dir_path)

bin/utils/file_utils.gd

@@ -89,6 +89,37 @@ func load_script(script_path: String) -> Object:
 	return script
 
 
+func output_results(results: Dictionary, output_dir_path: String) -> Error:
+	"""
+	If output_dir_path is empty, outputs friendly-formatted test results to
+	stdout.
+
+	Otherwise, writes JSON results to results.json in the given path.
+	"""
+	if output_dir_path == "":
+		return print_friendly_results(results)
+	else:
+		return write_results_file(results, output_dir_path)
+
+
+func print_friendly_results(results: Dictionary) -> Error:
+	"""
+	Prints rich results to stdout.
+	"""
+	var rich_results = [""]
+	if results.status == "pass":
+		rich_results.push_back("[color=yellow]Exercise passed!  Nicely done![/color]")
+	else:
+		rich_results.push_back("Exercise has at least one failed test:")
+		for test in results.tests:
+			if test.status == "pass":
+				rich_results.push_back(" %s [color=yellow]passed ✔[/color]" % test.name)
+			else:
+				rich_results.push_back(" %s [color=pink]failed: %s[/color]" % [test.name, test.message])
+	print_rich("\n".join(rich_results))
+	return OK
+
+
 func write_results_file(results: Dictionary, output_dir_path: String) -> Error:
 	"""
 	Saves a dictionary as a `results.json` file in the output directory. The file