Adds final state and regression tests

.credo.exs

@@ -72,6 +72,7 @@
           {Credo.Check.Consistency.ExceptionNames, []},
           {Credo.Check.Consistency.LineEndings, []},
           {Credo.Check.Consistency.ParameterPatternMatching, []},
+          {Credo.Check.Readability.ParenthesesOnZeroArityDefs, []},
           {Credo.Check.Consistency.SpaceAroundOperators, []},
           {Credo.Check.Consistency.SpaceInParentheses, []},
           {Credo.Check.Consistency.TabsOrSpaces, []},
@@ -102,7 +103,7 @@
           {Credo.Check.Readability.ModuleDoc, []},
           {Credo.Check.Readability.ModuleNames, []},
           {Credo.Check.Readability.ParenthesesInCondition, []},
-          {Credo.Check.Readability.ParenthesesOnZeroArityDefs, []},
+          # {Credo.Check.Readability.ParenthesesOnZeroArityDefs, []},
           {Credo.Check.Readability.PipeIntoAnonymousFunctions, []},
           {Credo.Check.Readability.PredicateFunctionNames, []},
           {Credo.Check.Readability.PreferImplicitTry, []},

.githooks/pre-push

@@ -10,8 +10,20 @@ echo "🔍 Running pre-push validation pipeline..."
 # Run formatting check
 echo "📝 Checking code formatting..."
 if ! mix format --check-formatted; then
-    echo "❌ Code formatting check failed. Run 'mix format' to fix."
-    exit 1
+    echo "❌ Code formatting issues found. Running 'mix format' to fix..."
+    mix format
+
+    # Check if files were actually changed by formatting
+    if ! git diff --quiet; then
+        echo "📝 Code has been automatically formatted."
+        echo "🔄 Please commit the formatting changes and push again:"
+        echo "   git add ."
+        echo "   git commit -m 'Auto-format code with mix format'"
+        echo "   git push"
+        exit 1
+    else
+        echo "✅ No files needed formatting changes."
+    fi
 fi
 
 # Run regression tests (critical - these should never break)

.github/workflows/ci.yml

@@ -208,7 +208,7 @@ jobs:
   regression-tests:
     name: Regression Test Suite
     runs-on: ubuntu-latest
-    needs: test
+    needs: compile
 
     steps:
     - name: Checkout code

README.md

@@ -42,6 +42,39 @@ An Elixir implementation of SCXML (State Chart XML) state charts with a focus on
 - Expression evaluation and datamodel support
 - Enhanced validation for complex SCXML constructs
 
+## Future Extensions
+
+### **Feature-Based Test Validation System**
+An enhancement to improve test accuracy by validating that tests actually exercise intended SCXML functionality:
+
+**Goal**: Prevent false positive tests where unsupported features are silently ignored, leading to "passing" tests that don't actually validate the intended behavior.
+
+**Proposed Enhancement**:
+```elixir
+# Example test with feature requirements
+defmodule SCIONTest.SendIdlocation.Test0Test do
+  use SC.Case
+  @tag :scion
+  @required_features [:datamodel, :send_elements, :onentry_actions, :conditional_transitions]
+
+  test "test0" do
+    # Test implementation that requires these features
+  end
+end
+```
+
+**Implementation Phases**:
+1. **Feature Detection Phase** - Analyze SCXML documents to identify used features
+2. **Feature Validation Phase** - Fail tests when required features are unsupported  
+3. **Test Annotation Phase** - Add `@required_features` tags to existing tests
+4. **Incremental Implementation** - Enable feature flags as capabilities are added
+
+**Benefits**:
+- Eliminates false positive test results
+- Provides clear roadmap of which features tests depend on
+- Enables progressive test suite expansion as features are implemented
+- Improves test reliability and developer confidence
+
 ## Installation
 
 Add `sc` to your list of dependencies in `mix.exs`: