refactor: refactored all the test files

.github/test_organization.md

@@ -0,0 +1,90 @@
+# Test Organization for wrkflw
+
+Following Rust best practices, we have reorganized the tests in this project to improve maintainability and clarity.
+
+## Test Structure
+
+Tests are now organized as follows:
+
+### 1. Unit Tests
+
+Unit tests remain in the source files using the `#[cfg(test)]` attribute. These tests are designed to test individual functions and small units of code in isolation.
+
+Example:
+```rust
+// In src/matrix.rs
+#[cfg(test)]
+mod tests {
+    use super::*;
+    
+    #[test]
+    fn test_function() {
+        // Test code here
+    }
+}
+```
+
+### 2. Integration Tests
+
+Integration tests have been moved to the `tests/` directory. These tests import and test the public API of the crate, ensuring that different components work together correctly.
+
+- `tests/matrix_test.rs` - Tests for matrix expansion functionality
+- `tests/reusable_workflow_test.rs` - Tests for reusable workflow validation
+
+### 3. End-to-End Tests
+
+End-to-end tests are also located in the `tests/` directory. These tests simulate real-world usage scenarios and often involve external dependencies like Docker.
+
+- `tests/cleanup_test.rs` - Tests for cleanup functionality with Docker containers, networks, etc.
+
+## Running Tests
+
+You can run all tests using:
+```bash
+cargo test
+```
+
+To run only unit tests:
+```bash
+cargo test --lib
+```
+
+To run only integration tests:
+```bash
+cargo test --test matrix_test --test reusable_workflow_test
+```
+
+To run only end-to-end tests:
+```bash
+cargo test --test cleanup_test
+```
+
+To run a specific test:
+```bash
+cargo test test_name
+```
+
+## CI Configuration
+
+Our CI workflow has been updated to run all types of tests separately, allowing for better isolation and clearer failure reporting:
+
+```yaml
+- name: Run unit tests
+  run: cargo test --lib --verbose
+
+- name: Run integration tests
+  run: cargo test --test matrix_test --test reusable_workflow_test --verbose
+
+- name: Run e2e tests (if Docker available)
+  run: cargo test --test cleanup_test --verbose -- --skip docker --skip processes
+```
+
+## Writing New Tests
+
+When adding new tests:
+
+1. For unit tests, add them to the relevant source file using `#[cfg(test)]`
+2. For integration tests, add them to the `tests/` directory with a descriptive name like `feature_name_test.rs`
+3. For end-to-end tests, also add them to the `tests/` directory with a descriptive name
+
+Follow the existing patterns to ensure consistency. 

.github/workflows/rust.yml

@@ -12,12 +12,32 @@ env:
 
 jobs:
   build:
-
     runs-on: macos-latest
-
     steps:
     - uses: actions/checkout@v3
     - name: Build
       run: cargo build --verbose
-    - name: Run tests
-      run: cargo test --verbose 
+      
+  test-unit:
+    needs: [build]
+    runs-on: macos-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Run unit tests
+      run: cargo test --lib --verbose
+      
+  test-integration:
+    needs: [build]
+    runs-on: macos-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Run integration tests
+      run: cargo test --test matrix_test --test reusable_workflow_test --verbose
+      
+  test-e2e:
+    needs: [build]
+    runs-on: macos-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Run e2e tests (if Docker available)
+      run: cargo test --test cleanup_test --verbose -- --skip docker --skip processes