feat: implement task manager testability improvements

Makefile

@@ -33,7 +33,7 @@ test-coverage: ## Run tests with coverage
 	@go test -v -race -coverprofile=coverage.out ./...
 
 clean: ## Clean build artifacts
-	@rm -f coverage.out junit-unit.xml test-unit.json test-e2e.json
+	@rm -f *coverage.out junit-unit.xml test-unit.json test-e2e.json
 	@go clean
 
 fmt: ## Format code

README.md

@@ -162,19 +162,28 @@ if err := task.Run(ctx); err != nil {
 
 ## Testing
 
-The module provides comprehensive mocking support:
+The module provides comprehensive testing support:
+
+### Testing Support
+
+The module provides comprehensive testing utilities:
 
 ```go
-import "github.com/ndizazzo/task-engine/mocks"
+import "github.com/ndizazzo/task-engine/testing"
+import "github.com/ndizazzo/task-engine/testing/mocks"
 
-// Create mock command runner for testing
-mockRunner := &mocks.MockCommandRunner{}
-mockRunner.On("RunCommand", "echo", "hello").Return("hello", nil)
+// Performance testing
+tester := testing.NewPerformanceTester(taskManager, logger)
+metrics := tester.BenchmarkTaskExecution(ctx, task, 100, 10)
 
-// Use discard logger for tests
+// Mock implementations
+mockManager := mocks.NewEnhancedTaskManagerMock()
+mockRunner := &mocks.MockCommandRunner{}
 logger := mocks.NewDiscardLogger()
 ```
 
+See [testing/README.md](testing/README.md) for comprehensive testing documentation.
+
 ## License
 
 This project is available under the MIT License.

actions/docker/check_container_health_action_test.go

@@ -8,7 +8,7 @@ import (
 	"time"
 
 	"github.com/ndizazzo/task-engine/actions/docker"
-	command_mock "github.com/ndizazzo/task-engine/mocks"
+	command_mock "github.com/ndizazzo/task-engine/testing/mocks"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/suite"
 )

actions/docker/docker_compose_down_action_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 
 	"github.com/ndizazzo/task-engine/actions/docker"
-	command_mock "github.com/ndizazzo/task-engine/mocks"
+	command_mock "github.com/ndizazzo/task-engine/testing/mocks"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/suite"
 )

actions/docker/docker_compose_exec_action_test.go

@@ -7,7 +7,7 @@ import (
 	"testing"
 
 	"github.com/ndizazzo/task-engine/actions/docker"
-	command_mock "github.com/ndizazzo/task-engine/mocks"
+	command_mock "github.com/ndizazzo/task-engine/testing/mocks"
 	"github.com/stretchr/testify/suite"
 )
 

actions/docker/docker_compose_ls_action.go

@@ -172,8 +172,24 @@ func (a *DockerComposeLsAction) parseStackLine(line string) *ComposeStack {
 	// Format: NAME STATUS CONFIG FILES
 	// Example: myapp running /path/to/docker-compose.yml
 	// Example: testapp stopped /path/to/compose.yml,/path/to/override.yml
+	// Quiet format: just the stack name
+	// Example: myapp
 
 	parts := strings.Fields(line)
+	if len(parts) == 0 {
+		return nil
+	}
+
+	// If quiet mode, we only have the stack name
+	if a.Quiet {
+		return &ComposeStack{
+			Name:        parts[0],
+			Status:      "",
+			ConfigFiles: "",
+		}
+	}
+
+	// Regular mode requires at least 3 fields
 	if len(parts) < 3 {
 		return nil
 	}