1 files changed, 177 insertions, 0 deletions
diff --git a/lib/converter_test.go b/lib/converter_test.go
new file mode 100644
index 00000000..9910c211
--- /dev/null
+++ b/lib/converter_test.go
@@ -0,0 +1,177 @@
+package lib
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestRegisterInputConverter(t *testing.T) {
+	// Save original state
+	originalMap := inputConverterMap
+	defer func() { inputConverterMap = originalMap }()
+	
+	// Reset map for testing
+	inputConverterMap = make(map[string]InputConverter)
+
+	tests := []struct {
+		name      string
+		converter string
+		wantErr   bool
+	}{
+		{
+			name:      "register new converter",
+			converter: "test1",
+			wantErr:   false,
+		},
+		{
+			name:      "register duplicate converter",
+			converter: "test1",
+			wantErr:   true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			// Create a mock converter
+			mockConverter := &mockInputConverter{typ: tt.converter}
+			err := RegisterInputConverter(tt.converter, mockConverter)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("RegisterInputConverter() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}
+
+func TestRegisterOutputConverter(t *testing.T) {
+	// Save original state
+	originalMap := outputConverterMap
+	defer func() { outputConverterMap = originalMap }()
+	
+	// Reset map for testing
+	outputConverterMap = make(map[string]OutputConverter)
+
+	tests := []struct {
+		name      string
+		converter string
+		wantErr   bool
+	}{
+		{
+			name:      "register new converter",
+			converter: "test1",
+			wantErr:   false,
+		},
+		{
+			name:      "register duplicate converter",
+			converter: "test1",
+			wantErr:   true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			// Create a mock converter
+			mockConverter := &mockOutputConverter{typ: tt.converter}
+			err := RegisterOutputConverter(tt.converter, mockConverter)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("RegisterOutputConverter() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}
+
+func TestListInputConverter(t *testing.T) {
+	// Save original state
+	originalMap := inputConverterMap
+	defer func() { inputConverterMap = originalMap }()
+	
+	// Reset and populate map
+	inputConverterMap = make(map[string]InputConverter)
+	inputConverterMap["test"] = &mockInputConverter{typ: "test"}
+	
+	// Just test that it doesn't panic
+	ListInputConverter()
+}
+
+func TestListOutputConverter(t *testing.T) {
+	// Save original state
+	originalMap := outputConverterMap
+	defer func() { outputConverterMap = originalMap }()
+	
+	// Reset and populate map
+	outputConverterMap = make(map[string]OutputConverter)
+	outputConverterMap["test"] = &mockOutputConverter{typ: "test"}
+	
+	// Just test that it doesn't panic
+	ListOutputConverter()
+}
+
+// Mock converters for testing
+type mockInputConverter struct {
+	typ string
+}
+
+func (m *mockInputConverter) GetType() string {
+	return m.typ
+}
+
+func (m *mockInputConverter) GetAction() Action {
+	return ActionAdd
+}
+
+func (m *mockInputConverter) GetDescription() string {
+	return "mock input converter"
+}
+
+func (m *mockInputConverter) Input(c Container) (Container, error) {
+	return c, nil
+}
+
+type mockOutputConverter struct {
+	typ string
+}
+
+func (m *mockOutputConverter) GetType() string {
+	return m.typ
+}
+
+func (m *mockOutputConverter) GetAction() Action {
+	return ActionOutput
+}
+
+func (m *mockOutputConverter) GetDescription() string {
+	return "mock output converter"
+}
+
+func (m *mockOutputConverter) Output(c Container) error {
+	return nil
+}
+
+func TestRegisterConverterWithWhitespace(t *testing.T) {
+	// Save original state
+	originalMap := inputConverterMap
+	defer func() { inputConverterMap = originalMap }()
+	
+	// Reset map for testing
+	inputConverterMap = make(map[string]InputConverter)
+
+	mockConverter := &mockInputConverter{typ: "test"}
+	err := RegisterInputConverter("  test  ", mockConverter)
+	if err != nil {
+		t.Errorf("RegisterInputConverter() with whitespace should not error: %v", err)
+	}
+
+	// Verify it was registered with trimmed name
+	if _, ok := inputConverterMap["test"]; !ok {
+		// Check without trim
+		found := false
+		for k := range inputConverterMap {
+			if strings.TrimSpace(k) == "test" {
+				found = true
+				break
+			}
+		}
+		if !found {
+			t.Error("Converter not registered properly with whitespace")
+		}
+	}
+}