1 files changed, 146 insertions, 0 deletions
diff --git a/lib/converter_test.go b/lib/converter_test.go
new file mode 100644
index 00000000..54aff94d
--- /dev/null
+++ b/lib/converter_test.go
@@ -0,0 +1,146 @@
+package lib
+
+import (
+	"bytes"
+	"io"
+	"os"
+	"testing"
+)
+
+func TestRegisterInputConverter(t *testing.T) {
+	testName := "test_input_conv_" + t.Name()
+	mockConv := &mockInputConverter{
+		typeName:    testName,
+		action:      ActionAdd,
+		description: "Test input converter",
+	}
+
+	err := RegisterInputConverter(testName, mockConv)
+	if err != nil {
+		t.Fatalf("RegisterInputConverter failed: %v", err)
+	}
+
+	// Test registering duplicate
+	err = RegisterInputConverter(testName, mockConv)
+	if err != ErrDuplicatedConverter {
+		t.Errorf("RegisterInputConverter duplicate error = %v, want %v", err, ErrDuplicatedConverter)
+	}
+}
+
+func TestRegisterInputConverter_TrimSpace(t *testing.T) {
+	testName := "  test_input_conv_space_" + t.Name() + "  "
+	mockConv := &mockInputConverter{
+		typeName:    testName,
+		action:      ActionAdd,
+		description: "Test input converter",
+	}
+
+	err := RegisterInputConverter(testName, mockConv)
+	if err != nil {
+		t.Fatalf("RegisterInputConverter failed: %v", err)
+	}
+
+	// Test registering duplicate with trimmed name
+	err = RegisterInputConverter("test_input_conv_space_"+t.Name(), mockConv)
+	if err != ErrDuplicatedConverter {
+		t.Errorf("RegisterInputConverter should detect duplicate after trim")
+	}
+}
+
+func TestRegisterOutputConverter(t *testing.T) {
+	testName := "test_output_conv_" + t.Name()
+	mockConv := &mockOutputConverter{
+		typeName:    testName,
+		action:      ActionOutput,
+		description: "Test output converter",
+	}
+
+	err := RegisterOutputConverter(testName, mockConv)
+	if err != nil {
+		t.Fatalf("RegisterOutputConverter failed: %v", err)
+	}
+
+	// Test registering duplicate
+	err = RegisterOutputConverter(testName, mockConv)
+	if err != ErrDuplicatedConverter {
+		t.Errorf("RegisterOutputConverter duplicate error = %v, want %v", err, ErrDuplicatedConverter)
+	}
+}
+
+func TestRegisterOutputConverter_TrimSpace(t *testing.T) {
+	testName := "  test_output_conv_space_" + t.Name() + "  "
+	mockConv := &mockOutputConverter{
+		typeName:    testName,
+		action:      ActionOutput,
+		description: "Test output converter",
+	}
+
+	err := RegisterOutputConverter(testName, mockConv)
+	if err != nil {
+		t.Fatalf("RegisterOutputConverter failed: %v", err)
+	}
+
+	// Test registering duplicate with trimmed name
+	err = RegisterOutputConverter("test_output_conv_space_"+t.Name(), mockConv)
+	if err != ErrDuplicatedConverter {
+		t.Errorf("RegisterOutputConverter should detect duplicate after trim")
+	}
+}
+
+func TestListInputConverter(t *testing.T) {
+	// Register a converter to ensure there's at least one
+	testName := "list_input_conv_" + t.Name()
+	mockConv := &mockInputConverter{
+		typeName:    testName,
+		action:      ActionAdd,
+		description: "List test input converter",
+	}
+	RegisterInputConverter(testName, mockConv)
+
+	// Capture stdout
+	old := os.Stdout
+	r, w, _ := os.Pipe()
+	os.Stdout = w
+
+	ListInputConverter()
+
+	w.Close()
+	os.Stdout = old
+
+	var buf bytes.Buffer
+	io.Copy(&buf, r)
+	output := buf.String()
+
+	if len(output) == 0 {
+		t.Error("ListInputConverter should produce output")
+	}
+}
+
+func TestListOutputConverter(t *testing.T) {
+	// Register a converter to ensure there's at least one
+	testName := "list_output_conv_" + t.Name()
+	mockConv := &mockOutputConverter{
+		typeName:    testName,
+		action:      ActionOutput,
+		description: "List test output converter",
+	}
+	RegisterOutputConverter(testName, mockConv)
+
+	// Capture stdout
+	old := os.Stdout
+	r, w, _ := os.Pipe()
+	os.Stdout = w
+
+	ListOutputConverter()
+
+	w.Close()
+	os.Stdout = old
+
+	var buf bytes.Buffer
+	io.Copy(&buf, r)
+	output := buf.String()
+
+	if len(output) == 0 {
+		t.Error("ListOutputConverter should produce output")
+	}
+}