package errors

import (
	"errors"
	"testing"
)

func TestGitError(t *testing.T) {
	baseErr := errors.New("command failed")
	gitErr := &GitError{
		Command: "status",
		Err:     baseErr,
	}

	expected := "git status failed: command failed"
	if gitErr.Error() != expected {
		t.Errorf("GitError.Error() = %q, want %q", gitErr.Error(), expected)
	}

	if gitErr.Unwrap() != baseErr {
		t.Errorf("GitError.Unwrap() did not return base error")
	}
}

func TestAPIError(t *testing.T) {
	tests := []struct {
		name       string
		apiErr     *APIError
		expected   string
		shouldWrap bool
	}{
		{
			name: "with status code",
			apiErr: &APIError{
				StatusCode: 404,
				Message:    "not found",
			},
			expected: "API error (status 404): not found",
		},
		{
			name: "without status code",
			apiErr: &APIError{
				Message: "connection failed",
			},
			expected: "API error: connection failed",
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if tt.apiErr.Error() != tt.expected {
				t.Errorf("APIError.Error() = %q, want %q", tt.apiErr.Error(), tt.expected)
			}
		})
	}
}

func TestFileError(t *testing.T) {
	baseErr := errors.New("permission denied")
	fileErr := &FileError{
		Path: "/tmp/test.txt",
		Op:   "read",
		Err:  baseErr,
	}

	expected := "file read failed for /tmp/test.txt: permission denied"
	if fileErr.Error() != expected {
		t.Errorf("FileError.Error() = %q, want %q", fileErr.Error(), expected)
	}

	if fileErr.Unwrap() != baseErr {
		t.Errorf("FileError.Unwrap() did not return base error")
	}
}