Files
2025-12-16 11:47:45 +00:00

108 lines
2.8 KiB
Go

// Copyright 2023 Harness, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package diff
import (
"bufio"
"reflect"
"strings"
"testing"
"github.com/harness/gitness/errors"
)
func TestParseFileHeader(t *testing.T) {
tests := []struct {
name string
input string
includePatch bool
expectedFile *File
expectedError error
}{
{
name: "valid file header with no quoted paths",
input: "diff --git a/example.txt b/example.txt",
includePatch: false,
expectedFile: &File{
Path: "example.txt",
OldPath: "example.txt",
Type: FileChange,
},
expectedError: nil,
},
{
name: "valid file header with quoted paths",
input: `diff --git "a/example space.txt" "b/example space.txt"`,
includePatch: false,
expectedFile: &File{
Path: "example space.txt",
OldPath: "example space.txt",
Type: FileChange,
},
expectedError: nil,
},
{
name: "valid file header with a as quoted path",
input: `diff --git "a/example space.txt" b/example space.txt`,
includePatch: false,
expectedFile: &File{
Path: "example space.txt",
OldPath: "example space.txt",
Type: FileChange,
},
expectedError: nil,
},
{
name: "valid file header with b as quoted path",
input: `diff --git a/example_space.txt "b/example_space.txt"`,
includePatch: false,
expectedFile: &File{
Path: "example_space.txt",
OldPath: "example_space.txt",
Type: FileChange,
},
expectedError: nil,
},
{
name: "malformed file header",
input: "diff --git a/example.txt example.txt",
includePatch: false,
expectedFile: nil,
expectedError: &errors.Error{},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
parser := &Parser{
Reader: bufio.NewReader(strings.NewReader(tt.input)),
IncludePatch: tt.includePatch,
}
parser.buffer = []byte(tt.input)
file, err := parser.parseFileHeader()
if err != nil && tt.expectedError != nil && !errors.As(err, &tt.expectedError) {
t.Errorf("expected error: %v, got: %v", tt.expectedError, err)
}
if !reflect.DeepEqual(file, tt.expectedFile) {
t.Errorf("expected file: %+v, got: %+v", tt.expectedFile, file)
}
})
}
}