import { DiffBuilder } from '../../../src/domain/entities/Diff';

describe('Diff Entity', () => {
  it('should create a diff with all required fields', () => {
    const diff = new DiffBuilder()
      .withFilePath('src/test.ts')
      .withOldContent('old content')
      .withNewContent('new content')
      .withLanguage('typescript')
      .build();

    expect(diff.filePath).toBe('src/test.ts');
    expect(diff.oldContent).toBe('old content');
    expect(diff.newContent).toBe('new content');
    expect(diff.language).toBe('typescript');
    expect(diff.hunks).toEqual([]);
    expect(diff.isNewFile).toBe(false);
    expect(diff.isDeletedFile).toBe(false);
    expect(diff.isBinary).toBe(false);
  });

  it('should create a new file diff', () => {
    const diff = new DiffBuilder()
      .withFilePath('src/new-file.ts')
      .withNewContent('new file content')
      .withLanguage('typescript')
      .asNewFile()
      .build();

    expect(diff.isNewFile).toBe(true);
    expect(diff.isDeletedFile).toBe(false);
  });

  it('should create a deleted file diff', () => {
    const diff = new DiffBuilder()
      .withFilePath('src/deleted-file.ts')
      .withOldContent('deleted file content')
      .withLanguage('typescript')
      .asDeletedFile()
      .build();

    expect(diff.isNewFile).toBe(false);
    expect(diff.isDeletedFile).toBe(true);
  });

  it('should create a binary file diff', () => {
    const diff = new DiffBuilder()
      .withFilePath('image.png')
      .withLanguage('binary')
      .asBinary()
      .build();

    expect(diff.isBinary).toBe(true);
  });
});