var git = require('../'),

rimraf = require('rimraf'),

fs = require( 'fs' );

var historyCountKnownSHA = 'fce88902e66c72b5b93e75bdb5ae717038b221f6';

/**

* Test that retreiving parent works as expected.

*

* @param {Object} test

*/

exports.walkingDiffs = function(test) {

test.expect(16);

git.Repo.open('repos/workdir/.git', function(error, repository) {

repository.getCommit(historyCountKnownSHA, function(error, commit) {

commit.getDiff(function(error, diffList) {

test.equal(null, error, 'Should not error');

diffList[0].patches().forEach(function(patch) {

test.equal(null, error, 'Should not error');

test.equal(patch.oldFile().path(), 'README.md', 'Old file path should match expected');

test.equal(patch.newFile().path(), 'README.md', 'New file path should match expected');

test.equal(patch.size(), 1, 'Content array should be of known length');

test.ok(patch.isModified(), 'Status should be known type');

var hunk = patch.hunks()[0];

test.equal(hunk.size(), 5, 'Content array should be of known length');

var lines = hunk.lines();

test.equal(lines[0].lineOrigin, git.DiffList.LineOrigin.Context, 'First content item should be context');

test.equal(lines[1].lineOrigin, git.DiffList.LineOrigin.Context, 'Second content item should be context');

test.equal(lines[2].lineOrigin, git.DiffList.LineOrigin.Context, 'Third content item should be context');

var oldContent = '__Before submitting a pull request, please ensure both unit tests and lint checks pass.__\n';

test.equal(lines[3].content, oldContent, 'Old content should match known value');

test.equal(lines[3].lineOrigin, git.DiffList.LineOrigin.Deletion, 'Fourth content item should be deletion');

test.equal(lines[3].length, 90, 'Fourth content length should match known value');

var newContent = '__Before submitting a pull request, please ensure both that you\'ve added unit tests to cover your shiny new code, and that all unit tests and lint checks pass.__\n';

test.equal(lines[4].content, newContent, 'New content should match known value');

test.equal(lines[4].lineOrigin, git.DiffList.LineOrigin.Addition, 'Fifth content item should be addition');

test.equal(lines[4].length, 162, 'Fifth content length should match known value');

test.done();

});

});

});

});

};