var assert = require("assert");

var path = require("path");

var Promise = require("nodegit-promise");

var local = path.join.bind(path, __dirname);

describe("Patch", function() {

var NodeGit = require("../../");

var Repository = NodeGit.Repository;

var reposPath = local("../repos/workdir");

var oid = "fce88902e66c72b5b93e75bdb5ae717038b221f6";

beforeEach(function() {

var test = this;

return Repository.open(reposPath).then(function(repository) {

test.repository = repository;

return repository.openIndex();

})

.then(function(index) {

test.index = index;

return test.repository.getBranchCommit("master");

})

.then(function(masterCommit) {

return masterCommit.getTree();

})

.then(function(tree) {

test.masterCommitTree = tree;

return test.repository.getCommit(oid);

})

.then(function(commit) {

test.commit = commit;

return commit.getDiff();

})

.then(function(diff) {

test.diff = diff;

return diff[0].patches();

})

.catch(function(e) {

return Promise.reject(e);

});

});

it("retrieve the line stats of a patch", function() {

return this.diff[0].patches()

.then(function(patches) {

var patch = patches[0];

var lineStats = patch.lineStats();

assert.equal(patch.oldFile().path(), "README.md");

assert.equal(patch.newFile().path(), "README.md");

assert.equal(patch.size(), 1);

assert.ok(patch.isModified());

assert.equal(lineStats.total_context, 3);

assert.equal(lineStats.total_additions, 1);

assert.equal(lineStats.total_deletions, 1);

});

});

});