git-patch-additions/tests/git-patch-additions.spec.js

Parse additions from git patches

var m = require('mochainon');
var fs = require('fs');
var path = require('path');
var gitPatchAdditions = require('../lib/git-patch-additions');

var readPatch = function(name) {
  var patchesPath = path.join(__dirname, 'patches');
  return fs.readFileSync(path.join(patchesPath, name), {
    encoding: 'utf8'
  });
};

describe('Patch:', function() {

  describe('.getAdditions()', function() {

    describe('given a single addition in a single file', function() {

      beforeEach(function() {
        this.patch = readPatch('addition_single_file.patch');
      });

      it('should return the single addition', function() {
        var additions = gitPatchAdditions.get(this.patch);
        m.chai.expect(additions).to.deep.equal([
          {
            line: 2,
            content: 'Hola World',
            commit: 'e53787fc794ff85986479d85deddfabef0b3489e',
            file: 'foo.txt'
          }
        ]);
      });

    });

    describe('given a single addition in the middle of a file', function() {

      beforeEach(function() {
        this.patch = readPatch('addition_single_file_middle.patch');
      });

      it('should return the single addition', function() {
        var additions = gitPatchAdditions.get(this.patch);
        m.chai.expect(additions).to.deep.equal([
          {
            line: 5,
            content: '3. Third Item',
            commit: 'e53787fc794ff85986479d85deddfabef0b3489e',
            file: 'foo.txt'
          }
        ]);
      });

    });

    describe('given a single file patch without additions', function() {

      beforeEach(function() {
        this.patch = readPatch('deletion_single_file.patch');
      });

      it('should return an empty array', function() {
        var additions = gitPatchAdditions.get(this.patch);
        m.chai.expect(additions).to.deep.equal([]);
      });

    });

    describe('given additions in multiple files', function() {

      beforeEach(function() {
        this.patch = readPatch('addition_multiple_files.patch');
      });

      it('should return all additions separated by file', function() {
        var additions = gitPatchAdditions.get(this.patch);
        m.chai.expect(additions).to.deep.equal([
          {
            line: 2,
            content: 'Lorem ipsum dolor sit amet',
            commit: 'e53787fc794ff85986479d85deddfabef0b3489e',
            file: 'bar.txt'
          },
          {
            line: 2,
            content: 'Hola World',
            commit: 'e53787fc794ff85986479d85deddfabef0b3489e',
            file: 'foo.txt'
          }
        ]);
      });

    });

    describe('given real patches from checked pull requests', function() {

      describe('given f4c9d76eaea972b2006550267d203e5897daf370', function() {

        beforeEach(function() {
          this.patch = readPatch('f4c9d76eaea972b2006550267d203e5897daf370.patch');
        });

        it('should parse the additions correctly', function() {
          var additions = gitPatchAdditions.get(this.patch);
          m.chai.expect(additions).to.deep.equal([
            {
              content: '1. First item.',
              commit: 'f4c9d76eaea972b2006550267d203e5897daf370',
              file: 'README.md',
              line: 5
            },
            {
              content: 'Lorem ipsum dolor sit amet.',
              commit: 'f4c9d76eaea972b2006550267d203e5897daf370',
              file: 'README.md',
              line: 7
            },
            {
              content: '2. Second item.',
              commit: 'f4c9d76eaea972b2006550267d203e5897daf370',
              file: 'README.md',
              line: 9
            },
            {
              content: 'Lorem ipsum dolor sit amet.',
              commit: 'f4c9d76eaea972b2006550267d203e5897daf370',
              file: 'README.md',
              line: 11
            },
            {
              content: 'The end.',
              commit: 'f4c9d76eaea972b2006550267d203e5897daf370',
              file: 'README.md',
              line: 13
            }
          ]);
        });

      });

      describe('given 45441c22b36edf74df4ed890b363ff451fcf7df9', function() {

        beforeEach(function() {
          this.patch = readPatch('45441c22b36edf74df4ed890b363ff451fcf7df9.patch');
        });

        it('should parse the additions correctly', function() {
          var additions = gitPatchAdditions.get(this.patch);
          m.chai.expect(additions).to.deep.equal([
            {
              content: '3. Third item.',
              commit: '45441c22b36edf74df4ed890b363ff451fcf7df9',
              file: 'README.md',
              line: 5
            },
            {
              content: 'Foo bar',
              commit: '45441c22b36edf74df4ed890b363ff451fcf7df9',
              file: 'README.md',
              line: 7
            }
          ]);
        });

      });

      describe('given eff03aaa6535bf87296901e3c2cf26b2243be84e', function() {

        beforeEach(function() {
          this.patch = readPatch('eff03aaa6535bf87296901e3c2cf26b2243be84e.patch');
        });

        it('should parse the additions correctly', function() {
          var additions = gitPatchAdditions.get(this.patch);
          m.chai.expect(additions).to.deep.equal([
            {
              content: '3. Third item.',
              commit: '45441c22b36edf74df4ed890b363ff451fcf7df9',
              file: 'README.md',
              line: 5
            },
            {
              content: 'Foo bar',
              commit: '45441c22b36edf74df4ed890b363ff451fcf7df9',
              file: 'README.md',
              line: 7
            },
            {
              content: 'Foo bar asdf',
              commit: 'eff03aaa6535bf87296901e3c2cf26b2243be84e',
              file: 'README.md',
              line: 5
            }
          ]);
        });

      });

    });

  });

});