first couple of tests for the half baked parser

src/diagrams/gitGraph/gitGraphParser.spec.js

@@ -0,0 +1,38 @@
+var proxyquire = require('proxyquire');
+var parser = require('./parser/gitGraph').parser;
+var ast = require("./gitGraphAst.js");
+describe('when parsing a gitGraph',function() {
+    beforeEach(function () {
+        parser.yy = ast;
+        parser.yy.reset();
+    });
+    it('should handle a gitGraph defintion', function () {
+        str = 'gitGraph:\n' +
+        'commit';
+
+        parser.parse(str);
+        var commits = parser.yy.getCommits();
+        console.log(commits);
+
+        expect(Object.keys(commits).length).toBe(1);
+        expect(parser.yy.getCurrentBranch()).toBe("master");
+        expect(Object.keys(parser.yy.getBranches()).length).toBe(1);
+    });
+    it('should handle branch statement', function () {
+        str = 'gitGraph:\n' +
+        'commit\n' +
+        'commit\n' +
+        'branch newbranch\n' +
+        'commit\n' +
+        'commit\n';
+
+        parser.parse(str);
+        var commits = parser.yy.getCommits();
+        console.log(commits);
+
+        expect(Object.keys(commits).length).toBe(4);
+        expect(parser.yy.getCurrentBranch()).toBe("master");
+        expect(Object.keys(parser.yy.getBranches())).toContain('newbranch');
+        expect(Object.keys(parser.yy.getBranches()).length).toBe(2);
+    });
+});