Add tests for gitHandler functions

test/gitHandlers.js

@@ -0,0 +1,112 @@
+process.env.NODE_ENV = 'test';
+const path = require('path');
+const chai = require('chai');
+// eslint-disable-next-line
+const shell = require('shelljs');
+const git = require('simple-git/promise');
+const fs = require('fs');
+const randomString = require('randomstring');
+const util = require('util');
+const GitHandler = require('../api/utils/gitHandlers');
+
+const fsWriteFile = util.promisify(fs.writeFile);
+
+appPath = path.resolve('../codecharacter-server-2019/');
+const getUserDir = username => `${appPath}/storage/codes/${username}`;
+
+describe('Test Git Handlers', async () => {
+  const username = 'gitHandler_testusername';
+  const userDir = getUserDir(username);
+  const initialCommitMessage = 'Initial Commit';
+  const text = new Array(8);
+  // eslint-disable-next-line no-undef
+  before(async () => {
+    for (let index = 0; index < 10; index += 1) {
+      text[index] = randomString.generate(10);
+    }
+  });
+  // eslint-disable-next-line no-undef
+  after(async () => {
+    await shell.rm('-rf', userDir);
+  });
+  it('test createUserDir', async () => {
+    const handlerResponse = await GitHandler.createUserDir(username);
+    chai.assert(await shell.test('-d', userDir) === true);
+    const logResult = await git(userDir).log();
+    chai.assert(await logResult.latest.message.includes(initialCommitMessage));
+    chai.assert(handlerResponse === true);
+  });
+
+  it('test latestCommit', async () => {
+    await fsWriteFile(`${userDir}/code.cpp`, text[0]);
+    await git(userDir).add('./*');
+    await git(userDir).commit(text[0]);
+    const latestCommit = await GitHandler.latestCommit(username);
+    chai.assert(latestCommit.message.includes(text[0]));
+  });
+
+  it('test commitLog', async () => {
+    await fsWriteFile(`${userDir}/code.cpp`, text[1]);
+    await git(userDir).add('./*');
+    await git(userDir).commit(text[1]);
+    const commitLog = await GitHandler.commitLog(username);
+    chai.assert(commitLog[0].message.includes(text[1]));
+    chai.assert(commitLog[1].message.includes(text[0]));
+    chai.assert(commitLog[2].message.includes(initialCommitMessage));
+  });
+
+  it('test add', async () => {
+    await git(userDir).commit(text[2]);
+    let logResult = await git(userDir).log();
+    let latestCommit = logResult.latest;
+    chai.assert(!latestCommit.message.includes(text[2]));
+    await fsWriteFile(`${userDir}/code.cpp`, text[2]);
+    await GitHandler.add(username);
+    await git(userDir).commit(text[2]);
+    logResult = await git(userDir).log();
+    latestCommit = logResult.latest;
+    chai.assert(latestCommit.message.includes(text[2]));
+  });
+
+  it('test diff', async () => {
+    let diff = await GitHandler.diff(username);
+    chai.assert(diff === '');
+    await fsWriteFile(`${userDir}/code.cpp`, text[3]);
+    diff = await GitHandler.diff(username);
+    chai.assert(diff !== '');
+  });
+
+  it('test diff staged', async () => {
+    await fsWriteFile(`${userDir}/code.cpp`, text[4]);
+    let diff = await GitHandler.diffStaged(username);
+    chai.assert(diff === '');
+    await git(userDir).add('./*');
+    diff = await GitHandler.diffStaged(username);
+    chai.assert(diff !== '');
+  });
+
+  it('test commit', async () => {
+    await fsWriteFile(`${userDir}/code.cpp`, text[5]);
+    await git(userDir).add('./*');
+    await GitHandler.commit(username, text[5]);
+    const logResult = await git(userDir).log();
+    const latestCommit = logResult.latest;
+    chai.assert(latestCommit.message.includes(text[5]));
+  });
+
+  it('test getFile', async () => {
+    await fsWriteFile(`${userDir}/code.cpp`, text[6]);
+    const log = await git(userDir).log();
+    let file = await GitHandler.getFile(username, 'code.cpp', log.latest.hash);
+    chai.assert(file === text[5]);
+    file = await GitHandler.getFile(username);
+    chai.assert(file === text[6]);
+  });
+
+  it('test setFile', async () => {
+    await GitHandler.setFile(username, text[7]);
+    const catResult = await shell.cat(`${userDir}/code.cpp`);
+    const result = catResult.stdout;
+    chai.assert(result === text[7]);
+  });
+});