Improve code quality and write tests

__tests__/utils.test.ts

@@ -0,0 +1,93 @@
+import * as fs from 'fs';
+import * as path from 'path';
+import * as utils from '../src/utils';
+import * as pecl from '../src/pecl';
+
+let valid_extensions = ['xdebug', 'pcov'];
+jest.mock('../src/pecl', () => ({
+  checkPECLExtension: jest.fn().mockImplementation(extension => {
+    return valid_extensions.indexOf(extension) !== -1;
+  })
+}));
+
+async function cleanup(path: string): Promise<void> {
+  fs.unlink(path, error => {
+    if (error) {
+      console.log(error);
+    }
+  });
+}
+
+describe('Utils tests', () => {
+  it('checking getInput', async () => {
+    process.env['test'] = 'setup-php';
+    expect(await utils.getInput('test', false)).toBe('setup-php');
+    expect(await utils.getInput('DoesNotExist', false)).toBe('');
+  });
+
+  it('checking asyncForEach', async () => {
+    let array: Array<number> = [1, 2, 3, 4];
+    let sum: number = 0;
+    await utils.asyncForEach(array, function(num: number): void {
+      sum += num;
+    });
+    expect(sum).toBe(10);
+  });
+
+  it('checking readScripts', async () => {
+    let rc: string = fs.readFileSync(
+      path.join(__dirname, '../src/7.4.sh'),
+      'utf8'
+    );
+    let darwin: string = fs.readFileSync(
+      path.join(__dirname, '../src/darwin.sh'),
+      'utf8'
+    );
+    let linux: string = fs.readFileSync(
+      path.join(__dirname, '../src/linux.sh'),
+      'utf8'
+    );
+    let win32: string = fs.readFileSync(
+      path.join(__dirname, '../src/win32.ps1'),
+      'utf8'
+    );
+    expect(rc).toBe(await utils.readScript('darwin.sh', '7.4', 'darwin'));
+    expect(darwin).toBe(await utils.readScript('darwin.sh', '7.3', 'darwin'));
+    expect(linux).toBe(await utils.readScript('linux.sh', '7.3', 'linux'));
+    expect(win32).toBe(await utils.readScript('win32.ps1', '7.3', 'win32'));
+  });
+
+  it('checking writeScripts', async () => {
+    let testString: string = 'sudo apt-get install php';
+    await utils.writeScript('test.sh', '10', testString);
+    await fs.readFile(path.join(__dirname, '../10test.sh'), function(
+      error: any,
+      data: Buffer
+    ) {
+      expect(testString).toBe(data.toString());
+    });
+    await cleanup('./10test.sh');
+  });
+
+  it('checking extensionArray', async () => {
+    expect(await utils.extensionArray('a, b, php_c, php-d')).toEqual([
+      'a',
+      'b',
+      'c',
+      'd'
+    ]);
+  });
+
+  it('checking INIArray', async () => {
+    expect(await utils.INIArray('a=1, b=2, c=3')).toEqual([
+      'a=1',
+      'b=2',
+      'c=3'
+    ]);
+  });
+
+  it('checking checkPECLExtension', async () => {
+    expect(await pecl.checkPECLExtension('extensionDoesNotExist')).toBe(false);
+    expect(await pecl.checkPECLExtension('xdebug')).toBe(true);
+  });
+});