setup-go/__tests__/cache-utils.test.ts

import * as exec from '@actions/exec';
import * as cache from '@actions/cache';
import * as core from '@actions/core';
import * as cacheUtils from '../src/cache-utils';
import {
  getCurrentPackageManager,
  PackageManagerInfo
} from '../src/package-managers';
import fs, {Dirent, PathLike} from 'fs';
import {getPackageManagerInfo} from '../src/cache-utils';
import MockInstance = jest.MockInstance;

describe('getCommandOutput', () => {
  //Arrange
  let getExecOutputSpy = jest.spyOn(exec, 'getExecOutput');

  it('should return trimmed stdout in case of successful exit code', async () => {
    //Arrange
    const stdoutResult = ' stdout ';
    const trimmedStdout = stdoutResult.trim();

    getExecOutputSpy.mockImplementation((commandLine: string) => {
      return new Promise<exec.ExecOutput>(resolve => {
        resolve({exitCode: 0, stdout: stdoutResult, stderr: ''});
      });
    });

    //Act + Assert
    return cacheUtils
      .getCommandOutput('command')
      .then(data => expect(data).toBe(trimmedStdout));
  });

  it('should return error in case of unsuccessful exit code', async () => {
    //Arrange
    const stderrResult = 'error message';

    getExecOutputSpy.mockImplementation((commandLine: string) => {
      return new Promise<exec.ExecOutput>(resolve => {
        resolve({exitCode: 10, stdout: '', stderr: stderrResult});
      });
    });

    //Act + Assert
    expect(async () => {
      await cacheUtils.getCommandOutput('command');
    }).rejects.toThrow();
  });
});

describe('getPackageManagerInfo', () => {
  it('should return package manager info in case of valid package manager name', async () => {
    //Arrange
    const packageManagerName = 'default';
    const expectedResult = {
      dependencyFilePattern: 'go.sum',
      cacheFolderCommandList: ['go env GOMODCACHE', 'go env GOCACHE']
    };

    //Act + Assert
    return cacheUtils
      .getPackageManagerInfo(packageManagerName)
      .then(data => expect(data).toEqual(expectedResult));
  });

  it('should throw the error in case of invalid package manager name', async () => {
    //Arrange
    const packageManagerName = 'invalidName';

    //Act + Assert
    expect(async () => {
      await cacheUtils.getPackageManagerInfo(packageManagerName);
    }).rejects.toThrow();
  });
});

describe('getCacheDirectoryPath', () => {
  //Arrange
  let getExecOutputSpy = jest.spyOn(exec, 'getExecOutput');

  const validPackageManager: PackageManagerInfo = {
    dependencyFilePattern: 'go.sum',
    cacheFolderCommandList: ['go env GOMODCACHE', 'go env GOCACHE']
  };

  it('should return path to the cache folders which specified package manager uses', async () => {
    //Arrange
    getExecOutputSpy.mockImplementation((commandLine: string) => {
      return new Promise<exec.ExecOutput>(resolve => {
        resolve({exitCode: 0, stdout: 'path/to/cache/folder', stderr: ''});
      });
    });

    const expectedResult = ['path/to/cache/folder', 'path/to/cache/folder'];

    //Act + Assert
    return cacheUtils
      .getCacheDirectoryPath(validPackageManager)
      .then(data => expect(data).toEqual(expectedResult));
  });

  it('should return path to the cache folder if one command return empty str', async () => {
    //Arrange
    getExecOutputSpy.mockImplementationOnce((commandLine: string) => {
      return new Promise<exec.ExecOutput>(resolve => {
        resolve({exitCode: 0, stdout: 'path/to/cache/folder', stderr: ''});
      });
    });

    getExecOutputSpy.mockImplementationOnce((commandLine: string) => {
      return new Promise<exec.ExecOutput>(resolve => {
        resolve({exitCode: 0, stdout: '', stderr: ''});
      });
    });

    const expectedResult = ['path/to/cache/folder'];

    //Act + Assert
    return cacheUtils
      .getCacheDirectoryPath(validPackageManager)
      .then(data => expect(data).toEqual(expectedResult));
  });

  it('should throw if the both commands return empty str', async () => {
    getExecOutputSpy.mockImplementation((commandLine: string) => {
      return new Promise<exec.ExecOutput>(resolve => {
        resolve({exitCode: 10, stdout: '', stderr: ''});
      });
    });

    //Act + Assert
    expect(async () => {
      await cacheUtils.getCacheDirectoryPath(validPackageManager);
    }).rejects.toThrow();
  });

  it('should throw if the specified package name is invalid', async () => {
    getExecOutputSpy.mockImplementation((commandLine: string) => {
      return new Promise<exec.ExecOutput>(resolve => {
        resolve({exitCode: 10, stdout: '', stderr: 'Error message'});
      });
    });

    //Act + Assert
    expect(async () => {
      await cacheUtils.getCacheDirectoryPath(validPackageManager);
    }).rejects.toThrow();
  });
});

describe('isCacheFeatureAvailable', () => {
  //Arrange
  let isFeatureAvailableSpy = jest.spyOn(cache, 'isFeatureAvailable');
  let warningSpy = jest.spyOn(core, 'warning');

  it('should return true when cache feature is available', () => {
    //Arrange
    isFeatureAvailableSpy.mockImplementation(() => {
      return true;
    });

    let functionResult;

    //Act
    functionResult = cacheUtils.isCacheFeatureAvailable();

    //Assert
    expect(functionResult).toBeTruthy();
  });

  it('should warn when cache feature is unavailable and GHES is not used ', () => {
    //Arrange
    isFeatureAvailableSpy.mockImplementation(() => {
      return false;
    });

    process.env['GITHUB_SERVER_URL'] = 'https://github.com';

    let warningMessage =
      'The runner was not able to contact the cache service. Caching will be skipped';

    //Act
    cacheUtils.isCacheFeatureAvailable();

    //Assert
    expect(warningSpy).toHaveBeenCalledWith(warningMessage);
  });

  it('should return false when cache feature is unavailable', () => {
    //Arrange
    isFeatureAvailableSpy.mockImplementation(() => {
      return false;
    });

    process.env['GITHUB_SERVER_URL'] = 'https://github.com';

    let functionResult;

    //Act
    functionResult = cacheUtils.isCacheFeatureAvailable();

    //Assert
    expect(functionResult).toBeFalsy();
  });

  it('should warn when cache feature is unavailable and GHES is used', () => {
    //Arrange
    isFeatureAvailableSpy.mockImplementation(() => {
      return false;
    });

    process.env['GITHUB_SERVER_URL'] = 'https://nongithub.com';

    let warningMessage =
      'Cache action is only supported on GHES version >= 3.5. If you are on version >=3.5 Please check with GHES admin if Actions cache service is enabled or not.';

    //Act + Assert
    expect(cacheUtils.isCacheFeatureAvailable()).toBeFalsy();
    expect(warningSpy).toHaveBeenCalledWith(warningMessage);
  });
});

describe('isCacheEnabled', () => {
  let inputs = {} as any;
  const inSpy = jest.spyOn(core, 'getInput');
  const getBooleanInputSpy = jest.spyOn(core, 'getBooleanInput');
  const readdirSyncSpy = (jest.spyOn(
    fs,
    'readdirSync'
  ) as unknown) as MockInstance<string[], any[]>;

  beforeAll(async () => {
    inSpy.mockImplementation(name => inputs[name] || '');

    getBooleanInputSpy.mockImplementation((name, options) => {
      const trueValue = ['true', 'True', 'TRUE'];
      const falseValue = ['false', 'False', 'FALSE'];
      const val = core.getInput(name, options);
      if (trueValue.includes(val)) return true;
      if (falseValue.includes(val)) return false;
      throw new TypeError(
        `Input does not meet YAML 1.2 "Core Schema" specification: ${name}\n` +
          `Support boolean input list: \`true | True | TRUE | false | False | FALSE\``
      );
    });
  });

  afterEach(() => {
    jest.clearAllMocks();
    inputs = {};
  });

  afterAll(async () => {
    jest.restoreAllMocks();
  }, 100000);

  it('should return false if `cache` input set to false', async () => {
    inputs = {cache: 'false'};

    const cacheEnabled = await cacheUtils.isCacheEnabled();
    expect(cacheEnabled).toBeFalsy();
  });

  it('should return false if `cache` input set to true', async () => {
    inputs = {cache: 'true'};

    const cacheEnabled = await cacheUtils.isCacheEnabled();
    expect(cacheEnabled).toBeTruthy();
  });

  it('should returns false if `cache` input unset and no dependencies file', async () => {
    inputs = {};
    process.env['GITHUB_WORKSPACE'] = '/tmp';

    const packageManager = getCurrentPackageManager();
    const packageManagerInfo = await getPackageManagerInfo(packageManager);
    readdirSyncSpy.mockImplementation(() => [
      packageManagerInfo.dependencyFilePattern
    ]);

    await expect(cacheUtils.isCacheEnabled()).resolves.toBeTruthy();
  });
});