/
cosmicConfigTransformer.test.js
executable file
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/
cosmicConfigTransformer.test.js
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const path = require('path');
const cosmicConfigTransformer = require('../../../src/config/cosmicConfigTransformer');
const applyExtendsIfSpecified = require('../../../src/config/applyExtendsIfSpecified');
const applyOverrides = require('../../../src/config/applyOverrides');
jest.mock('path');
jest.mock('../../../src/config/applyExtendsIfSpecified');
jest.mock('../../../src/config/applyOverrides');
describe('cosmicConfigTransformer Unit Tests', () => {
describe('transform method', () => {
describe('no cosmiconfigResult', () => {
test('null should be returned', () => {
const cwd = 'cwd';
const configBaseDirectory = 'configBaseDirectory';
const transformer = cosmicConfigTransformer.transform(cwd, configBaseDirectory);
const actual = transformer(null);
expect(actual).toBeNull();
});
});
describe('valid cosmiconfigResult - configBaseDirectory', () => {
test('null should be returned', () => {
path.dirname.mockReturnValue('./myConfig');
applyExtendsIfSpecified.mockReturnValue({
rules: 'rules',
overrides: 'overrides'
});
applyOverrides.mockReturnValue('appliedOverrides');
const cwd = 'cwd';
const configBaseDirectory = 'configBaseDirectory';
const transformer = cosmicConfigTransformer.transform(cwd, configBaseDirectory);
const cosmiconfigResult = {
config: {
property: 'value'
},
filepath: 'myFilePath'
};
const actual = transformer(cosmiconfigResult);
expect(actual).toStrictEqual('appliedOverrides');
expect(path.dirname).toHaveBeenCalledTimes(0);
expect(applyExtendsIfSpecified).toHaveBeenCalledTimes(1);
expect(applyExtendsIfSpecified).toHaveBeenCalledWith(cosmiconfigResult.config, cosmiconfigResult.filepath);
expect(applyOverrides).toHaveBeenCalledTimes(1);
expect(applyOverrides).toHaveBeenCalledWith(cwd, cosmiconfigResult.filepath, 'rules', 'overrides');
});
});
describe('valid cosmiconfigResult - no configBaseDirectory', () => {
test('null should be returned', () => {
path.dirname.mockReturnValue('./myConfig');
applyExtendsIfSpecified.mockReturnValue({
rules: 'rules',
overrides: 'overrides'
});
applyOverrides.mockReturnValue('appliedOverrides');
const cwd = 'cwd';
const configBaseDirectory = null;
const transformer = cosmicConfigTransformer.transform(cwd, configBaseDirectory);
const cosmiconfigResult = {
config: {
property: 'value'
},
filepath: 'myFilePath'
};
const actual = transformer(cosmiconfigResult);
expect(actual).toStrictEqual('appliedOverrides');
expect(path.dirname).toHaveBeenCalledTimes(1);
expect(path.dirname).toHaveBeenCalledWith(cosmiconfigResult.filepath);
expect(applyExtendsIfSpecified).toHaveBeenCalledTimes(1);
expect(applyExtendsIfSpecified).toHaveBeenCalledWith(cosmiconfigResult.config, cosmiconfigResult.filepath);
expect(applyOverrides).toHaveBeenCalledTimes(1);
expect(applyOverrides).toHaveBeenCalledWith(cwd, cosmiconfigResult.filepath, 'rules', 'overrides');
});
});
});
});