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const index = require('./index');

describe('index module', () => {

it('rejects if the template cannot be found', () => {

const OPTIONS = {};

const RANGE = 'since..to';

return expect(index(OPTIONS, RANGE, 'missing-template')).rejects.toThrow(/template file/);

});

it('rejects if the configuration in invalid', () => {

const OPTIONS = { f: 'missing-configuration' };

const RANGE = 'since..to';

return expect(index(OPTIONS, RANGE, 'markdown')).rejects.toThrow(/configuration file/);

});

it('rejects if git log range is invalid', () => {

const OPTIONS = {};

const RANGE = 'since..to';

return expect(index(OPTIONS, RANGE, 'markdown')).rejects.toThrow(/git log exited/i);

});

it('rejects if the external script fails', () => {

const OPTIONS = {

script: 'lib/__tests__/scripts/throws.js',

branch: 'testing-branch',

};

const RANGE = '7d27899..28b863e';

return expect(index(OPTIONS, RANGE, 'markdown')).rejects.toThrow(/processing external script/i);

});

it('rejects if the rendering template causes errors', () => {

const OPTIONS = {

script: 'lib/__tests__/scripts/rename.js',

branch: 'testing-branch',

};

const RANGE = '7d27899..28b863e';

return expect(index(OPTIONS, RANGE, 'lib/__tests__/templates/invalid.ejs')).rejects.toThrow(/broken is not defined/i);

});

it('resolves with the rendered template', () => {

const OPTIONS = {

branch: 'testing-branch',

};

const RANGE = '7d27899..28b863e';

return expect(index(OPTIONS, RANGE, 'markdown')).resolves.toMatch(/__2.1.0__/i);

});

it('resolves with the postprocessing function', () => {

const OPTIONS = {

script: (data, callback) => {

callback({

foo: "bar"

});

},

branch: 'testing-branch'

}

const RANGE = '7d27899..28b863e';

return expect(index(OPTIONS, RANGE, 'lib/__tests__/templates/custom.ejs')).resolves.toMatch(/bar/i);

})

it('resolves with the throw postprocessing function', () => {

const OPTIONS = {

script: () => {

throw Error('from script');

},

branch: 'testing-branch'

}

const RANGE = '7d27899..28b863e';

return expect(index(OPTIONS, RANGE, 'markdown')).rejects.toThrow(/processing external function/i);

})

});