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54 lines
1.0 KiB
54 lines
1.0 KiB
6 years ago
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const isEq = require('@codefeathers/iseq');
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const constants = {
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pass: 'pass',
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fail: 'fail',
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};
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const _assert = (bool, assertion) => bool ? Promise.resolve() : Promise.reject(assertion);
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const stringify = obj =>
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typeof obj === 'object'
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? JSON.stringify(obj)
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: obj;
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const be = a => {
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const fn = b => _assert(a === b, `${a} is not equal to ${b}`);
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fn.deepEqual = b => _assert(isEq(a, b), `${stringify(a)} is not deeply equal to ${stringify(b)}`);
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fn.true = () => _assert(a === true, `${a} is not true`);
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return fn;
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};
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const expect = thing => ({
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to: {
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be: be(thing),
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},
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});
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const runTests = tests => tests.map(test =>
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test.test()
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.then(() => ({ description: test.description, result: constants.pass }))
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.catch(e => ({ description: test.description, result: constants.fail, error: e }))
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);
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class Gunner {
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constructor () {
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this.tests = [];
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}
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test (description, test) {
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this.tests.push({
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description,
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test: () => test(expect),
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});
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}
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run () {
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return Promise.all(runTests(this.tests));
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}
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}
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module.exports = Gunner;
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