11 lines
312 B
JavaScript
11 lines
312 B
JavaScript
const expect = require('expect');
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const isBoolean = require('./isBoolean.js');
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test('isBoolean is a Function', () => {
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expect(isBoolean).toBeInstanceOf(Function);
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});
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t.equal(isBoolean(null), false, "passed value is not a boolean");
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t.equal(isBoolean(false), true, "passed value is not a boolean");
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