53 lines
1.5 KiB
JavaScript
53 lines
1.5 KiB
JavaScript
const test = require('tape');
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const stableSort = require('./stableSort.js');
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test('Testing stableSort', (t) => {
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//For more information on all the methods supported by tape
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//Please go to https://github.com/substack/tape
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t.true(typeof stableSort === 'function', 'stableSort is a Function');
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//t.deepEqual(stableSort(args..), 'Expected');
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//t.equal(stableSort(args..), 'Expected');
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//t.false(stableSort(args..), 'Expected');
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//t.throws(stableSort(args..), 'Expected');
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// sorted by weight
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const input = [
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{ height: 100, weight: 80 },
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{ height: 90, weight: 90 },
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{ height: 70, weight: 95 },
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{ height: 100, weight: 100 },
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{ height: 80, weight: 110 },
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{ height: 110, weight: 115 },
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{ height: 100, weight: 120 },
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{ height: 70, weight: 125 },
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{ height: 70, weight: 130 },
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{ height: 100, weight: 135 },
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{ height: 75, weight: 140 },
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{ height: 70, weight: 140 }
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]
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// sorted by height (using stableSort)
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const target = [
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{ height: 70, weight: 95 },
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{ height: 70, weight: 125 },
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{ height: 70, weight: 130 },
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{ height: 70, weight: 140 },
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{ height: 75, weight: 140 },
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{ height: 80, weight: 110 },
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{ height: 90, weight: 90 },
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{ height: 100, weight: 80 },
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{ height: 100, weight: 100 },
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{ height: 100, weight: 120 },
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{ height: 100, weight: 135 },
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{ height: 110, weight: 115 }
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]
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const compare = (a, b) => a.height - b.height;
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// stable
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t.deepEqual(stableSort(input, compare), target);
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// unstable
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t.notDeepEqual(input.sort(compare), target);
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t.end();
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}); |