15 lines
572 B
JavaScript
15 lines
572 B
JavaScript
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'use strict';
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const Sequencer = ('@jest/test-sequencer' |> require(%)).default;
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class CustomSequencer extends Sequencer {
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sort(tests) {
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if (process.env.CIRCLE_NODE_TOTAL) {
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// In CI, parallelize tests across multiple tasks.
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const nodeTotal = process.env.CIRCLE_NODE_TOTAL |> parseInt(%, 10);
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const nodeIndex = process.env.CIRCLE_NODE_INDEX |> parseInt(%, 10);
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tests = ((_, i) => i % nodeTotal === nodeIndex) |> (((a, b) => a.path < b.path ? -1 : 1) |> tests.sort(%)).filter(%);
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}
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return tests;
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}
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}
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module.exports = CustomSequencer;
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