45 lines
1.1 KiB
TypeScript
45 lines
1.1 KiB
TypeScript
import { run, SquiggleValue } from "../../src/js/index";
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export function testRun(x: string) {
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const { result, bindings } = run(x); // FIXME - set environment
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// x,
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// bindings,
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// {
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// sampleCount: 1000,
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// xyPointLength: 100,
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// },
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// imports
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// );
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if (result.tag === "Ok") {
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return result.value;
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} else {
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throw new Error(
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`Expected squiggle expression to evaluate but got error: ${result.value}`
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);
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}
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}
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export function failDefault() {
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expect("be reached").toBe("codepath should never");
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}
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/**
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* This appears also in `TestHelpers.res`. According to https://www.math.net/percent-error, it computes
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* absolute error when numerical stability concerns make me not want to compute relative error.
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* */
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export function expectErrorToBeBounded(
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received: number,
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expected: number,
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epsilon: number,
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digits: number
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) {
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let distance = Math.abs(received - expected);
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let expectedAbs = Math.abs(expected);
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let normalizingDenom = Math.max(expectedAbs, 1);
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let error = distance / normalizingDenom;
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expect(Math.round(10 ** digits * error) / 10 ** digits).toBeLessThanOrEqual(
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epsilon
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);
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}
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