30 lines
966 B
TypeScript
30 lines
966 B
TypeScript
// import { errorValueToString } from "../../src/js/index";
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import { testRun } from "./TestHelpers";
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import * as fc from "fast-check";
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describe("Scalar manipulation is well-modeled by javascript math", () => {
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test("in the case of natural logarithms", () => {
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fc.assert(
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fc.property(fc.nat(), (x) => {
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let squiggleString = `log(${x})`;
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let squiggleResult = testRun(squiggleString);
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if (x == 0) {
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expect(squiggleResult.value).toEqual(-Infinity);
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} else {
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expect(squiggleResult.value).toEqual(Math.log(x));
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}
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})
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);
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});
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test("in the case of addition (with assignment)", () => {
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fc.assert(
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fc.property(fc.integer(), fc.integer(), fc.integer(), (x, y, z) => {
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let squiggleString = `x = ${x}; y = ${y}; z = ${z}; x + y + z`;
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let squiggleResult = testRun(squiggleString);
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expect(squiggleResult.value).toBeCloseTo(x + y + z);
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})
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);
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});
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});
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