87 lines
2.5 KiB
TypeScript
87 lines
2.5 KiB
TypeScript
import { run, GenericDist, resultMap } from "../src/js/index";
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let testRun = (x: string) => {
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let result = run(x);
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if (result.tag == "Ok") {
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return { tag: "Ok", value: result.value.exports };
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} else {
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return result;
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}
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};
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describe("Simple calculations and results", () => {
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test("mean(normal(5,2))", () => {
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expect(testRun("mean(normal(5,2))")).toEqual({
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tag: "Ok",
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value: [{ NAME: "Float", VAL: 5 }],
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});
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});
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test("10+10", () => {
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let foo = testRun("10 + 10");
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expect(foo).toEqual({ tag: "Ok", value: [{ NAME: "Float", VAL: 20 }] });
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});
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});
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describe("Log function", () => {
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test("log(1) = 0", () => {
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let foo = testRun("log(1)");
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expect(foo).toEqual({ tag: "Ok", value: [{ NAME: "Float", VAL: 0 }] });
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});
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});
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describe("Multimodal too many weights error", () => {
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test("mm(0,0,[0,0,0])", () => {
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let foo = testRun("mm(0,0,[0,0,0])");
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expect(foo).toEqual({
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tag: "Error",
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value: "Function multimodal error: Too many weights provided",
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});
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});
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});
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describe("GenericDist", () => {
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//It's important that sampleCount is less than 9. If it's more, than that will create randomness
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let env = { sampleCount: 8, xyPointLength: 100 };
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let dist = new GenericDist(
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{ tag: "SampleSet", value: [3, 4, 5, 6, 6, 7, 10, 15, 30] },
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env
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);
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let dist2 = new GenericDist(
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{ tag: "SampleSet", value: [20, 22, 24, 29, 30, 35, 38, 44, 52] },
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env
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);
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test("mean", () => {
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expect(dist.mean().value).toBeCloseTo(3.737);
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});
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test("pdf", () => {
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expect(dist.pdf(5.0).value).toBeCloseTo(0.0431);
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});
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test("cdf", () => {
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expect(dist.cdf(5.0).value).toBeCloseTo(0.155);
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});
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test("inv", () => {
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expect(dist.inv(0.5).value).toBeCloseTo(9.458);
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});
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test("toPointSet", () => {
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expect(
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resultMap(dist.toPointSet(), (r: GenericDist) => r.toString()).value.value
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).toBe("Point Set Distribution");
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});
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test("toSparkline", () => {
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expect(dist.toSparkline(20).value).toBe("▁▁▃▅███▆▄▃▂▁▁▂▂▃▂▁▁▁");
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});
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test("algebraicAdd", () => {
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expect(
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resultMap(dist.algebraicAdd(dist2), (r: GenericDist) => r.toSparkline(20))
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.value.value
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).toBe("▁▁▂▄▆████▇▆▄▄▃▃▃▂▁▁▁");
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});
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test("pointwiseAdd", () => {
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expect(
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resultMap(dist.pointwiseAdd(dist2), (r: GenericDist) => r.toSparkline(20))
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.value.value
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).toBe("▁▂▅██▅▅▅▆▇█▆▅▃▃▂▂▁▁▁");
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});
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});
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