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Add some more tests

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This commit is contained in:
thepaperpilot 2023-04-02 15:16:47 -05:00
parent 0c1410a1c1
commit fb360c72c5
1 changed files with 36 additions and 4 deletions
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40
tests/game/formulas.test.ts
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@ -571,7 +571,7 @@ describe("Integrating", () => {
describe.todo("Integrable formulas integrate correctly"); describe.todo("Integrable formulas integrate correctly");
test("Integrating nested formulas", () => { test("Integrating nested formulas", () => {
const formula = Formula.add(variable, constant).times(constant).pow(2).times(30); const formula = Formula.add(variable, constant).times(constant).pow(2).times(30).add(10);
const actualCost = new Array(10) const actualCost = new Array(10)
.fill(null) .fill(null)
.reduce((acc, _, i) => acc.add(formula.evaluate(i)), new Decimal(0)); .reduce((acc, _, i) => acc.add(formula.evaluate(i)), new Decimal(0));
@ -588,6 +588,24 @@ describe("Integrating", () => {
).toBeLessThan(0.1); ).toBeLessThan(0.1);
}); });
test("Integrating nested formulas with overidden variable", () => {
const formula = Formula.add(variable, constant).times(constant).pow(2).times(30).add(10);
const actualCost = new Array(20)
.fill(null)
.reduce((acc, _, i) => acc.add(formula.evaluate(i)), new Decimal(0));
// Check if the calculated cost is within 10% of the actual cost,
// because this is an approximation
expect(
Decimal.sub(
actualCost,
Decimal.add(formula.evaluateIntegral(20), formula.calculateConstantOfIntegration())
)
.abs()
.div(actualCost)
.toNumber()
).toBeLessThan(0.1);
});
test("Integrating nested complex formulas", () => { test("Integrating nested complex formulas", () => {
const formula = Formula.pow(1.05, variable).times(100).pow(0.5); const formula = Formula.pow(1.05, variable).times(100).pow(0.5);
expect(() => formula.evaluateIntegral()).toThrow(); expect(() => formula.evaluateIntegral()).toThrow();
@ -982,9 +1000,23 @@ describe("Custom Formulas", () => {
).compare_tolerance(10)); ).compare_tolerance(10));
}); });
describe.todo("Formula as input"); describe("Formula as input", () => {
let customFormula: GenericFormula;
describe.todo("Determines invertibility etc. correctly"); beforeAll(() => {
customFormula = new Formula({
inputs: [variable],
evaluate: v1 => v1,
invert: value => value,
integrate: (stack, v1) => v1.getIntegralFormula(stack)
});
});
test("Evaluate correctly", () =>
expect(customFormula.add(10).evaluate()).compare_tolerance(11));
test("Invert correctly", () =>
expect(customFormula.add(10).invert(20)).compare_tolerance(10));
test("Integrate correctly", () =>
expect(customFormula.add(10).evaluateIntegral(10)).compare_tolerance(20));
});
}); });
describe("Buy Max", () => { describe("Buy Max", () => {