Module-Structuring-and-Testing-Data/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js at fcd1c540e92c3e27ce32ac3137ba46fa48beadce · CodeYourFuture/Module-Structuring-and-Testing-Data · GitHub

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// This statement loads the isProperFraction function you wrote in the implement directory.
// We will use the same function, but write tests for it using Jest in this file.
const isProperFraction = require("../implement/2-is-proper-fraction");

test("should return true for a proper fraction", () => {
  expect(isProperFraction(2, 3)).toEqual(true);
});

// Case 2: Identify Improper Fractions:
test("should return false for a improper fraction", () => {
  expect(isProperFraction(4, 3)).toEqual(false);
});

// Case 3: Identify Negative Fractions:
test("should return true for a negative numerator proper fraction", () => {
  expect(isProperFraction(-2, 3)).toEqual(true);
});
test("should return true for a negative denominator proper fraction", () => {
  expect(isProperFraction(2, -3)).toEqual(true);
});
test("should return true for both negative numerator and denominator proper fraction", () => {
  expect(isProperFraction(-2, -3)).toEqual(true);
});

// Case 4: Identify Equal Numerator and Denominator:
test("should return false for equal numerator and denominator", () => {
  expect(isProperFraction(2, 2)).toEqual(false);
});