test: add tests for the matchers

Author: MattAgn

src/helpers/matchers/__tests__/matchArrayValue.test.ts

@@ -0,0 +1,34 @@
+import { matchArrayValue } from '../matchArrayValue';
+
+test('returns true given 2 identical prop and matcher', () => {
+  expect(matchArrayValue(['banana'], ['banana'])).toEqual(true);
+  expect(matchArrayValue(['banana', 'apple'], ['banana', 'apple'])).toEqual(
+    true
+  );
+});
+
+test('returns true when the prop contains all the values of the matcher', () => {
+  expect(
+    matchArrayValue(['banana', 'apple', 'orange'], ['banana', 'orange'])
+  ).toEqual(true);
+});
+
+test('returns false when the prop does not contain all the values of the matcher', () => {
+  expect(
+    matchArrayValue(['banana', 'apple', 'orange'], ['banana', 'pear'])
+  ).toEqual(false);
+});
+
+test('returns false when prop is undefined', () => {
+  expect(matchArrayValue(undefined, ['banana'])).toEqual(false);
+});
+
+test('returns false when the matcher is an empty list', () => {
+  expect(matchArrayValue(['banana'], [])).toEqual(false);
+});
+
+test('returns false given 2 different prop and matchers', () => {
+  expect(matchArrayValue(['banana', 'apple'], ['banana', 'orange'])).toEqual(
+    false
+  );
+});

src/helpers/matchers/__tests__/matchObject.test.ts

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+import { matchObject } from '../matchObject';
+
+test('returns true given 2 identical objects', () => {
+  expect(matchObject({ fruit: 'banana' }, { fruit: 'banana' })).toEqual(true);
+  expect(
+    matchObject(
+      { fruit: 'banana', isRipe: true },
+      { fruit: 'banana', isRipe: true }
+    )
+  ).toEqual(true);
+});
+
+test('returns false when one of the param is an empty object', () => {
+  expect(matchObject({}, { fruit: 'banana' })).toEqual(false);
+  expect(matchObject({ fruit: 'banana' }, {})).toEqual(false);
+});
+
+test('returns false given an undefined prop', () => {
+  expect(matchObject(undefined, { fruit: 'banana' })).toEqual(false);
+});
+
+test('returns false given 2 different non empty objects', () => {
+  expect(matchObject({ fruit: 'banana' }, { fruits: 'banana' })).toEqual(false);
+  expect(matchObject({ fruit: 'banana' }, { fruit: 'orange' })).toEqual(false);
+  expect(
+    matchObject(
+      { fruit: 'banana', isRipe: true },
+      { fruit: 'banana', ripe: true }
+    )
+  ).toEqual(false);
+});

src/helpers/matchers/__tests__/matchStringValue.test.ts

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+import { matchStringValue } from '../matchStringValue';
+
+test.each`
+  prop         | matcher     | expectedResult
+  ${'hey'}     | ${'hey'}    | ${true}
+  ${'hey'}     | ${/hey/}    | ${true}
+  ${'hey'}     | ${'heyyyy'} | ${false}
+  ${'hey'}     | ${/heyyy/}  | ${false}
+  ${undefined} | ${'hey'}    | ${false}
+`(
+  'returns $expectedResult given prop $prop and matcher $matcher',
+  ({ prop, matcher, expectedResult }) => {
+    expect(matchStringValue(prop, matcher)).toEqual(expectedResult);
+  }
+);