Function toHavePropertyMatcher

Ensures that property at provided keyPath exists on the object and optionally checks that property is equal to the expected. Equality is checked recursively, similarly to expect(value).toEqual(expected).

Usage

const value = {
  a: {
    b: [42],
  },
  c: true,
};
expect(value).toHaveProperty('a.b');
expect(value).toHaveProperty('a.b', [42]);
expect(value).toHaveProperty('a.b[0]', 42);
expect(value).toHaveProperty('c');
expect(value).toHaveProperty('c', true);
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