Received calls check should deep-compare arguments #48

it("it should get the correct object", async () => {
  const obj = {
    action: (value: { prop: string }) => `wow ${value.prop}`
  };

  const objMock = Substitute.for<typeof obj>();
  const arg = { prop: "wow" };
  
  objMock.action(arg);

  // This test passes
  objMock.received().action(arg);

  /* This fails with:
  Expected 1 or more calls to the method action2 with arguments [{ prop: 'wow' }], but received none of such calls.
    All calls received to method action2:
    -> call with arguments [{ prop: 'wow' }]
  */
  objMock.received().action({ prop: "wow" });
});