Add tests for didNotReceive (#75)

* Add tests for didNotReceive #72

* Add t.pass()

* Swap didNotReceived calls

spec/issues/72.test.ts

@@ -0,0 +1,62 @@
+import test from "ava";
+
+import { Substitute, Arg } from "../../src/index";
+
+interface Calculator {
+  add(a: number, b: number): number;
+  subtract(a: number, b: number): number;
+  divide(a: number, b: number): number;
+
+  isEnabled: boolean;
+}
+
+test("check didNotReceive after not mocking and not calling a method", t => {
+  const calculator = Substitute.for<Calculator>();
+
+  // Do not mock and do not call
+  calculator.didNotReceive().add(Arg.any(), Arg.any());
+  calculator.didNotReceive().add(1, Arg.any());
+  calculator.didNotReceive().add(1, 2);
+
+  t.pass();
+});
+
+test("check didNotReceive after not mocking but calling a method", t => {
+  const calculator = Substitute.for<Calculator>();
+
+  // Do not mock, but call
+  calculator.add(1, 2);
+
+  calculator.didNotReceive().add(Arg.any(), Arg.any());
+  calculator.didNotReceive().add(1, Arg.any());
+  calculator.didNotReceive().add(1, 2);
+
+  t.pass();
+});
+
+test("check didNotReceive after mocking but not calling a method", t => {
+  const calculator = Substitute.for<Calculator>();
+
+  // Mock but do not call
+  calculator.add(1, 2).returns(3);
+
+  calculator.didNotReceive().add(Arg.any(), Arg.any());
+  calculator.didNotReceive().add(1, Arg.any());
+  calculator.didNotReceive().add(1, 2);
+
+  t.pass();
+});
+
+test("check didNotReceive after mocking and calling a method", t => {
+  const calculator = Substitute.for<Calculator>();
+
+  // Mock and call
+  calculator.add(1, 2).returns(3);
+  calculator.add(1, 2);
+
+  calculator.didNotReceive().add(Arg.any(), Arg.any());
+  calculator.didNotReceive().add(1, Arg.any());
+  calculator.didNotReceive().add(1, 2);
+
+  t.pass();
+});