public OverloadSpec()
{
Describe("Method with overloads", () =>
{
It("should have all overloads covered by the one spy.", () =>
{
var spy = Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.PositiveOne)).And.ReturnValues(3, 2, 1);
Expect(TestSubject.PositiveOne()).ToBe(3);
Expect(TestSubject.PositiveOne(0)).ToBe(2);
Expect(TestSubject.PositiveOne(0)).ToBe(1);
});
It("should record calls to both overloads.", () =>
{
var spy = Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.Write));
TestSubject.Write(1, 2, 3);
TestSubject.Write(3);
TestSubject.Write(2, 3);
Expect(spy).ToHaveBeenCalledWith(2, 3);
Expect(spy).ToHaveBeenCalledWith(3);
Expect(spy).ToHaveBeenCalledWith(1, 2, 3);
});
});
}
public AdderSpec()
{
Describe <Adder>(() =>
{
It("can add a positive number to a negative number", () =>
{
var adder = new Adder();
Expect(adder.Add(-1, 1)).ToEqual(0M);
});
});
Describe <Adder>(() =>
{
List <decimal[]> specs = new List <decimal[]>
{ // n1, n2, expected
new[] { -7M, 3M, -4M },
new[] { 0M, 0M, 0M },
new[] { 999999999M, 1M, 1000000000M }
};
foreach (var spec in specs)
{
It($"can add 2 numbers ({spec[0]}, {spec[1]})", () =>
{
var adder = new Adder();
Expect(adder.Add(spec[0], spec[1])).ToEqual(spec[2]);
});
}
});
Describe <Adder>(() =>
{
It("appends to history", () =>
{
OperationHistory history = new OperationHistory();
Spy historySpy = Jaz.SpyOn(history, nameof(history.Append));
var adder = new Adder(history);
adder.Add(-1, 1);
Expect(historySpy).ToHaveBeenCalled();
});
});
Describe <Adder>(() =>
{
Describe(nameof(Adder.Add), () =>
{
It("can add a positive number to a negative number", () =>
{
var adder = new Adder();
Expect(adder.Add(-1, 1)).ToEqual(0M);
});
});
});
}
public ExternSpec()
{
Describe("Extern methods", () =>
{
It("should call through by default.", () =>
{
Expect(GetInt()).ToBe(50);
});
It("should do nothing if spied on.", () =>
{
Jaz.SpyOn(typeof(ExternSpec), nameof(GetInt));
Expect(GetInt()).ToBeDefault();
});
It("should return the configured value.", () =>
{
Jaz.SpyOn(typeof(ExternSpec), nameof(GetInt)).And.ReturnValue(1);
var result = GetInt();
Expect(result).ToBe(1);
});
It("should return the configured values in sequence.", () =>
{
Jaz.SpyOn(typeof(ExternSpec), nameof(GetInt)).And.ReturnValues(1, 2, 3, 4);
var result = GetInt();
Expect(result).ToBe(1);
result = GetInt();
Expect(result).ToBe(2);
result = GetInt();
Expect(result).ToBe(3);
result = GetInt();
Expect(result).ToBe(4);
});
It("should call through as configured.", () =>
{
Jaz.SpyOn(typeof(ExternSpec), nameof(GetInt)).And.CallThrough();
var result = GetInt();
Expect(result).ToBe(50);
});
It("should throw an exception as configured.", () =>
{
var exception = new TestException();
Jaz.SpyOn(typeof(ExternSpec), nameof(GetInt)).And.Throw(exception);
var thrown = Expect(() => GetInt()).ToThrow <TestException>();
Expect(thrown).ToBe(exception);
});
});
}
public InterfaceSpec()
{
Describe("Interface", () =>
{
Describe("implementations", () =>
{
It("should call spy wrapper on method calls.", () =>
{
var action = (Action)(() => { });
var testSubject = (ITestSubject) new TestSubject();
var actionSpy = Jaz.SpyOn(action, nameof(action.Invoke));
testSubject.Call(action);
Expect(actionSpy).ToHaveBeenCalled();
});
});
});
}
public VirtualMethodSpec()
{
Describe("Virtual Method", () =>
{
Describe("overrides", () =>
{
It("should call spy wrapper on method calls.", () =>
{
var action = (Action)(() => { });
var testSubject = (TestSubjectBase) new TestSubject();
var actionSpy = Jaz.SpyOn(action, nameof(action.Invoke));
testSubject.Call(action);
Expect(actionSpy).ToHaveBeenCalled();
});
});
});
}
public YieldReturnSpec()
{
Describe("Method using yield return", () =>
{
It("should call through by default.", () =>
{
var result = TestSubject.Method().ToList();
Expect(result).ToEqual(new[] { 1, 2, 3, 5, 7 });
});
It("should do nothing if spied on.", () =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.Method));
var result = TestSubject.Method();
Expect(result).ToBeDefault();
});
It("should call through as configured.", () =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.Method)).And.CallThrough();
var result = TestSubject.Method().ToList();
Expect(result).ToEqual(new[] { 1, 2, 3, 5, 7 });
});
It("should throw an exception as configured.", () =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.Method)).And.Throw <TestException>();
Expect(() => TestSubject.Method()).ToThrow <TestException>();
});
It("should return the configured value.", () =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.Method)).And.ReturnValue(new[] { 4, 6, 8, 9 });
var result = TestSubject.Method().ToList();
Expect(result).ToEqual(new[] { 4, 6, 8, 9 });
});
});
}
public CallsSpec()
{
Describe("Calls", () =>
{
TestSubject testSubject = null;
BeforeEach(() =>
{
testSubject = new TestSubject();
});
It("should be empty for a new spy.", () =>
{
var spy = Jaz.SpyOn(testSubject, nameof(testSubject.Action));
Expect(spy.Calls).ToBeEmpty();
});
It("should contain an ordered call log.", () =>
{
var spy = Jaz.SpyOn(testSubject, nameof(testSubject.Action));
testSubject.Action(1, 2.0, "three");
testSubject.Action(2, 1.0, null);
Expect(spy.Calls).ToEqual(new[]
{
new
{
Arguments = new object[] { 1, 2.0, "three" }
},
new
{
Arguments = new object[] { 2, 1.0, null }
}
});
});
});
}
public BehaviourSpec()
{
var testSubject = new TestSubject();
Describe("Behaviour", () =>
{
Describe("of Return Value", () =>
{
It("should return the provided return value.", () =>
{
Jaz.SpyOn(testSubject, nameof(testSubject.Func)).And.ReturnValue("abc");
var result = testSubject.Func();
Expect(result).ToBe("abc");
});
It("should cycle through return values once when using return values.", () =>
{
Jaz.SpyOn(testSubject, nameof(testSubject.Func)).And.ReturnValues("a", "b", "c");
var result = testSubject.Func();
Expect(result).ToBe("a");
result = testSubject.Func();
Expect(result).ToBe("b");
result = testSubject.Func();
Expect(result).ToBe("c");
});
});
Describe("of Call Through", () =>
{
It("should call through to the original implementation.", () =>
{
Jaz.SpyOn(testSubject, nameof(testSubject.Func)).And.CallThrough();
var result = testSubject.Func();
Expect(result).ToBe("xyz");
});
});
Describe("of Default", () =>
{
It("should return the default value of the function.", () =>
{
Jaz.SpyOn(testSubject, nameof(testSubject.Func));
var result = testSubject.Func();
Expect(result).ToBeDefault();
});
It("should have no logic executed for an action.", () =>
{
Jaz.SpyOn(testSubject, nameof(testSubject.Action));
testSubject.Action();
Expect(testSubject.Value).ToBeDefault();
});
});
Describe("of Throw", () =>
{
It("should throw the given exception.", () =>
{
var exception = new System.Exception();
Jaz.SpyOn(testSubject, nameof(testSubject.Action)).And.Throw(exception);
try
{
testSubject.Action();
Fail("Expected an exception to be thrown.");
}
catch (Exception ex)
{
if (ex != exception)
{
throw;
}
}
});
It("should throw an exception of the given type.", () =>
{
Jaz.SpyOn(testSubject, nameof(testSubject.Action)).And.Throw <Exception>();
try
{
testSubject.Action();
Fail("Expected an exception to be thrown.");
}
catch (Exception ex)
{
if (ex.Message != "Exception of type 'System.Exception' was thrown.")
{
throw;
}
}
});
});
Describe("in sequence", () =>
{
It("should execute forever if added using And.", () =>
{
Jaz.SpyOn(testSubject, nameof(testSubject.Func)).And.ReturnValue("abc");
var result = testSubject.Func();
Expect(result).ToBe("abc");
result = testSubject.Func();
Expect(result).ToBe("abc");
result = testSubject.Func();
Expect(result).ToBe("abc");
result = testSubject.Func();
Expect(result).ToBe("abc");
});
It("should clear existing behaviours if added using And.", () =>
{
var spy = Jaz.SpyOn(testSubject, nameof(testSubject.Func));
spy.And.Throw <Exception>();
spy.And.ReturnValue("abc");
var result = testSubject.Func();
Expect(result).ToBe("abc");
});
It("should execute once if added using Then.", () =>
{
Jaz.SpyOn(testSubject, nameof(testSubject.Func)).And.ReturnValue(null).Then.ReturnValue("abc");
var result = testSubject.Func();
Expect(result).ToBeDefault();
result = testSubject.Func();
Expect(result).ToBe("abc");
try
{
testSubject.Func();
Fail("Expected spy exception after running out of behaviours.");
}
catch (JazSpyException)
{
}
});
It("should execute once if Once is specified.", () =>
{
Jaz.SpyOn(testSubject, nameof(testSubject.Func)).And.ReturnValue("abc").Once();
var result = testSubject.Func();
Expect(result).ToBe("abc");
try
{
testSubject.Func();
Fail("Expected spy exception after running out of behaviours.");
}
catch (JazSpyException)
{
}
});
It("should excute twice if Twice is specified.", () =>
{
Jaz.SpyOn(testSubject, nameof(testSubject.Func)).And.ReturnValue("abc").Twice();
var result = testSubject.Func();
Expect(result).ToBe("abc");
result = testSubject.Func();
Expect(result).ToBe("abc");
try
{
testSubject.Func();
Fail("Expected spy exception after running out of behaviours.");
}
catch (JazSpyException)
{
}
});
It("should execute the number of times specified in Times.", () =>
{
Jaz.SpyOn(testSubject, nameof(testSubject.Func)).And.ReturnValue("abc").Times(3);
var result = testSubject.Func();
Expect(result).ToBe("abc");
result = testSubject.Func();
Expect(result).ToBe("abc");
result = testSubject.Func();
Expect(result).ToBe("abc");
try
{
testSubject.Func();
Fail("Expected spy exception after running out of behaviours.");
}
catch (JazSpyException)
{
}
});
It("should execute forever if Forever is specified.", () =>
{
Jaz.SpyOn(testSubject, nameof(testSubject.Func)).And.ReturnValue("abc").Forever();
var result = testSubject.Func();
Expect(result).ToBe("abc");
result = testSubject.Func();
Expect(result).ToBe("abc");
result = testSubject.Func();
Expect(result).ToBe("abc");
});
});
});
}
public ByRefSpec()
{
TestSubject testSubject = null;
Describe("Action with by ref parameter", () =>
{
float testValue = default;
BeforeEach(() =>
{
testSubject = new TestSubject();
testValue = 85.5f;
});
It("should call through by default.", () =>
{
testSubject.PercentToDecimal(ref testValue);
Expect(testValue).ToBe(0.855f);
});
It("should do nothing if spied on.", () =>
{
Jaz.SpyOn(testSubject, nameof(testSubject.PercentToDecimal));
testSubject.PercentToDecimal(ref testValue);
Expect(testValue).ToBe(85.5f);
});
It("should call through as configured.", () =>
{
Jaz.SpyOn(testSubject, nameof(testSubject.PercentToDecimal)).And.CallThrough();
testSubject.PercentToDecimal(ref testValue);
Expect(testValue).ToBe(0.855f);
});
It("should throw an exception as configured.", () =>
{
Jaz.SpyOn(testSubject, nameof(testSubject.PercentToDecimal)).And.Throw <TestException>();
Expect(() => testSubject.PercentToDecimal(ref testValue)).ToThrow <TestException>();
});
It("should change the ref parameter as configured.", () =>
{
Jaz.SpyOn(testSubject, nameof(testSubject.PercentToDecimal)).And.DoNothing().ThenChangeParameter("value", 1.0f);
testSubject.PercentToDecimal(ref testValue);
Expect(testValue).ToBe(1.0f);
});
});
Describe("Action with out parameter", () =>
{
float testValue = default;
BeforeEach(() =>
{
testSubject = new TestSubject();
testValue = 85.5f;
});
It("should call through by default.", () =>
{
testSubject.PercentToDecimalPreserve(testValue, out var output);
Expect(output).ToBe(0.855f);
});
It("should do nothing if spied on.", () =>
{
Jaz.SpyOn(testSubject, nameof(testSubject.PercentToDecimalPreserve));
testSubject.PercentToDecimalPreserve(testValue, out var output);
Expect(output).ToBeDefault();
});
It("should call through as configured.", () =>
{
Jaz.SpyOn(testSubject, nameof(testSubject.PercentToDecimalPreserve)).And.CallThrough();
testSubject.PercentToDecimalPreserve(testValue, out var output);
Expect(output).ToBe(0.855f);
});
It("should throw an exception as configured.", () =>
{
Jaz.SpyOn(testSubject, nameof(testSubject.PercentToDecimalPreserve)).And.Throw <TestException>();
Expect(() => testSubject.PercentToDecimalPreserve(testValue, out var output)).ToThrow <TestException>();
});
It("should change the ref parameter as configured.", () =>
{
Jaz.SpyOn(testSubject, nameof(testSubject.PercentToDecimalPreserve)).And.DoNothing().ThenChangeParameter("decimal", 1.0f);
testSubject.PercentToDecimalPreserve(testValue, out var output);
Expect(output).ToBe(1.0f);
});
});
public StaticMethodSpec()
{
Describe("A static action", () =>
{
BeforeEach(() =>
{
TestSubject.Value = 0;
});
It("should call through by default.", () =>
{
TestSubject.Iterate(3);
Expect(TestSubject.Value).ToBe(3);
});
It("should do nothing if spied on.", () =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.Iterate));
TestSubject.Iterate(3);
Expect(TestSubject.Value).ToBeDefault();
});
It("should call through as configured.", () =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.Iterate)).And.CallThrough();
TestSubject.Iterate(3);
Expect(TestSubject.Value).ToBe(3);
});
It("should throw an exception as configured.", () =>
{
var exception = new TestException();
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.Iterate)).And.Throw(exception);
var thrown = Expect(() => TestSubject.Iterate(3)).ToThrow <TestException>();
Expect(thrown).ToBe(exception);
});
// the only non-generic spy entry point
Describe("with no parameters", () =>
{
It("should call through by default.", () =>
{
TestSubject.Increment();
Expect(TestSubject.Value).ToBe(1);
});
It("should do nothing if spied on.", () =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.Increment));
TestSubject.Increment();
Expect(TestSubject.Value).ToBeDefault();
});
It("should call through as configured.", () =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.Increment)).And.CallThrough();
TestSubject.Increment();
Expect(TestSubject.Value).ToBe(1);
});
It("should throw an exception as configured.", () =>
{
var exception = new TestException();
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.Increment)).And.Throw(exception);
var thrown = Expect(() => TestSubject.Increment()).ToThrow <TestException>();
Expect(thrown).ToBe(exception);
});
});
});
Describe("A static function", () =>
{
It("should call through by default.", () =>
{
var result = TestSubject.Add5(3);
Expect(result).ToBe(8);
});
It("should do nothing if spied on.", () =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.Add5));
var result = TestSubject.Add5(3);
Expect(result).ToBeDefault();
});
It("should return the configured value.", () =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.Add5)).And.ReturnValue(1);
var result = TestSubject.Add5(3);
Expect(result).ToBe(1);
});
It("should return the configured values in sequence.", () =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.Add5)).And.ReturnValues(1, 2, 3, 4);
var result = TestSubject.Add5(3);
Expect(result).ToBe(1);
result = TestSubject.Add5(3);
Expect(result).ToBe(2);
result = TestSubject.Add5(3);
Expect(result).ToBe(3);
result = TestSubject.Add5(3);
Expect(result).ToBe(4);
});
It("should call through as configured.", () =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.Add5)).And.CallThrough();
var result = TestSubject.Add5(3);
Expect(result).ToBe(8);
});
It("should throw an exception as configured.", () =>
{
var exception = new TestException();
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.Add5)).And.Throw(exception);
var thrown = Expect(() => TestSubject.Add5(3)).ToThrow <TestException>();
Expect(thrown).ToBe(exception);
});
});
}
public SpyExpectSpec()
{
Describe <SpyExpect>(() =>
{
TestSubject testSubject = null;
Spy spy = null;
BeforeEach(() =>
{
testSubject = new TestSubject();
spy = Jaz.SpyOn(testSubject, nameof(testSubject.Action));
});
Describe(nameof(SpyExpect.Not), () =>
{
It("should invert the check.", () =>
{
Expect(spy).Not.ToHaveBeenCalled();
});
});
Describe(nameof(SpyExpect.ToHaveBeenCalled), () =>
{
It("should fail if the spy was not called.", () =>
{
Expect(() => Expect(spy).ToHaveBeenCalled()).ToThrow <JazExpectationException>();
});
It("should pass if the spy was called.", () =>
{
testSubject.Action(1, 2.0, "three");
Expect(spy).ToHaveBeenCalled();
});
Describe("with Not", () =>
{
It("should invert the check.", () =>
{
Expect(spy).Not.ToHaveBeenCalled();
testSubject.Action(1, 2.0, "three");
Expect(() => Expect(spy).Not.ToHaveBeenCalled()).ToThrow <JazExpectationException>();
});
});
});
Describe(nameof(SpyExpect.ToHaveBeenCalledTimes), () =>
{
It("should fail if the spy was called less than the expected number of times.", () =>
{
Expect(() => Expect(spy).ToHaveBeenCalledTimes(1)).ToThrow <JazExpectationException>();
});
It("should pass if the spy was called the expected number of times.", () =>
{
testSubject.Action(1, 2.0, "three");
Expect(spy).ToHaveBeenCalledTimes(1);
});
It("should fail if the spy was called more than the expected number of times.", () =>
{
testSubject.Action(1, 2.0, "three");
testSubject.Action(1, 2.0, "three");
Expect(() => Expect(spy).ToHaveBeenCalledTimes(1)).ToThrow <JazExpectationException>();
});
Describe("with Not", () =>
{
It("should invert the check.", () =>
{
Expect(spy).Not.ToHaveBeenCalledTimes(1);
testSubject.Action(1, 2.0, "three");
Expect(() => Expect(spy).Not.ToHaveBeenCalledTimes(1)).ToThrow <JazExpectationException>();
testSubject.Action(1, 2.0, "three");
Expect(spy).Not.ToHaveBeenCalledTimes(1);
});
});
});
Describe(nameof(SpyExpect.ToHaveBeenCalledWith), () =>
{
It("should fail if the spy was not called.", () =>
{
Expect(() => Expect(spy).ToHaveBeenCalledWith(1, 2.0, "three")).ToThrow <JazExpectationException>();
});
It("should fail if the spy was not called with the expected parameters.", () =>
{
testSubject.Action(1, 2.0, "tree");
Expect(() => Expect(spy).ToHaveBeenCalledWith(1, 2.0, "three")).ToThrow <JazExpectationException>();
});
It("should pass if the spy was called with the expected parameters.", () =>
{
testSubject.Action(1, 2.0, "three");
Expect(spy).ToHaveBeenCalledWith(1, 2.0, "three");
});
Describe("with Not", () =>
{
It("should invert the check.", () =>
{
Expect(spy).Not.ToHaveBeenCalledWith(1, 2.0, "three");
testSubject.Action(1, 2.0, "tree");
Expect(spy).Not.ToHaveBeenCalledWith(1, 2.0, "three");
testSubject.Action(1, 2.0, "three");
Expect(() => Expect(spy).Not.ToHaveBeenCalledWith(1, 2.0, "three")).ToThrow <JazExpectationException>();
});
});
});
});
}
public InstanceMethodSpec()
{
Describe("An Instance Action", () =>
{
var subject = new TestSubject();
It("should call through by default.", () =>
{
subject.Iterate(3);
Expect(subject.Value).ToBe(3);
});
It("should do nothing if spied on.", () =>
{
Jaz.SpyOn(subject, nameof(subject.Iterate));
subject.Iterate(3);
Expect(subject.Value).ToBeDefault();
});
It("should call through as configured.", () =>
{
Jaz.SpyOn(subject, nameof(subject.Iterate)).And.CallThrough();
subject.Iterate(3);
Expect(subject.Value).ToBe(3);
});
It("should throw an exception as configured.", () =>
{
var exception = new TestException();
Jaz.SpyOn(subject, nameof(subject.Iterate)).And.Throw(exception);
var thrown = Expect(() => subject.Iterate(3)).ToThrow <TestException>();
Expect(thrown).ToBe(exception);
});
});
Describe("An Instance Function", () =>
{
var subject = new TestSubject();
It("should call through by default.", () =>
{
var result = subject.Add5(3);
Expect(result).ToBe(8);
});
It("should do nothing if spied on.", () =>
{
Jaz.SpyOn(subject, nameof(subject.Add5));
var result = subject.Add5(3);
Expect(result).ToBeDefault();
});
It("should return the configured value.", () =>
{
Jaz.SpyOn(subject, nameof(subject.Add5)).And.ReturnValue(1);
var result = subject.Add5(3);
Expect(result).ToBe(1);
});
It("should return the configured values in sequence.", () =>
{
Jaz.SpyOn(subject, nameof(subject.Add5)).And.ReturnValues(1, 2, 3, 4);
var result = subject.Add5(3);
Expect(result).ToBe(1);
result = subject.Add5(3);
Expect(result).ToBe(2);
result = subject.Add5(3);
Expect(result).ToBe(3);
result = subject.Add5(3);
Expect(result).ToBe(4);
});
It("should call through as configured.", () =>
{
Jaz.SpyOn(subject, nameof(subject.Add5)).And.CallThrough();
var result = subject.Add5(3);
Expect(result).ToBe(8);
});
It("should throw an exception as configured.", () =>
{
var exception = new TestException();
Jaz.SpyOn(subject, nameof(subject.Add5)).And.Throw(exception);
var thrown = Expect(() => subject.Add5(3)).ToThrow <TestException>();
Expect(thrown).ToBe(exception);
});
});
}
public GenericInstanceMethodSpec()
{
Describe("A generic instance action", () =>
{
var subject = new TestSubject();
It("should call through by default.", () =>
{
subject.Iterate(3);
Expect(subject.Value).ToBe(3);
});
It("should do nothing if spied on.", () =>
{
Jaz.SpyOn(subject, nameof(subject.Iterate));
subject.Iterate(3);
Expect(subject.Value).ToBeDefault();
});
It("should call through as configured.", () =>
{
Jaz.SpyOn(subject, nameof(subject.Iterate)).And.CallThrough();
subject.Iterate(3);
Expect(subject.Value).ToBe(3);
});
It("should throw an exception as configured.", () =>
{
var exception = new TestException();
Jaz.SpyOn(subject, nameof(subject.Iterate)).And.Throw(exception);
var thrown = Expect(() => subject.Iterate(3)).ToThrow <TestException>();
Expect(thrown).ToBe(exception);
});
});
Describe("A generic instance function", () =>
{
var subject = new TestSubject();
It("should call through by default.", () =>
{
var result = subject.Add5(3);
Expect(result).ToBe(8);
});
It("should do nothing if spied on.", () =>
{
Jaz.SpyOn(subject, nameof(subject.Add5));
var result = subject.Add5(3);
Expect(result).ToBeDefault();
});
It("should return the configured value.", () =>
{
Jaz.SpyOn(subject, nameof(subject.Add5)).And.ReturnValue(1);
var result = subject.Add5(3);
Expect(result).ToBe(1);
});
It("should return the configured values in sequence.", () =>
{
Jaz.SpyOn(subject, nameof(subject.Add5)).And.ReturnValues(1, 2, 3, 4);
var result = subject.Add5(3);
Expect(result).ToBe(1);
result = subject.Add5(3);
Expect(result).ToBe(2);
result = subject.Add5(3);
Expect(result).ToBe(3);
result = subject.Add5(3);
Expect(result).ToBe(4);
});
It("should call through as configured.", () =>
{
Jaz.SpyOn(subject, nameof(subject.Add5)).And.CallThrough();
var result = subject.Add5(3);
Expect(result).ToBe(8);
});
It("should throw an exception as configured.", () =>
{
var exception = new TestException();
Jaz.SpyOn(subject, nameof(subject.Add5)).And.Throw(exception);
var thrown = Expect(() => subject.Add5(3)).ToThrow <TestException>();
Expect(thrown).ToBe(exception);
});
It("should support calling a generic method from a generic method.", () =>
{
var testSubject = new TestSubject();
var result = testSubject.CallFunc(() => 5);
Expect(result).ToBe(5);
});
It("should support calling a generic method from a generic class.", () =>
{
var testSubject = new TestSubject <int>();
var result = testSubject.CallFunc(() => 5);
Expect(result).ToBe(5);
});
It("should support calling a generic class from a generic method.", () =>
{
var testSubject = new TestSubject();
var result = testSubject.CallFunc2(() => 5);
Expect(result).ToBe(5);
});
It("should support calling a method on a nested class in a generic class.", () =>
{
var testSubject = new TestSubject <int> .TestSubjectChild();
var result = testSubject.CallFunc(() => 5);
Expect(result).ToBe(5);
});
});
}
public AsyncAwaitSpec()
{
Describe("Async Await methods", () =>
{
Describe("from non-async method", () =>
{
It("should call through by default.", () =>
{
TestSubject.InternalMethod(5).GetAwaiter().GetResult();
});
});
Describe("without a result", () =>
{
It("should call through by default.", async() =>
{
await TestSubject.MethodOne(5);
});
// spies may be changed to return Task.CompletedTask in future
It("should do nothing if spied on.", () =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.MethodOne));
var task = TestSubject.MethodOne(5);
Expect(task).ToBeDefault();
});
It("should call through as configured.", async() =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.MethodOne)).And.CallThrough();
await TestSubject.MethodOne(5);
});
It("should throw an exception as configured.", async() =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.MethodOne)).And.Throw <TestException>();
await ExpectAsync(() => TestSubject.MethodOne(5)).ToThrow <TestException>();
});
It("should throw an exception as configured.", async() =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.MethodOne)).And.Throw <TestException>();
await ExpectAsync(async() => await TestSubject.MethodOne(5)).ToThrow <TestException>();
});
});
Describe("with a result", () =>
{
It("should call through by default.", async() =>
{
var result = await TestSubject.MethodTwo(5);
Expect(result).ToBe("5");
});
// spies may be changed to return Task.CompletedTask in future
It("should do nothing if spied on.", () =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.MethodTwo));
var task = TestSubject.MethodTwo(5);
Expect(task).ToBeDefault();
});
It("should call through as configured.", async() =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.MethodTwo)).And.CallThrough();
var result = await TestSubject.MethodTwo(5);
Expect(result).ToBe("5");
});
It("should throw an exception as configured.", async() =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.MethodOne)).And.Throw <TestException>();
await ExpectAsync(() => TestSubject.MethodOne(5)).ToThrow <TestException>();
});
It("should throw an exception as configured.", async() =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.MethodOne)).And.Throw <TestException>();
await ExpectAsync(async() => await TestSubject.MethodOne(5)).ToThrow <TestException>();
});
It("should return the configured value.", async() =>
{
Jaz.SpyOn(typeof(TestSubject), nameof(TestSubject.MethodTwo)).And.ReturnValue(Task.FromResult("3"));
var result = await TestSubject.MethodTwo(5);
Expect(result).ToBe("3");
});
});
});
}