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vbreuss merged 2 commits into from
Apr 27, 2026
Merged

coverage: add tests for indexer and property setup behaviors #690

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d500a7f
coverage: add tests for indexer and property setup behaviors
vbreuss Apr 27, 2026
488a188
coverage: add tests for OnSet behavior with multiple parameters and c…
vbreuss Apr 27, 2026
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134 changes: 129 additions & 5 deletions Tests/Mockolate.Internal.Tests/Setup/IndexerSetupTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -57,7 +57,7 @@ public async Task ExecuteGetterCallback_WhenTypesAndNumberMatch_ShouldExecute()
indexerSetup.OnGet.Do(() => { callCount++; });
IndexerGetterAccess<int> access = new(1);

string result = indexerSetup.DoGetResult(access, "foo");
indexerSetup.DoGetResult(access, "foo");

await That(callCount).IsEqualTo(1);
}
Expand Down Expand Up @@ -233,11 +233,24 @@ public async Task ExecuteGetterCallback_WhenTypesAndNumberMatch_ShouldExecute()
indexerSetup.OnGet.Do(() => { callCount++; });
IndexerGetterAccess<int, int> access = new(1, 2);

string result = indexerSetup.DoGetResult(access, "foo");
indexerSetup.DoGetResult(access, "foo");

await That(callCount).IsEqualTo(1);
}

[Fact]
public async Task ExecuteSetterCallback_WhenAssignedValueDoesNotCastToTValue_ShouldNotExecute()
{
int callCount = 0;
MyIndexerSetup<int, int> indexerSetup = new();
indexerSetup.OnSet.Do(() => { callCount++; });
IndexerSetterAccess<int, int, string> access = new(1, 2, "bar");

indexerSetup.DoSetResult(access, 2L);

await That(callCount).IsEqualTo(0);
}

[Fact]
public async Task ExecuteSetterCallback_WhenGenericTypeDoesNotMatch_ShouldNotExecute()
{
Expand Down Expand Up @@ -316,6 +329,33 @@ public async Task GetResult_WithBaseValue_StoresComputedValueForLaterLookup()
await That(stored).IsEqualTo("base");
}

[Fact]
public async Task GetResult_WithFuncGenerator_AndInitialization_ShouldUseInitializationValue()
{
IndexerSetup<string, int, int> setup = new(
new MockRegistry(MockBehavior.Default, new FastMockInteractions(0)),
(IParameterMatch<int>)It.IsAny<int>(),
(IParameterMatch<int>)It.IsAny<int>());
setup.InitializeWith((p1, p2) => $"{p1}-{p2}");
IndexerValueStorage<string> storage = new();
IndexerGetterAccess<int, int> access1 = new(7, 9)
{
Storage = storage,
};

string result = setup.GetResult<string>(access1, MockBehavior.Default, () => "fallback");

IndexerGetterAccess<int, int> access2 = new(7, 9)
{
Storage = storage,
};
bool found = access2.TryFindStoredValue(out string stored);

await That(result).IsEqualTo("7-9");
await That(found).IsTrue();
await That(stored).IsEqualTo("7-9");
}

private sealed class MyIndexerSetup<T1, T2>()
: IndexerSetup<string, T1, T2>(
new MockRegistry(MockBehavior.Default, new FastMockInteractions(0)),
Expand Down Expand Up @@ -392,11 +432,24 @@ public async Task ExecuteGetterCallback_WhenTypesAndNumberMatch_ShouldExecute()
indexerSetup.OnGet.Do(() => { callCount++; });
IndexerGetterAccess<int, int, int> access = new(1, 2, 3);

string result = indexerSetup.DoGetResult(access, "foo");
indexerSetup.DoGetResult(access, "foo");

await That(callCount).IsEqualTo(1);
}

[Fact]
public async Task ExecuteSetterCallback_WhenAssignedValueDoesNotCastToTValue_ShouldNotExecute()
{
int callCount = 0;
MyIndexerSetup<int, int, int> indexerSetup = new();
indexerSetup.OnSet.Do(() => { callCount++; });
IndexerSetterAccess<int, int, int, string> access = new(1, 2, 3, "bar");

indexerSetup.DoSetResult(access, 2L);

await That(callCount).IsEqualTo(0);
}

[Fact]
public async Task ExecuteSetterCallback_WhenGenericTypeDoesNotMatch_ShouldNotExecute()
{
Expand Down Expand Up @@ -478,6 +531,34 @@ public async Task GetResult_WithBaseValue_StoresComputedValueForLaterLookup()
await That(stored).IsEqualTo("base");
}

[Fact]
public async Task GetResult_WithFuncGenerator_AndInitialization_ShouldUseInitializationValue()
{
IndexerSetup<string, int, int, int> setup = new(
new MockRegistry(MockBehavior.Default, new FastMockInteractions(0)),
(IParameterMatch<int>)It.IsAny<int>(),
(IParameterMatch<int>)It.IsAny<int>(),
(IParameterMatch<int>)It.IsAny<int>());
setup.InitializeWith((p1, p2, p3) => $"{p1}-{p2}-{p3}");
IndexerValueStorage<string> storage = new();
IndexerGetterAccess<int, int, int> access1 = new(7, 8, 9)
{
Storage = storage,
};

string result = setup.GetResult<string>(access1, MockBehavior.Default, () => "fallback");

IndexerGetterAccess<int, int, int> access2 = new(7, 8, 9)
{
Storage = storage,
};
bool found = access2.TryFindStoredValue(out string stored);

await That(result).IsEqualTo("7-8-9");
await That(found).IsTrue();
await That(stored).IsEqualTo("7-8-9");
}

private sealed class MyIndexerSetup<T1, T2, T3>()
: IndexerSetup<string, T1, T2, T3>(
new MockRegistry(MockBehavior.Default, new FastMockInteractions(0)),
Expand Down Expand Up @@ -558,11 +639,25 @@ public async Task ExecuteGetterCallback_WhenTypesAndNumberMatch_ShouldExecute()
IndexerGetterAccess<int, int, int, int> access =
new(1, 2, 3, 4);

string result = indexerSetup.DoGetResult(access, "foo");
indexerSetup.DoGetResult(access, "foo");

await That(callCount).IsEqualTo(1);
}

[Fact]
public async Task ExecuteSetterCallback_WhenAssignedValueDoesNotCastToTValue_ShouldNotExecute()
{
int callCount = 0;
MyIndexerSetup<int, int, int, int> indexerSetup = new();
indexerSetup.OnSet.Do(() => { callCount++; });
IndexerSetterAccess<int, int, int, int, string> access =
new(1, 2, 3, 4, "bar");

indexerSetup.DoSetResult(access, 2L);

await That(callCount).IsEqualTo(0);
}

[Fact]
public async Task ExecuteSetterCallback_WhenGenericTypeDoesNotMatch_ShouldNotExecute()
{
Expand Down Expand Up @@ -649,6 +744,35 @@ public async Task GetResult_WithBaseValue_StoresComputedValueForLaterLookup()
await That(stored).IsEqualTo("base");
}

[Fact]
public async Task GetResult_WithFuncGenerator_AndInitialization_ShouldUseInitializationValue()
{
IndexerSetup<string, int, int, int, int> setup = new(
new MockRegistry(MockBehavior.Default, new FastMockInteractions(0)),
(IParameterMatch<int>)It.IsAny<int>(),
(IParameterMatch<int>)It.IsAny<int>(),
(IParameterMatch<int>)It.IsAny<int>(),
(IParameterMatch<int>)It.IsAny<int>());
setup.InitializeWith((p1, p2, p3, p4) => $"{p1}-{p2}-{p3}-{p4}");
IndexerValueStorage<string> storage = new();
IndexerGetterAccess<int, int, int, int> access1 = new(6, 7, 8, 9)
{
Storage = storage,
};

string result = setup.GetResult<string>(access1, MockBehavior.Default, () => "fallback");

IndexerGetterAccess<int, int, int, int> access2 = new(6, 7, 8, 9)
{
Storage = storage,
};
bool found = access2.TryFindStoredValue(out string stored);

await That(result).IsEqualTo("6-7-8-9");
await That(found).IsTrue();
await That(stored).IsEqualTo("6-7-8-9");
}

private sealed class MyIndexerSetup<T1, T2, T3, T4>()
: IndexerSetup<string, T1, T2, T3, T4>(
new MockRegistry(MockBehavior.Default, new FastMockInteractions(0)),
Expand Down Expand Up @@ -731,7 +855,7 @@ public async Task ExecuteGetterCallback_WhenTypesAndNumberMatch_ShouldExecute()
IndexerGetterAccess<int, int, int, int, int> access =
new(1, 2, 3, 4, 5);

string result = indexerSetup.DoGetResult(access, "foo");
indexerSetup.DoGetResult(access, "foo");

await That(callCount).IsEqualTo(1);
}
Expand Down
43 changes: 43 additions & 0 deletions Tests/Mockolate.Internal.Tests/Setup/PropertySetupTests.cs
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Open in desktop
Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
using Mockolate.Exceptions;
using Mockolate.Internal.Tests.TestHelpers;
using Mockolate.Setup;

Expand Down Expand Up @@ -31,6 +32,48 @@ public async Task DefaultInvokeGetter_WhenRequestedTypeDiffersFromBackingType_Sh
await That(value).IsEqualTo(99f);
}

[Fact]
public async Task DefaultInvokeSetter_WhenValueIsNullAndUnderlyingTypeIsNullable_ShouldStoreDefault()
{
PropertySetup.Default<int?> setup = new("p", 5);
IInteractivePropertySetup interactive = setup;

interactive.InvokeSetter<object?>(null, null, MockBehavior.Default);

int? value = interactive.InvokeGetter<int?>(null, MockBehavior.Default, () => 42);
await That(value).IsNull();
}

[Fact]
public async Task DefaultInvokeSetter_WhenValueIsNullButUnderlyingTypeIsNonNullable_ShouldThrow()
{
PropertySetup.Default<int> setup = new("p", 5);
IInteractivePropertySetup interactive = setup;

void Act()
{
interactive.InvokeSetter<object?>(null, null, MockBehavior.Default);
}

await That(Act).Throws<MockException>()
.WithMessage("*int*").AsWildcard();
}

[Fact]
public async Task DefaultInvokeSetter_WhenValueTypeMismatch_ShouldThrowWithFormattedMessage()
{
PropertySetup.Default<int> setup = new("p", 5);
IInteractivePropertySetup interactive = setup;

void Act()
{
interactive.InvokeSetter<string>(null, "string-value", MockBehavior.Default);
}

await That(Act).Throws<MockException>()
.WithMessage("*'int'*'string'*").AsWildcard();
}

[Fact]
public async Task UserInitializeWith_SecondCall_ShouldNotOverwriteValue()
{
Expand Down
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