Add tests for calling Span APIs via reflection to verify graceful failures. #28674
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| Assert.Throws<TargetException>(() => ctor.Invoke(new object[] { new int[10], 1, 1 })); | ||
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| ctor = type.GetConstructor(new Type[] { typeof(void*), typeof(int) }); | ||
| Assert.Throws<TargetException>(() => ctor.Invoke(new object[] { null, 1 })); |
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Anything to validate about the TargetException's inner exception?
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What should we validate about the inner exception? That it is null?
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If the inner exception is null, then nevermind. I thought TargetException is often thrown from reflection when it's wrapping another exception, but maybe that's only true of TargetInvocationException?
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| Type type = typeof(MemoryExtensions); | ||
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| MethodInfo method = type.GetMethod("AsSpan", new Type[] { typeof(string) }); |
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Can we use nameof(MemoryExtensions.AsSpan) instead of manually typing the string? Same question for the rest of these.
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What about methods like op_Equality?
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Basically use nameof wherever you can. If you can't use it in some circumstances, then don't 😄
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It is overkill to have the tests for all methods on Span. You should have just one method per interesting category:
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I didn't add tests for all the methods. But I do see some duplication of the MemoryExtensions static methods. I can remove some of those.
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It would be useful to name the tests based on the interesting category that they are testing, not based on the method name that they happen to use to test it. |
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Thanks! |
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You will need to disable these tests on netfx. |
…lures. (dotnet/corefx#28674) * Add tests for calling Span APIs via reflection to verify graceful failures. * Add Span reflection tests to verify graceful failures * Address PR feedback (test cleanup and rename) * Fix up some test names * Minor tweak: Reorder the tests * Exclude running the reflection tests for portable span (netfx) * Remove unused constant from csproj Commit migrated from dotnet/corefx@a7b59b0
Partially resolves https://github.com/dotnet/coreclr/issues/17296
cc @jkotas, @atsushikan, @KrzysztofCwalina