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Explicitly link LLVMTestingSupport library against LLVMSupport. This
is necessary to fix linking errors when LLVMTestingSupport is built
as a shared library (with BUILD_SHARED_LIBS=ON) and -Wl,-z,defs is used.
Differential Revision: https://reviews.llvm.org/D45408
llvm-svn: 329522
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Summary:
The existing Failed() matcher only allowed asserting that the operation
failed, but it was not possible to verify any details of the returned
error.
This patch adds two new matchers, which make this possible:
- Failed<InfoT>() verifies that the operation failed with a single error
of a given type.
- Failed<InfoT>(M) additionally check that the contained error info
object is matched by the nested matcher M.
To make these work, I've changed the implementation of the ErrorHolder
class. Now, instead of just storing the string representation of the
Error, it fetches the ErrorInfo objects and stores then as a list of
shared pointers. This way, ErrorHolder remains copyable, while still
retaining the full information contained in the Error object.
In case the Error object contains two or more errors, the new matchers
will fail to match, instead of trying to match all (or any) of the
individual ErrorInfo objects. This seemed to be the most sensible
behavior for when one wants to match exact error details, but I could be
convinced otherwise...
Reviewers: zturner, lhames
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D44925
llvm-svn: 329288
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gtest depends on this #define to determine whether it can
use various classes like std::tuple, or whether it has to fall
back to experimental classes in the std::tr1 namespace. The
check in the current version of gtest relies on the value of
the `__cplusplus` macro, but MSVC provides a non-conformant
value of this macro, making it effectively impossible to detect
C++11. In short, LLVM compiled with MSVC has been silently
using the tr1 versions of several classes since the beginning of
time.
This would normally be pretty benign, except that in the latest
preview of MSVC they have marked all of the tr1 classes
deprecated, so it spews thousands of warnings.
llvm-svn: 316798
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This is causing downstream issues with llvm-config.
llvm-svn: 305754
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Many times unit tests for different libraries would like to use
the same helper functions for checking common types of errors.
This patch adds a common library with helpers for testing things
in Support, and introduces helpers in here for integrating the
llvm::Error and llvm::Expected<T> classes with gtest and gmock.
Normally, we would just be able to write:
EXPECT_THAT(someFunction(), succeeded());
but due to some quirks in llvm::Error's move semantics, gmock
doesn't make this easy, so two macros EXPECT_THAT_ERROR() and
EXPECT_THAT_EXPECTED() are introduced to gloss over the difficulties.
Consider this an exception, and possibly only temporary as we
look for ways to improve this.
Differential Revision: https://reviews.llvm.org/D33059
llvm-svn: 305395
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