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Include test sources to pick up functions and classes from the module rather than from the non-modular library which is baked into the test-main library. (#2356)

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This averts linker problems:
 - strong ownership model: missing linker symbols
 - weak ownership model: duplicate linker symbols

Simplify `gtest-extra.cc` while at it.
This commit is contained in:
Daniela Engert 2021-07-03 14:21:54 +00:00 committed by GitHub
parent 02ad5e11da
commit f2b03facd9
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3 changed files with 19 additions and 8 deletions
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4
test/CMakeLists.txt
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@ -41,7 +41,7 @@ function(add_fmt_test name)
set(PEDANTIC_COMPILE_FLAGS ${PEDANTIC_COMPILE_FLAGS} -Wno-weak-vtables)
endif ()
elseif (ADD_FMT_TEST_MODULE)
set(libs test-main test-module)
set(libs gtest test-module)
set_source_files_properties(${name}.cc PROPERTIES OBJECT_DEPENDS test-module)
else ()
set(libs test-main fmt)
@ -97,7 +97,7 @@ if (FMT_CAN_MODULE)
$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>)
enable_module(test-module)
add_fmt_test(module-test MODULE)
add_fmt_test(module-test MODULE test-main.cc)
if (MSVC)
target_compile_options(test-module PRIVATE /utf-8 /Zc:__cplusplus
/Zc:externConstexpr /Zc:inline)

7
test/gtest-extra.cc
View File

@ -32,11 +32,10 @@ output_redirect::~output_redirect() FMT_NOEXCEPT {
}
void output_redirect::flush() {
# if EOF != -1
# error "FMT_RETRY assumes return value of -1 indicating failure"
# endif
int result = 0;
FMT_RETRY(result, fflush(file_));
do {
result = fflush(file_);
} while (result == EOF && errno == EINTR);
if (result != 0) throw fmt::system_error(errno, "cannot flush stream");
}

16
test/module-test.cc
View File

@ -35,18 +35,30 @@
# define FMT_USE_FCNTL 0
#endif
#define FMT_NOEXCEPT noexcept
#if defined(_WIN32) && !defined(__MINGW32__)
# define FMT_POSIX(call) _##call
#else
# define FMT_POSIX(call) call
#endif
#define FMT_OS_H_ // don't pull in os.h directly or indirectly
import fmt;
// check for macros leaking from BMI
static bool macro_leaked =
#if defined(FMT_CORE_H_) || defined(FMT_FORMAT_H)
#if defined(FMT_CORE_H_) || defined(FMT_FORMAT_H_)
true;
#else
false;
#endif
#include "gtest-extra.h"
// Include sources to pick up functions and classes from the module rather than
// from the non-modular library which is baked into the 'test-main' library.
// This averts linker problems:
// - strong ownership model: missing linker symbols
// - weak ownership model: duplicate linker symbols
#include "gtest-extra.cc"
#include "util.cc"
// an implicitly exported namespace must be visible [module.interface]/2.2
TEST(module_test, namespace) {