PengZheng opened a new pull request, #543:
URL: https://github.com/apache/celix/pull/543
With #524 merged, the lack of exported symbols makes error injector hard to
use.
For example, to inject error into `celix_utils_writeOrCreateString` called
by `celix_module_loadLibraryForManifestEntry`, we need to specify its 9th
caller `celix_framework_installBundle`:
```C++
TEST_F(CelixBundleContextBundlesWithErrorTestSuite, failedToGetLibraryPath) {
celix_ei_expect_celix_utils_writeOrCreateString((void
*)celix_framework_installBundle, 8, nullptr, 2);
long bndId = celix_bundleContext_installBundle(ctx,
SIMPLE_CXX_BUNDLE_LOC, true);
ASSERT_TRUE(bndId > 0); //bundle is installed, but not started
bool called = celix_bundleContext_useBundle(ctx, bndId, nullptr, [](void
*/*handle*/, const celix_bundle_t *bnd) {
auto state = celix_bundle_getState(bnd);
ASSERT_EQ(state, CELIX_BUNDLE_STATE_INSTALLED);
});
ASSERT_TRUE(called);
}
```
And the first call made by `celix_framework_installBundle` came from another
irrelevant module, which means modification to that module may fail this test
case.
Also to make the original test work, we have to export some private API,
which break the purpose of symbol visibility control (and thus is very
undesirable).
This PR addresses both problem, it builds the code under test as a separate
static library and link it into the test executable. The only downside is that
we have to compile the same set of source codes twice instead of once.
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