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cpp11-migrate: Use test fixture in preparation for more tests 

Existing tests are not changed but the set-up work is moved into a fixture
to simplify forthcoming new tests.

llvm-svn: 186575
This commit is contained in:
Edwin Vane 2013-07-18 11:59:08 +00:00
parent 943dd59ed5
commit 0ffd0a9e54
1 changed files with 67 additions and 20 deletions
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87
clang-tools-extra/unittests/cpp11-migrate/FileOverridesTest.cpp
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@ -17,24 +17,72 @@
using namespace llvm;
using namespace clang;
TEST(SourceOverridesTest, Interface) {
llvm::IntrusiveRefCntPtr<clang::DiagnosticOptions> DiagOpts(
new DiagnosticOptions());
DiagnosticsEngine Diagnostics(
llvm::IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs()),
DiagOpts.getPtr());
FileManager Files((FileSystemOptions()));
SourceManager SM(Diagnostics, Files);
StringRef FileName = "<text>";
StringRef Code =
"std::vector<such_a_long_name_for_a_type>::const_iterator long_type =\n"
" vec.begin();\n"
"int x;"; // to test that it's not the whole file that is reformatted
llvm::MemoryBuffer *Buf = llvm::MemoryBuffer::getMemBuffer(Code, FileName);
const clang::FileEntry *Entry =
Files.getVirtualFile(FileName, Buf->getBufferSize(), 0);
SM.overrideFileContents(Entry, Buf);
// Test fixture object that setup some files once for all test cases and remove
// them when the tests are done.
class SourceOverridesTest : public ::testing::Test {
protected:
static void SetUpTestCase() {
DiagOpts =
new IntrusiveRefCntPtr<DiagnosticOptions>(new DiagnosticOptions());
Diagnostics = new DiagnosticsEngine(
IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs()),
DiagOpts->getPtr());
}
static void TearDownTestCase() {
delete DiagOpts;
delete Diagnostics;
}
virtual void SetUp() {
Files = new FileManager(FileSystemOptions());
Sources = NULL;
FileName = NULL;
Code = NULL;
}
void setFilename(const char *F) { FileName = F; }
void setCode(const char *C) { Code = C; }
virtual void TearDown() {
delete Files;
delete Sources;
}
// Creates a new SourceManager with the virtual file and content
SourceManager &getNewSourceManager() {
assert(FileName && Code && "expected Code and FileName to be set.");
delete Sources;
Sources = new SourceManager(*Diagnostics, *Files);
MemoryBuffer *Buf = MemoryBuffer::getMemBuffer(Code, FileName);
const FileEntry *Entry = Files->getVirtualFile(
FileName, Buf->getBufferSize(), /*ModificationTime=*/0);
Sources->overrideFileContents(Entry, Buf);
return *Sources;
}
static SourceManager *Sources;
static const char *FileName;
static const char *Code;
private:
static IntrusiveRefCntPtr<DiagnosticOptions> *DiagOpts;
static DiagnosticsEngine *Diagnostics;
static FileManager *Files;
};
IntrusiveRefCntPtr<DiagnosticOptions> *SourceOverridesTest::DiagOpts = NULL;
DiagnosticsEngine *SourceOverridesTest::Diagnostics = NULL;
FileManager *SourceOverridesTest::Files = NULL;
SourceManager *SourceOverridesTest::Sources = NULL;
const char *SourceOverridesTest::FileName;
const char *SourceOverridesTest::Code;
TEST_F(SourceOverridesTest, Interface) {
setFilename("<test-file>");
setCode(
"std::vector<such_a_long_name_for_a_type>::const_iterator long_type =\n"
" vec.begin();\n");
SourceOverrides Overrides(FileName);
EXPECT_EQ(FileName, Overrides.getMainFileName());
@ -45,12 +93,11 @@ TEST(SourceOverridesTest, Interface) {
strlen("std::vector<such_a_long_name_for_a_type>::const_iterator");
Replaces.insert(
tooling::Replacement(FileName, 0, ReplacementLength, "auto"));
Overrides.applyReplacements(Replaces, SM);
Overrides.applyReplacements(Replaces, getNewSourceManager());
EXPECT_TRUE(Overrides.isSourceOverriden());
std::string ExpectedContent = "auto long_type =\n"
" vec.begin();\n"
"int x;";
" vec.begin();\n";
EXPECT_EQ(ExpectedContent, Overrides.getMainFileContent());
}