Finished readdir() tests

src/test/fspp/fuse/readDir/FuseReadDirReturnTest.cpp

@@ -0,0 +1,65 @@
+#include "gtest/gtest.h"
+#include "gmock/gmock.h"
+
+#include "testutils/FuseReadDirTest.h"
+
+#include "fspp/fuse/FuseErrnoException.h"
+
+using ::testing::_;
+using ::testing::StrEq;
+using ::testing::Throw;
+using ::testing::WithParamInterface;
+using ::testing::Values;
+
+using std::make_unique;
+using std::unique_ptr;
+using std::vector;
+using std::string;
+
+using namespace fspp::fuse;
+
+unique_ptr<vector<string>> LARGE_DIR(int num_entries) {
+  auto result = make_unique<vector<string>>();
+  result->reserve(num_entries);
+  for(int i=0; i<num_entries; ++i) {
+    result->push_back("File "+std::to_string(i)+" file");
+  }
+  return result;
+}
+
+class FuseReadDirReturnTest: public FuseReadDirTest, public WithParamInterface<vector<string>> {
+public:
+  void testDirEntriesAreCorrect(const vector<string> &direntries) {
+    ReturnIsDirOnLstat(DIRNAME);
+    EXPECT_CALL(fsimpl, readDir(StrEq(DIRNAME)))
+      .Times(1).WillOnce(ReturnDirEntries(direntries));
+
+    auto returned_dir_entries = ReadDir(DIRNAME);
+    EXPECT_EQ(direntries, *returned_dir_entries);
+  }
+};
+INSTANTIATE_TEST_CASE_P(FuseReadDirReturnTest, FuseReadDirReturnTest, Values(
+    vector<string>({}),
+    vector<string>({"oneentry"}),
+    vector<string>({"twoentries_1", "twoentries_2"}),
+    vector<string>({"file1", "file with spaces"}),
+    vector<string>({"file1", ".dotfile"})
+));
+
+TEST_P(FuseReadDirReturnTest, ReturnedDirEntriesAreCorrect) {
+  testDirEntriesAreCorrect(GetParam());
+}
+
+// If using this with GTest Value-Parametrized TEST_P, it breaks some other unrelated tests
+// (probably because it is doing a lot of construction work on the start of the test program)
+TEST_F(FuseReadDirReturnTest, ReturnedDirEntriesAreCorrect_LargeDir1000) {
+  auto direntries = LARGE_DIR(1000);
+  testDirEntriesAreCorrect(*direntries);
+}
+
+// If using this with GTest Value-Parametrized TEST_P, it breaks some other unrelated tests
+// (probably because it is doing a lot of construction work on the start of the test program)
+TEST_F(FuseReadDirReturnTest, ReturnedDirEntriesAreCorrect_LargeDir1000000) {
+  auto direntries = LARGE_DIR(1000000);
+  testDirEntriesAreCorrect(*direntries);
+}