intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 54 insertions, 0 deletions

diff --git a/library/cpp/testing/gtest_extensions/ut/probe_ut.cpp b/library/cpp/testing/gtest_extensions/ut/probe_ut.cpp
new file mode 100644
index 0000000000..a9d53f896a
--- /dev/null
+++ b/library/cpp/testing/gtest_extensions/ut/probe_ut.cpp
@@ -0,0 +1,54 @@
+#include <library/cpp/testing/gtest/gtest.h>
+
+using namespace testing;
+
+TEST(ProbeStateTest, Example) {
+    // check that our test function does not make a copy of passed argument
+    auto copyless = [](auto&& x) {
+        TProbe p(std::move(x));
+        p.Touch();
+        return p;
+    };
+
+    TProbeState state;
+    auto probe = copyless(TProbe(&state));
+    EXPECT_EQ(1, state.Touches);
+    EXPECT_THAT(state, HasCopyMoveCounts(0, 2));
+}
+
+TEST(ProbeTest, Construct) {
+    TProbeState state;
+    {
+        TProbe probe(&state);
+        EXPECT_THAT(state, IsAlive());
+    }
+    EXPECT_THAT(state, IsDead());
+}
+
+TEST(ProbeTest, Copy) {
+    TProbeState state;
+
+    TProbe probe(&state);
+    TProbe copy(probe);
+    EXPECT_THAT(state, HasCopyMoveCounts(1, 0));
+    EXPECT_THAT(state, NoAssignments());
+    EXPECT_THAT(state, NoMoves());
+
+    TProbe copy2 = TProbe::ExplicitlyCreateInvalidProbe();
+    copy2 = probe;
+    EXPECT_EQ(1, state.CopyAssignments);
+}
+
+TEST(ProbeTest, Move) {
+    TProbeState state;
+    TProbe probe(&state);
+    TProbe probe2(std::move(probe));
+    EXPECT_FALSE(probe.IsValid());
+    EXPECT_THAT(state, NoCopies());
+
+    EXPECT_THAT(state, HasCopyMoveCounts(0, 1));
+
+    TProbe probe3 = TProbe::ExplicitlyCreateInvalidProbe();
+    probe3 = std::move(probe2);
+    EXPECT_EQ(1, state.MoveAssignments);
+}