EXPORT_JSON support for CPU stack samples
R=khokhlov@google.com,fmayer@google.com
CC=eseckler@google.com,ssid@google.com
Change-Id: Ie2c13191fc4d97c691f810dc6a61525a02f2f1d8
diff --git a/src/trace_processor/export_json_unittest.cc b/src/trace_processor/export_json_unittest.cc
index ea04091..536fa25 100644
--- a/src/trace_processor/export_json_unittest.cc
+++ b/src/trace_processor/export_json_unittest.cc
@@ -967,6 +967,67 @@
EXPECT_EQ(result["systemTraceEvents"].asString(), kLegacyFtraceData);
}
+TEST(ExportJsonTest, CpuProfileEvent) {
+ const int64_t kProcessID = 100;
+ const int64_t kThreadID = 200;
+ const int64_t kTimestamp = 10000000;
+
+ TraceProcessorContext context;
+ context.storage.reset(new TraceStorage());
+ TraceStorage* storage = context.storage.get();
+
+ UniquePid upid = storage->AddEmptyProcess(kProcessID);
+ UniqueTid utid = storage->AddEmptyThread(kThreadID);
+ storage->GetMutableThread(utid)->upid = upid;
+
+ RowId module_row_id_1 = storage->mutable_stack_profile_mappings()->Insert(
+ {storage->InternString("foo_module_id"), 0, 0, 0, 0, 0,
+ storage->InternString("foo_module_name")});
+
+ RowId module_row_id_2 = storage->mutable_stack_profile_mappings()->Insert(
+ {storage->InternString("bar_module_id"), 0, 0, 0, 0, 0,
+ storage->InternString("bar_module_name")});
+
+ RowId frame_row_id_1 = storage->mutable_stack_profile_frames()->Insert(
+ {storage->InternString("foo_func"), module_row_id_1, 0x42});
+
+ RowId frame_row_id_2 = storage->mutable_stack_profile_frames()->Insert(
+ {storage->InternString("bar_func"), module_row_id_2, 0x4242});
+
+ RowId frame_callsite_id_1 =
+ storage->mutable_stack_profile_callsites()->Insert(
+ {0, -1, frame_row_id_1});
+
+ RowId frame_callsite_id_2 =
+ storage->mutable_stack_profile_callsites()->Insert(
+ {1, frame_callsite_id_1, frame_row_id_2});
+
+ storage->mutable_cpu_profile_stack_samples()->Insert(
+ {kTimestamp, frame_callsite_id_2, utid});
+
+ base::TempFile temp_file = base::TempFile::Create();
+ FILE* output = fopen(temp_file.path().c_str(), "w+");
+ int code = ExportJson(storage, output);
+
+ EXPECT_EQ(code, kResultOk);
+
+ Json::Reader reader;
+ Json::Value result;
+ EXPECT_TRUE(reader.parse(ReadFile(output), result));
+
+ EXPECT_EQ(result["traceEvents"].size(), 1u);
+ Json::Value event = result["traceEvents"][0];
+ EXPECT_EQ(event["ph"].asString(), "I");
+ EXPECT_EQ(event["ts"].asInt64(), kTimestamp / 1000);
+ EXPECT_EQ(event["tid"].asUInt(), kThreadID);
+ EXPECT_EQ(event["cat"].asString(), "disabled_by_default-cpu_profiler");
+ EXPECT_EQ(event["name"].asString(), "StackCpuSampling");
+ EXPECT_EQ(event["scope"].asString(), "t");
+ EXPECT_EQ(event["args"]["frames"].asString(),
+ "foo_func - foo_module_name [foo_module_id]\nbar_func - "
+ "bar_module_name [bar_module_id]\n");
+}
+
} // namespace
} // namespace json
} // namespace trace_processor
