1 files changed, 151 insertions, 0 deletions
diff --git a/test/log/log_api.cpp b/test/log/log_api.cpp
new file mode 100644
index 00000000..33622f84
--- /dev/null
+++ b/test/log/log_api.cpp
@@ -0,0 +1,151 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2019, Google Inc.
+ *
+ * log.cpp - log API test
+ */
+
+#include <algorithm>
+#include <fcntl.h>
+#include <iostream>
+#include <list>
+#include <sstream>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <libcamera/logging.h>
+
+#include "log.h"
+#include "test.h"
+
+using namespace std;
+using namespace libcamera;
+
+LOG_DEFINE_CATEGORY(LogAPITest)
+
+class LogAPITest : public Test
+{
+protected:
+	void doLogging()
+	{
+		logSetLevel("LogAPITest", "DEBUG");
+		LOG(LogAPITest, Info) << "good 1";
+
+		logSetLevel("LogAPITest", "WARN");
+		LOG(LogAPITest, Info) << "bad";
+
+		logSetLevel("LogAPITest", "ERROR");
+		LOG(LogAPITest, Error) << "good 3";
+		LOG(LogAPITest, Info) << "bad";
+
+		logSetLevel("LogAPITest", "WARN");
+		LOG(LogAPITest, Warning) << "good 5";
+		LOG(LogAPITest, Info) << "bad";
+	}
+
+	int verifyOutput(istream &is)
+	{
+		list<int> goodList = { 1, 3, 5 };
+		string line;
+		while (getline(is, line)) {
+			if (goodList.empty()) {
+				cout << "Too many log lines" << endl;
+				return TestFail;
+			}
+
+			unsigned int digit = line.back() - '0';
+			unsigned int expect = goodList.front();
+			goodList.pop_front();
+			if (digit != expect) {
+				cout << "Incorrect log line" << endl;
+				return TestFail;
+			}
+		}
+
+		if (!goodList.empty()) {
+			cout << "Too few log lines" << endl;
+			return TestFail;
+		}
+
+		return TestPass;
+	}
+
+	int testFile()
+	{
+		int fd = open("/tmp", O_TMPFILE | O_RDWR, S_IRUSR | S_IWUSR);
+		if (fd < 0) {
+			cerr << "Failed to open tmp log file" << endl;
+			return TestFail;
+		}
+
+		char path[32];
+		snprintf(path, sizeof(path), "/proc/self/fd/%u", fd);
+
+		if (logSetFile(path) < 0) {
+			cerr << "Failed to set log file" << endl;
+			return TestFail;
+		}
+
+		doLogging();
+
+		char buf[1000];
+		memset(buf, 0, sizeof(buf));
+		lseek(fd, 0, SEEK_SET);
+		if (read(fd, buf, sizeof(buf)) < 0) {
+			cerr << "Failed to read tmp log file" << endl;
+			return TestFail;
+		}
+		close(fd);
+
+		istringstream iss(buf);
+		return verifyOutput(iss);
+	}
+
+	int testStream()
+	{
+		stringstream log;
+		/* Never fails, so no need to check return value */
+		logSetStream(&log);
+
+		doLogging();
+
+		return verifyOutput(log);
+	}
+
+	int testTarget()
+	{
+		logSetTarget(LoggingTargetNone);
+		logSetLevel("LogAPITest", "DEBUG");
+		LOG(LogAPITest, Info) << "don't crash please";
+
+		if (!logSetTarget(LoggingTargetFile))
+			return TestFail;
+
+		if (!logSetTarget(LoggingTargetStream))
+			return TestFail;
+
+		return TestPass;
+	}
+
+	int run() override
+	{
+		int ret = testFile();
+		if (ret != TestPass)
+			return TestFail;
+
+		ret = testStream();
+		if (ret != TestPass)
+			return TestFail;
+
+		ret = testTarget();
+		if (ret != TestPass)
+			return TestFail;
+
+		return TestPass;
+	}
+};
+
+TEST_REGISTER(LogAPITest)