logcat: confirm -g result after -c (e7e5f1b6) · Commits · e / os / android_system_core

logcat/tests/logcat_test.cpp

+47 −0

Original line number	Diff line number	Diff line
		@@ -810,12 +810,14 @@ TEST(logcat, blocking_clear) {
		ASSERT_TRUE(NULL != (fp = popen(
		"( trap exit HUP QUIT INT PIPE KILL ; sleep 6; echo DONE )&"
		" logcat -b events -c 2>&1 ;"
		" logcat -b events -g 2>&1 ;"
		" logcat -v brief -b events 2>&1",
		"r")));

		char buffer[BIG_BUFFER];

		int count = 0;
		int minus_g = 0;

		int signals = 0;

		@@ -833,6 +835,50 @@ TEST(logcat, blocking_clear) {
		break;
		}

		int size, consumed, max, payload;
		char size_mult[3], consumed_mult[3];
		size = consumed = max = payload = 0;
		if (6 == sscanf(buffer, "events: ring buffer is %d%2s (%d%2s consumed),"
		" max entry is %db, max payload is %db",
		&size, size_mult, &consumed, consumed_mult,
		&max, &payload)) {
		long full_size = size, full_consumed = consumed;

		switch(size_mult[0]) {
		case 'G':
		full_size *= 1024;
		/* FALLTHRU */
		case 'M':
		full_size *= 1024;
		/* FALLTHRU */
		case 'K':
		full_size *= 1024;
		/* FALLTHRU */
		case 'b':
		break;
		}
		switch(consumed_mult[0]) {
		case 'G':
		full_consumed *= 1024;
		/* FALLTHRU */
		case 'M':
		full_consumed *= 1024;
		/* FALLTHRU */
		case 'K':
		full_consumed *= 1024;
		/* FALLTHRU */
		case 'b':
		break;
		}
		EXPECT_GT(full_size, full_consumed);
		EXPECT_GT(full_size, max);
		EXPECT_GT(max, payload);
		EXPECT_GT(max, full_consumed);

		++minus_g;
		continue;
		}

		++count;

		int p;
		@@ -861,6 +907,7 @@ TEST(logcat, blocking_clear) {
		pclose(fp);

		EXPECT_LE(1, count);
		EXPECT_EQ(1, minus_g);

		EXPECT_EQ(1, signals);
		}