Add a few missing pthread tests.

This seems to be all that's tested by system/extras/tests/bionic that isn't
already better tested here.

Change-Id: Id0aa985cefd4047a6007ba9804f541069d9e92ed

diff --git a/tests/pthread_test.cpp b/tests/pthread_test.cpp
index 27d992b..78dbd39 100755 (executable)
--- a/tests/pthread_test.cpp
+++ b/tests/pthread_test.cpp
@@ -1536,6 +1536,9 @@ TEST(pthread, pthread_mutex_lock_NORMAL) {
 
   ASSERT_EQ(0, pthread_mutex_lock(&m.lock));
   ASSERT_EQ(0, pthread_mutex_unlock(&m.lock));
+  ASSERT_EQ(0, pthread_mutex_trylock(&m.lock));
+  ASSERT_EQ(EBUSY, pthread_mutex_trylock(&m.lock));
+  ASSERT_EQ(0, pthread_mutex_unlock(&m.lock));
 }
 
 TEST(pthread, pthread_mutex_lock_ERRORCHECK) {
@@ -1558,6 +1561,8 @@ TEST(pthread, pthread_mutex_lock_RECURSIVE) {
   ASSERT_EQ(0, pthread_mutex_unlock(&m.lock));
   ASSERT_EQ(0, pthread_mutex_unlock(&m.lock));
   ASSERT_EQ(0, pthread_mutex_trylock(&m.lock));
+  ASSERT_EQ(0, pthread_mutex_trylock(&m.lock));
+  ASSERT_EQ(0, pthread_mutex_unlock(&m.lock));
   ASSERT_EQ(0, pthread_mutex_unlock(&m.lock));
   ASSERT_EQ(EPERM, pthread_mutex_unlock(&m.lock));
 }