This source file includes following definitions.
- GetMethodIDWrapper
- SetUp
- TearDown
- Reset
- TEST_F
#include "content/browser/renderer_host/java/jni_helper.h"
#include "base/android/jni_android.h"
#include "base/at_exit.h"
#include "base/logging.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace content {
namespace {
const char kJavaLangObject[] = "java/lang/Object";
const char kGetClass[] = "getClass";
const char kToString[] = "toString";
const char kReturningJavaLangClass[] = "()Ljava/lang/Class;";
const char kReturningJavaLangString[] = "()Ljava/lang/String;";
const char* g_last_method;
const char* g_last_jni_signature;
jmethodID g_last_method_id;
const JNINativeInterface* g_previous_functions;
jmethodID GetMethodIDWrapper(JNIEnv* env, jclass clazz, const char* method,
const char* jni_signature) {
g_last_method = method;
g_last_jni_signature = jni_signature;
g_last_method_id = g_previous_functions->GetMethodID(env, clazz, method,
jni_signature);
return g_last_method_id;
}
}
class JNIAndroidTest : public testing::Test {
protected:
virtual void SetUp() {
JNIEnv* env = base::android::AttachCurrentThread();
g_previous_functions = env->functions;
hooked_functions = *g_previous_functions;
env->functions = &hooked_functions;
hooked_functions.GetMethodID = &GetMethodIDWrapper;
}
virtual void TearDown() {
JNIEnv* env = base::android::AttachCurrentThread();
env->functions = g_previous_functions;
Reset();
}
void Reset() {
g_last_method = 0;
g_last_jni_signature = 0;
g_last_method_id = NULL;
}
base::ShadowingAtExitManager exit_manager;
JNINativeInterface hooked_functions;
};
TEST_F(JNIAndroidTest, GetMethodIDFromClassNameCaching) {
JNIEnv* env = base::android::AttachCurrentThread();
Reset();
jmethodID id1 = GetMethodIDFromClassName(env, kJavaLangObject, kGetClass,
kReturningJavaLangClass);
EXPECT_STREQ(kGetClass, g_last_method);
EXPECT_STREQ(kReturningJavaLangClass, g_last_jni_signature);
EXPECT_EQ(g_last_method_id, id1);
Reset();
jmethodID id2 = GetMethodIDFromClassName(env, kJavaLangObject, kGetClass,
kReturningJavaLangClass);
EXPECT_STREQ(0, g_last_method);
EXPECT_STREQ(0, g_last_jni_signature);
EXPECT_EQ(NULL, g_last_method_id);
EXPECT_EQ(id1, id2);
Reset();
jmethodID id3 = GetMethodIDFromClassName(env, kJavaLangObject, kToString,
kReturningJavaLangString);
EXPECT_STREQ(kToString, g_last_method);
EXPECT_STREQ(kReturningJavaLangString, g_last_jni_signature);
EXPECT_EQ(g_last_method_id, id3);
}
}