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path: root/platform/android/src/test/main.jni.cpp
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#include "../jni.hpp"

#include <android/log.h>
#include <jni/jni.hpp>

#include <mbgl/util/logging.hpp>
#include <mbgl/test.hpp>

#pragma clang diagnostic ignored "-Wunused-parameter"

#define MAKE_NATIVE_METHOD(name, sig) jni::MakeNativeMethod<decltype(name), name>( #name, sig )

namespace {

/**
 * JNI Bound to Main#runAllTests()
 */
void runAllTests(JNIEnv *env, jni::jobject* obj) {
    mbgl::Log::Info(mbgl::Event::JNI, "Starting tests");
    mbgl::runTests(0, nullptr);
}

}

// JNI Bindings to stub the android.util.Log implementation

static jboolean isLoggable(JNIEnv* env, jni::jobject* clazz, jni::jstring* tag, jint level) {
    return true;
}

static jint println_native(JNIEnv* env, jni::jobject* clazz, jint bufID, jint priority, jni::jstring* jtag, jni::jstring* jmessage) {
    if (jtag == nullptr || jmessage == nullptr) {
        return false;
    }

    std::string tag = jni::Make<std::string>(*env, jni::String(jtag));
    std::string message = jni::Make<std::string>(*env, jni::String(jmessage));

    return __android_log_print(priority, tag.c_str(), "%s", message.c_str());
}

static jint logger_entry_max_payload_native(JNIEnv* env, jni::jobject* clazz) {
    return static_cast<jint>(4068);
}


// Main entry point

extern "C" JNIEXPORT jint JNI_OnLoad(JavaVM *vm, void *reserved) {
    //Load the main library jni bindings
    mbgl::Log::Info(mbgl::Event::JNI, "Registering main JNI Methods");
    mbgl::android::registerNatives(vm);

    //Load the test library jni bindings
    mbgl::Log::Info(mbgl::Event::JNI, "Registering test JNI Methods");

    jni::JNIEnv& env = jni::GetEnv(*vm, jni::jni_version_1_6);

    //Main class (entry point for tests from dalvikvm)
    struct Main { static constexpr auto Name() { return "Main"; } };
    jni::RegisterNatives(env, jni::Class<Main>::Find(env), MAKE_NATIVE_METHOD(runAllTests, "()V"));

    //Bindings for system classes
    struct Log { static constexpr auto Name() { return "android/util/Log"; } };
    try {
        jni::RegisterNatives(env, jni::Class<Log>::Find(env),
            MAKE_NATIVE_METHOD(isLoggable, "(Ljava/lang/String;I)Z"),
            MAKE_NATIVE_METHOD(logger_entry_max_payload_native, "()I"),
            MAKE_NATIVE_METHOD(println_native, "(IILjava/lang/String;Ljava/lang/String;)I")
        );
    } catch (jni::PendingJavaException ex) {
        env.ThrowNew(jni::JavaErrorClass(env), "Could not register Log mocks");
    }

    return JNI_VERSION_1_6;
}