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Commit d9df1068 authored by Treehugger Robot's avatar Treehugger Robot Committed by Automerger Merge Worker
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Merge "binderLibTest: filling buffer" am: 184a9c73 am: 85d28f8f am:... 

Merge "binderLibTest: filling buffer" am: 184a9c73 am: 85d28f8f am: 9fee4a71 am: e29166dd am: 513b631f

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2151721



Change-Id: Icf378a56fc0763e77123831b458a3cdc3128e4e5
Signed-off-by: default avatarAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
parents 21e61b02 513b631f

libs/binder/tests/binderLibTest.cpp

+36 −0
Original line number Diff line number Diff line
@@ -1158,6 +1158,42 @@ TEST_F(BinderLibTest, VectorSent) { 
    EXPECT_EQ(readValue, testValue);

}



// see ProcessState.cpp BINDER_VM_SIZE = 1MB.

// This value is not exposed, but some code in the framework relies on being able to use

// buffers near the cap size.

// TODO(b/238777741): why do larger values, like 300K fail sometimes

constexpr size_t kSizeBytesAlmostFull = 100'000;

constexpr size_t kSizeBytesOverFull = 1'050'000;



TEST_F(BinderLibTest, GargantuanVectorSent) {

    sp<IBinder> server = addServer();

    ASSERT_TRUE(server != nullptr);



    for (size_t i = 0; i < 10; i++) {

        // a slight variation in size is used to consider certain possible caching implementations

        const std::vector<uint64_t> testValue((kSizeBytesAlmostFull + i) / sizeof(uint64_t), 42);



        Parcel data, reply;

        data.writeUint64Vector(testValue);

        EXPECT_THAT(server->transact(BINDER_LIB_TEST_ECHO_VECTOR, data, &reply), StatusEq(NO_ERROR))

                << i;

        std::vector<uint64_t> readValue;

        EXPECT_THAT(reply.readUint64Vector(&readValue), StatusEq(OK));

        EXPECT_EQ(readValue, testValue);

    }

}



TEST_F(BinderLibTest, LimitExceededVectorSent) {

    sp<IBinder> server = addServer();

    ASSERT_TRUE(server != nullptr);

    const std::vector<uint64_t> testValue(kSizeBytesOverFull / sizeof(uint64_t), 42);



    Parcel data, reply;

    data.writeUint64Vector(testValue);

    EXPECT_THAT(server->transact(BINDER_LIB_TEST_ECHO_VECTOR, data, &reply),

                StatusEq(FAILED_TRANSACTION));

}



TEST_F(BinderLibTest, BufRejected) {

    Parcel data, reply;

    uint32_t buf;