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Commit ed214073 authored by Steven Moreland's avatar Steven Moreland Committed by Gerrit Code Review
Browse files

Merge "binderUnitTest: Parcel::appendFrom"

parents b35c5a08 a2f835d3

libs/binder/tests/binderParcelUnitTest.cpp

+161 −0
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ using android::sp; 
using android::status_t;

using android::String16;

using android::String8;

using android::base::unique_fd;

using android::binder::Status;



TEST(Parcel, NonNullTerminatedString8) {
@@ -112,6 +113,166 @@ TEST(Parcel, DebugReadAllFds) { 
    EXPECT_EQ(ret[1], STDIN_FILENO);

}



TEST(Parcel, AppendFromEmpty) {

    Parcel p1;

    Parcel p2;

    p2.writeInt32(2);



    ASSERT_EQ(OK, p1.appendFrom(&p2, 0, p2.dataSize()));



    p1.setDataPosition(0);

    ASSERT_EQ(2, p1.readInt32());



    p2.setDataPosition(0);

    ASSERT_EQ(2, p2.readInt32());

}



TEST(Parcel, AppendPlainData) {

    Parcel p1;

    p1.writeInt32(1);

    Parcel p2;

    p2.writeInt32(2);



    ASSERT_EQ(OK, p1.appendFrom(&p2, 0, p2.dataSize()));



    p1.setDataPosition(0);

    ASSERT_EQ(1, p1.readInt32());

    ASSERT_EQ(2, p1.readInt32());



    p2.setDataPosition(0);

    ASSERT_EQ(2, p2.readInt32());

}



TEST(Parcel, AppendPlainDataPartial) {

    Parcel p1;

    p1.writeInt32(1);

    Parcel p2;

    p2.writeInt32(2);

    p2.writeInt32(3);

    p2.writeInt32(4);



    // only copy 8 bytes (two int32's worth)

    ASSERT_EQ(OK, p1.appendFrom(&p2, 0, 8));



    p1.setDataPosition(0);

    ASSERT_EQ(1, p1.readInt32());

    ASSERT_EQ(2, p1.readInt32());

    ASSERT_EQ(3, p1.readInt32());

    ASSERT_EQ(0, p1.readInt32()); // not 4, end of Parcel



    p2.setDataPosition(0);

    ASSERT_EQ(2, p2.readInt32());

}



TEST(Parcel, AppendWithBinder) {

    sp<IBinder> b1 = sp<BBinder>::make();

    sp<IBinder> b2 = sp<BBinder>::make();



    Parcel p1;

    p1.writeInt32(1);

    p1.writeStrongBinder(b1);

    Parcel p2;

    p2.writeInt32(2);

    p2.writeStrongBinder(b2);



    ASSERT_EQ(OK, p1.appendFrom(&p2, 0, p2.dataSize()));



    p1.setDataPosition(0);

    ASSERT_EQ(1, p1.readInt32());

    ASSERT_EQ(b1, p1.readStrongBinder());

    ASSERT_EQ(2, p1.readInt32());

    ASSERT_EQ(b2, p1.readStrongBinder());

    ASSERT_EQ(2, p1.objectsCount());



    p2.setDataPosition(0);

    ASSERT_EQ(2, p2.readInt32());

    ASSERT_EQ(b2, p2.readStrongBinder());

}



TEST(Parcel, AppendWithBinderPartial) {

    sp<IBinder> b1 = sp<BBinder>::make();

    sp<IBinder> b2 = sp<BBinder>::make();



    Parcel p1;

    p1.writeInt32(1);

    p1.writeStrongBinder(b1);

    Parcel p2;

    p2.writeInt32(2);

    p2.writeStrongBinder(b2);



    ASSERT_EQ(OK, p1.appendFrom(&p2, 0, 8)); // BAD: 4 bytes into strong binder



    p1.setDataPosition(0);

    ASSERT_EQ(1, p1.readInt32());

    ASSERT_EQ(b1, p1.readStrongBinder());

    ASSERT_EQ(2, p1.readInt32());

    ASSERT_EQ(1935813253, p1.readInt32()); // whatever garbage that is there (ABI)

    ASSERT_EQ(1, p1.objectsCount());



    p2.setDataPosition(0);

    ASSERT_EQ(2, p2.readInt32());

    ASSERT_EQ(b2, p2.readStrongBinder());

}



TEST(Parcel, AppendWithFd) {

    unique_fd fd1 = unique_fd(dup(0));

    unique_fd fd2 = unique_fd(dup(0));



    Parcel p1;

    p1.writeInt32(1);

    p1.writeDupFileDescriptor(0);      // with ownership

    p1.writeFileDescriptor(fd1.get()); // without ownership

    Parcel p2;

    p2.writeInt32(2);

    p2.writeDupFileDescriptor(0);      // with ownership

    p2.writeFileDescriptor(fd2.get()); // without ownership



    ASSERT_EQ(OK, p1.appendFrom(&p2, 0, p2.dataSize()));



    p1.setDataPosition(0);

    ASSERT_EQ(1, p1.readInt32());

    ASSERT_NE(-1, p1.readFileDescriptor());

    ASSERT_NE(-1, p1.readFileDescriptor());

    ASSERT_EQ(2, p1.readInt32());

    ASSERT_NE(-1, p1.readFileDescriptor());

    ASSERT_NE(-1, p1.readFileDescriptor());

    ASSERT_EQ(4, p1.objectsCount());



    p2.setDataPosition(0);

    ASSERT_EQ(2, p2.readInt32());

    ASSERT_NE(-1, p1.readFileDescriptor());

    ASSERT_NE(-1, p1.readFileDescriptor());

}



TEST(Parcel, AppendWithFdPartial) {

    unique_fd fd1 = unique_fd(dup(0));

    unique_fd fd2 = unique_fd(dup(0));



    Parcel p1;

    p1.writeInt32(1);

    p1.writeDupFileDescriptor(0);      // with ownership

    p1.writeFileDescriptor(fd1.get()); // without ownership

    Parcel p2;

    p2.writeInt32(2);

    p2.writeDupFileDescriptor(0);      // with ownership

    p2.writeFileDescriptor(fd2.get()); // without ownership



    ASSERT_EQ(OK, p1.appendFrom(&p2, 0, 8)); // BAD: 4 bytes into binder



    p1.setDataPosition(0);

    ASSERT_EQ(1, p1.readInt32());

    ASSERT_NE(-1, p1.readFileDescriptor());

    ASSERT_NE(-1, p1.readFileDescriptor());

    ASSERT_EQ(2, p1.readInt32());

    ASSERT_EQ(1717840517, p1.readInt32()); // whatever garbage that is there (ABI)

    ASSERT_EQ(2, p1.objectsCount());



    p2.setDataPosition(0);

    ASSERT_EQ(2, p2.readInt32());

    ASSERT_NE(-1, p1.readFileDescriptor());

    ASSERT_NE(-1, p1.readFileDescriptor());

}



// Tests a second operation results in a parcel at the same location as it

// started.

void parcelOpSameLength(const std::function<void(Parcel*)>& a, const std::function<void(Parcel*)>& b) {