rename binderParcelTest binderUnitTest
This is a host test, and I would like to have more tests here which can
also work on the host.
Bug: 192023359
Test: binderUnitTest
Change-Id: Ie4e7e25d99fd87ef81b1da4345fc9dfe1cc2da6d
diff --git a/libs/binder/tests/binderParcelUnitTest.cpp b/libs/binder/tests/binderParcelUnitTest.cpp
new file mode 100644
index 0000000..fb49d7a
--- /dev/null
+++ b/libs/binder/tests/binderParcelUnitTest.cpp
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <binder/IPCThreadState.h>
+#include <binder/Parcel.h>
+#include <gtest/gtest.h>
+
+using android::IPCThreadState;
+using android::OK;
+using android::Parcel;
+using android::status_t;
+using android::String16;
+using android::String8;
+
+// 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) {
+ Parcel p;
+ a(&p);
+ size_t end = p.dataPosition();
+ p.setDataPosition(0);
+ b(&p);
+ EXPECT_EQ(end, p.dataPosition());
+}
+
+TEST(Parcel, InverseInterfaceToken) {
+ const String16 token = String16("asdf");
+ parcelOpSameLength([&](Parcel* p) { p->writeInterfaceToken(token); },
+ [&](Parcel* p) {
+ EXPECT_TRUE(p->enforceInterface(token, IPCThreadState::self()));
+ });
+}
+
+TEST(Parcel, Utf8FromUtf16Read) {
+ const char* token = "asdf";
+ parcelOpSameLength([&](Parcel* p) { p->writeString16(String16(token)); },
+ [&](Parcel* p) {
+ std::string s;
+ EXPECT_EQ(OK, p->readUtf8FromUtf16(&s));
+ EXPECT_EQ(token, s);
+ });
+}
+
+TEST(Parcel, Utf8AsUtf16Write) {
+ std::string token = "asdf";
+ parcelOpSameLength([&](Parcel* p) { p->writeUtf8AsUtf16(token); },
+ [&](Parcel* p) {
+ String16 s;
+ EXPECT_EQ(OK, p->readString16(&s));
+ EXPECT_EQ(s, String16(token.c_str()));
+ });
+}
+
+template <typename T>
+using readFunc = status_t (Parcel::*)(T* out) const;
+template <typename T>
+using writeFunc = status_t (Parcel::*)(const T& in);
+template <typename T>
+using copyWriteFunc = status_t (Parcel::*)(T in);
+
+template <typename T, typename WRITE_FUNC>
+void readWriteInverse(std::vector<T>&& ts, readFunc<T> r, WRITE_FUNC w) {
+ for (const T& value : ts) {
+ parcelOpSameLength([&](Parcel* p) { (*p.*w)(value); },
+ [&](Parcel* p) {
+ T outValue;
+ EXPECT_EQ(OK, (*p.*r)(&outValue));
+ EXPECT_EQ(value, outValue);
+ });
+ }
+}
+
+template <typename T>
+void readWriteInverse(std::vector<T>&& ts, readFunc<T> r, writeFunc<T> w) {
+ readWriteInverse<T, writeFunc<T>>(std::move(ts), r, w);
+}
+template <typename T>
+void readWriteInverse(std::vector<T>&& ts, readFunc<T> r, copyWriteFunc<T> w) {
+ readWriteInverse<T, copyWriteFunc<T>>(std::move(ts), r, w);
+}
+
+#define TEST_READ_WRITE_INVERSE(type, name, ...) \
+ TEST(Parcel, Inverse##name) { \
+ readWriteInverse<type>(__VA_ARGS__, &Parcel::read##name, &Parcel::write##name); \
+ }
+
+TEST_READ_WRITE_INVERSE(int32_t, Int32, {-2, -1, 0, 1, 2});
+TEST_READ_WRITE_INVERSE(uint32_t, Uint32, {0, 1, 2});
+TEST_READ_WRITE_INVERSE(int64_t, Int64, {-2, -1, 0, 1, 2});
+TEST_READ_WRITE_INVERSE(uint64_t, Uint64, {0, 1, 2});
+TEST_READ_WRITE_INVERSE(float, Float, {-1.0f, 0.0f, 3.14f});
+TEST_READ_WRITE_INVERSE(double, Double, {-1.0, 0.0, 3.14});
+TEST_READ_WRITE_INVERSE(bool, Bool, {true, false});
+TEST_READ_WRITE_INVERSE(char16_t, Char, {u'a', u'\0'});
+TEST_READ_WRITE_INVERSE(int8_t, Byte, {-1, 0, 1});
+TEST_READ_WRITE_INVERSE(String8, String8, {String8(), String8("a"), String8("asdf")});
+TEST_READ_WRITE_INVERSE(String16, String16, {String16(), String16("a"), String16("asdf")});