libandroidfw: introduce ExecuteBinary (POSIX only)
Introduce a wrapper around fork and exec.
Test: make libandroidfw_tests
Change-Id: Iff0de5319bb6bb101a3fbef6413dfb4e77198f11
diff --git a/libs/androidfw/tests/PosixUtils_test.cpp b/libs/androidfw/tests/PosixUtils_test.cpp
new file mode 100644
index 0000000..cf97f87
--- /dev/null
+++ b/libs/androidfw/tests/PosixUtils_test.cpp
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2018 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 <utility>
+
+#include "androidfw/PosixUtils.h"
+
+#include "TestHelpers.h"
+
+using ::testing::IsNull;
+using ::testing::NotNull;
+
+namespace android {
+namespace util {
+
+TEST(PosixUtilsTest, AbsolutePathToBinary) {
+ const auto result = ExecuteBinary({"/bin/date", "--help"});
+ ASSERT_THAT(result, NotNull());
+ ASSERT_EQ(result->status, 0);
+ ASSERT_EQ(result->stdout.find("usage: date "), 0);
+}
+
+TEST(PosixUtilsTest, RelativePathToBinary) {
+ const auto result = ExecuteBinary({"date", "--help"});
+ ASSERT_THAT(result, NotNull());
+ ASSERT_EQ(result->status, 0);
+ ASSERT_EQ(result->stdout.find("usage: date "), 0);
+}
+
+TEST(PosixUtilsTest, BadParameters) {
+ const auto result = ExecuteBinary({"/bin/date", "--this-parameter-is-not-supported"});
+ ASSERT_THAT(result, NotNull());
+ ASSERT_NE(result->status, 0);
+}
+
+TEST(PosixUtilsTest, NoSuchBinary) {
+ const auto result = ExecuteBinary({"/this/binary/does/not/exist"});
+ ASSERT_THAT(result, IsNull());
+}
+
+} // android
+} // util