Integration test for all primitive types

Note that this does not test null references passed for strings from
Java.  We'll address that in a separate CL.

Bug: 25241875
Test: unit tests, integration test passes

Change-Id: Id6f1820965b58d46393c34a0fa4988aac4107ce6
diff --git a/tests/aidl_test_client.cpp b/tests/aidl_test_client.cpp
index 7097edb..89cb6b8 100644
--- a/tests/aidl_test_client.cpp
+++ b/tests/aidl_test_client.cpp
@@ -15,8 +15,10 @@
  */
 
 #include <iostream>
+#include <vector>
 
 #include <binder/IServiceManager.h>
+#include <utils/String8.h>
 #include <utils/String16.h>
 #include <utils/StrongPointer.h>
 
@@ -27,6 +29,7 @@
 using android::sp;
 using android::status_t;
 using android::String16;
+using android::String8;
 
 // libbinder:
 using android::getService;
@@ -37,30 +40,12 @@
 using std::cerr;
 using std::cout;
 using std::endl;
+using std::vector;
 
 namespace {
 
 const char kServiceName[] = "android.aidl.tests.ITestService";
 
-bool ConfirmBasicPing(const sp<ITestService>& service) {
-  cout << "Confirming basic ping functionality." << endl;
-  const int32_t kIncrement = 1 << 20;
-  for (int32_t i = 0; i < 3; ++i) {
-    const int32_t token = -kIncrement + i * kIncrement;
-    int32_t reply = -1;
-    if (service->Ping(token, &reply) != OK) {
-      cerr << "Failed to ping server with token=" << token << endl;
-      return false;
-    }
-    if (token != reply) {
-      cerr << "Server replied to token=" << token
-           << " with reply=" << reply << endl;
-      return false;
-    }
-  }
-  return true;
-}
-
 bool GetService(sp<ITestService>* service) {
   cout << "Retrieving test service binder" << endl;
   status_t status = getService(String16(kServiceName), service);
@@ -72,6 +57,50 @@
   return true;
 }
 
+template <typename T>
+bool RepeatPrimitive(const sp<ITestService>& service,
+                     status_t(ITestService::*func)(T, T*),
+                     const T input) {
+  T reply;
+  status_t status = (*service.*func)(input, &reply);
+  if (status != OK || input != reply) {
+    cerr << "Failed to repeat primitive. status=" << status << "." << endl;
+    return false;
+  }
+  return true;
+}
+
+bool ConfirmPrimitiveRepeat(const sp<ITestService>& s) {
+  cout << "Confirming passing and returning primitives." << endl;
+
+  if (!RepeatPrimitive(s, &ITestService::RepeatBoolean, true) ||
+      !RepeatPrimitive(s, &ITestService::RepeatByte, int8_t{-128}) ||
+      !RepeatPrimitive(s, &ITestService::RepeatChar, char16_t{'A'}) ||
+      !RepeatPrimitive(s, &ITestService::RepeatInt, int32_t{1 << 30}) ||
+      !RepeatPrimitive(s, &ITestService::RepeatLong, int64_t{1ll << 60}) ||
+      !RepeatPrimitive(s, &ITestService::RepeatFloat, float{1.0f/3.0f}) ||
+      !RepeatPrimitive(s, &ITestService::RepeatDouble, double{1.0/3.0})) {
+    return false;
+  }
+
+  vector<String16> inputs = {
+      String16("Deliver us from evil."),
+      String16(),
+      String16("\0\0", 2),
+  };
+  for (const auto& input : inputs) {
+    String16 reply;
+    status_t status = s->RepeatString(input, &reply);
+    if (status != OK || input != reply) {
+      cerr << "Failed while requesting service to repeat String16=\""
+           << String8(input).string()
+           << "\". Got status=" << status << endl;
+      return false;
+    }
+  }
+  return true;
+}
+
 }  // namespace
 
 int main(int /* argc */, char * /* argv */ []) {
@@ -79,7 +108,7 @@
 
   if (!GetService(&service)) return 1;
 
-  if (!ConfirmBasicPing(service)) return 1;
+  if (!ConfirmPrimitiveRepeat(service)) return 1;
 
   return 0;
 }