Add idempotent test
diff --git a/src/objective-c/tests/GRPCClientTests.m b/src/objective-c/tests/GRPCClientTests.m
index 916a335..ce6ceee 100644
--- a/src/objective-c/tests/GRPCClientTests.m
+++ b/src/objective-c/tests/GRPCClientTests.m
@@ -317,4 +317,37 @@
}
+- (void)testIdempotentProtoRPC {
+ __weak XCTestExpectation *response = [self expectationWithDescription:@"Expected response."];
+ __weak XCTestExpectation *completion = [self expectationWithDescription:@"RPC completed."];
+
+ RMTSimpleRequest *request = [RMTSimpleRequest message];
+ request.responseSize = 100;
+ request.fillUsername = YES;
+ request.fillOauthScope = YES;
+ GRXWriter *requestsWriter = [GRXWriter writerWithValue:[request data]];
+
+ GRPCCall *call = [[GRPCCall alloc] initWithHost:kHostAddress
+ path:kUnaryCallMethod.HTTPPath
+ requestsWriter:requestsWriter];
+ [GRPCCall setCallAttribute:GRPCCallAttrIdempotentRequest host:kHostAddress path:kUnaryCallMethod.HTTPPath];
+
+ id<GRXWriteable> responsesWriteable = [[GRXWriteable alloc] initWithValueHandler:^(NSData *value) {
+ XCTAssertNotNil(value, @"nil value received as response.");
+ XCTAssertGreaterThan(value.length, 0, @"Empty response received.");
+ RMTSimpleResponse *responseProto = [RMTSimpleResponse parseFromData:value error:NULL];
+ // We expect empty strings, not nil:
+ XCTAssertNotNil(responseProto.username, @"Response's username is nil.");
+ XCTAssertNotNil(responseProto.oauthScope, @"Response's OAuth scope is nil.");
+ [response fulfill];
+ } completionHandler:^(NSError *errorOrNil) {
+ XCTAssertNil(errorOrNil, @"Finished with unexpected error: %@", errorOrNil);
+ [completion fulfill];
+ }];
+
+ [call startWithWriteable:responsesWriteable];
+
+ [self waitForExpectationsWithTimeout:8 handler:nil];
+}
+
@end