[ggj][codegen] fix: handle clientStreamingCall in generated tests (#586)

* fix: fix dep ordering in Bazel dedupe rules

* fix: use lowerCamelCase for string types in DefaultValueComposer

* fix: handle clientStreamingCall in  generated tests

Author: miraleung

src/main/java/com/google/api/generator/gapic/composer/ServiceClientTestClassComposer.java

@@ -1089,7 +1089,8 @@ private static MethodDefinition createStreamingRpcTestMethod(
                   .setName("requestObserver")
                   .build());
       List<Expr> callableMethodArgs = new ArrayList<>();
-      if (!method.stream().equals(Method.Stream.BIDI)) {
+      if (!method.stream().equals(Method.Stream.BIDI)
+          && !method.stream().equals(Method.Stream.CLIENT)) {
         callableMethodArgs.add(requestVarExpr);
       }
       callableMethodArgs.add(responseObserverVarExpr);
@@ -1361,7 +1362,8 @@ private static List<Statement> createStreamingRpcExceptionTestStatements(
                   .build());
 
       List<Expr> callableMethodArgs = new ArrayList<>();
-      if (!method.stream().equals(Method.Stream.BIDI)) {
+      if (!method.stream().equals(Method.Stream.BIDI)
+          && !method.stream().equals(Method.Stream.CLIENT)) {
         callableMethodArgs.add(requestVarExpr);
       }
       callableMethodArgs.add(responseObserverVarExpr);

src/test/java/com/google/api/generator/gapic/composer/goldens/EchoClientTest.golden

@@ -424,8 +424,7 @@ public class EchoClientTest {
     MockStreamObserver<EchoResponse> responseObserver = new MockStreamObserver<>();
 
     ClientStreamingCallable<EchoRequest, EchoResponse> callable = client.collectCallable();
-    ApiStreamObserver<EchoRequest> requestObserver =
-        callable.clientStreamingCall(request, responseObserver);
+    ApiStreamObserver<EchoRequest> requestObserver = callable.clientStreamingCall(responseObserver);
 
     requestObserver.onNext(request);
     requestObserver.onCompleted();
@@ -449,8 +448,7 @@ public class EchoClientTest {
     MockStreamObserver<EchoResponse> responseObserver = new MockStreamObserver<>();
 
     ClientStreamingCallable<EchoRequest, EchoResponse> callable = client.collectCallable();
-    ApiStreamObserver<EchoRequest> requestObserver =
-        callable.clientStreamingCall(request, responseObserver);
+    ApiStreamObserver<EchoRequest> requestObserver = callable.clientStreamingCall(responseObserver);
 
     requestObserver.onNext(request);