Rework client interface

client/rpc_request_test.go

@@ -0,0 +1,23 @@
+package client
+
+import (
+	"testing"
+)
+
+func TestRequestOptions(t *testing.T) {
+	r := newRequest("service", "method", nil, "application/json")
+	if r.Service() != "service" {
+		t.Fatalf("expected 'service' got %s", r.Service())
+	}
+	if r.Method() != "method" {
+		t.Fatalf("expected 'method' got %s", r.Method())
+	}
+	if r.ContentType() != "application/json" {
+		t.Fatalf("expected 'method' got %s", r.ContentType())
+	}
+
+	r2 := newRequest("service", "method", nil, "application/json", WithContentType("application/protobuf"))
+	if r2.ContentType() != "application/protobuf" {
+		t.Fatalf("expected 'method' got %s", r2.ContentType())
+	}
+}