feat: Support Simulate (#1891)

fixes #1887

src/rpc/common/impl/ForwardingProxy.hpp

@@ -116,6 +116,7 @@ public:
             "manifest",
             "channel_authorize",
             "channel_verify",
+            "simulate",
         };
 
         return kPROXIED_COMMANDS.contains(method);

tests/unit/rpc/ForwardingProxyTests.cpp

@@ -105,6 +105,22 @@ generateTestValuesForParametersTest()
          .called = 1,
          .isAdmin = !isAdmin,
          .expected = shouldForward},
+        {.testName = "ShouldForwardReturnsTrueSimulate",
+         .apiVersion = 1u,
+         .method = "simulate",
+         .testJson = "{}",
+         .mockedIsClioOnly = !isClioOnly,
+         .called = 1,
+         .isAdmin = isAdmin,
+         .expected = shouldForward},
+        {.testName = "ShouldForwardReturnsTrueRipplePathFind",
+         .apiVersion = 2u,
+         .method = "ripple_path_find",
+         .testJson = R"({"force_forward": true})",
+         .mockedIsClioOnly = !isClioOnly,
+         .called = 1,
+         .isAdmin = isAdmin,
+         .expected = shouldForward},
         {.testName = "ShouldForwardReturnsTrueIfCurrentLedgerSpecified",
          .apiVersion = 2u,
          .method = "anymethod",