rpc: add invokescript tests

pkg/rpc/server_test.go

@@ -280,6 +280,35 @@ var rpcTestCases = map[string][]rpcTestCase{
 			fail:   true,
 		},
 	},
+	"invokescript": {
+		{
+			name:   "positive",
+			params: `["51c56b0d48656c6c6f2c20776f726c6421680f4e656f2e52756e74696d652e4c6f67616c7566"]`,
+			result: func(e *executor) interface{} { return &InvokeFunctionResponse{} },
+			check: func(t *testing.T, e *executor, result interface{}) {
+				res, ok := result.(*InvokeFunctionResponse)
+				require.True(t, ok)
+				assert.NotEqual(t, "", res.Result.Script)
+				assert.NotEqual(t, "", res.Result.State)
+				assert.NotEqual(t, 0, res.Result.GasConsumed)
+			},
+		},
+		{
+			name:   "no params",
+			params: `[]`,
+			fail:   true,
+		},
+		{
+			name:   "not a string",
+			params: `[42]`,
+			fail:   true,
+		},
+		{
+			name:   "bas string",
+			params: `["qwerty"]`,
+			fail:   true,
+		},
+	},
 	"sendrawtransaction": {
 		{
 			name:   "positive",