adding LSP rcp error codes

rpc_test.go

@@ -0,0 +1,38 @@
+package protocol_test
+
+import (
+	"testing"
+
+	"github.com/laravel-ls/protocol"
+)
+
+func Test_IsLspRPCErrorCode(t *testing.T) {
+	if protocol.IsLspRPCErrorCode(5000) {
+		t.Errorf("5000 is not a valid code, but function returned true")
+	}
+
+	if protocol.IsLspRPCErrorCode(-9000) {
+		t.Errorf("-9000 is not a valid code, but function returned true")
+	}
+
+	if protocol.IsLspRPCErrorCode(-32899) == false {
+		t.Errorf("-32899 is a valid code, but function returned false")
+	}
+
+	if protocol.IsLspRPCErrorCode(-32840) == false {
+		t.Errorf("-32840 is a valid code, but function returned false")
+	}
+
+	if protocol.IsLspRPCErrorCode(-32800) == false {
+		t.Errorf("-32800 is a valid code, but function returned false")
+	}
+
+	// Exception
+	if protocol.IsLspRPCErrorCode(-32001) == false {
+		t.Errorf("-32001 is a valid code, but function returned false")
+	}
+
+	if protocol.IsLspRPCErrorCode(-32002) == false {
+		t.Errorf("-32002 is a valid code, but function returned false")
+	}
+}