snapshot of https://github.com/nats-io/nats-server.git (main, 2026-09-15; blobs > 131072B omitted)

server/errors_test.go

@@ -0,0 +1,74 @@
+// Copyright 2020-2025 The NATS Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package server
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestErrCtx(t *testing.T) {
+	ctx := "Extra context information"
+	e := NewErrorCtx(ErrWrongGateway, "%s", ctx)
+
+	if e.Error() != ErrWrongGateway.Error() {
+		t.Fatalf("%v and %v are supposed to be identical", e, ErrWrongGateway)
+	}
+	if e == ErrWrongGateway {
+		t.Fatalf("%v and %v can't be compared this way", e, ErrWrongGateway)
+	}
+	if !ErrorIs(e, ErrWrongGateway) {
+		t.Fatalf("%s and %s ", e, ErrWrongGateway)
+	}
+	if UnpackIfErrorCtx(ErrWrongGateway) != ErrWrongGateway.Error() {
+		t.Fatalf("Error of different type should be processed unchanged")
+	}
+	trace := UnpackIfErrorCtx(e)
+	if !strings.HasPrefix(trace, ErrWrongGateway.Error()) {
+		t.Fatalf("original error needs to remain")
+	}
+	if !strings.HasSuffix(trace, ctx) {
+		t.Fatalf("ctx needs to be added")
+	}
+}
+
+func TestErrCtxWrapped(t *testing.T) {
+	ctxO := "Original Ctx"
+	eO := NewErrorCtx(ErrWrongGateway, "%s", ctxO)
+	ctx := "Extra context information"
+	e := NewErrorCtx(eO, "%s", ctx)
+
+	if e.Error() != ErrWrongGateway.Error() {
+		t.Fatalf("%v and %v are supposed to be identical", e, ErrWrongGateway)
+	}
+	if e == ErrWrongGateway {
+		t.Fatalf("%v and %v can't be compared this way", e, ErrWrongGateway)
+	}
+	if !ErrorIs(e, ErrWrongGateway) {
+		t.Fatalf("%s and %s ", e, ErrWrongGateway)
+	}
+	if UnpackIfErrorCtx(ErrWrongGateway) != ErrWrongGateway.Error() {
+		t.Fatalf("Error of different type should be processed unchanged")
+	}
+	trace := UnpackIfErrorCtx(e)
+	if !strings.HasPrefix(trace, ErrWrongGateway.Error()) {
+		t.Fatalf("original error needs to remain")
+	}
+	if !strings.HasSuffix(trace, ctx) {
+		t.Fatalf("ctx needs to be added")
+	}
+	if !strings.Contains(trace, ctxO) {
+		t.Fatalf("Needs to contain every context")
+	}
+}