8050ee1897
Ports server/const.go, errors.go, proto.go, ring.go, rate_counter.go, sdm.go. - ServerConstants: all protocol constants and version info from const.go - ServerErrors: ~60 sentinel exceptions plus errCtx/configErr/processConfigErr types - ProtoWire: protobuf varint encode/decode helpers (proto.go) - RateCounter: sliding-window rate limiter (rate_counter.go) - ClosedRingBuffer: fixed-size ring buffer for /connz (ring.go) - StreamDeletionMeta: SDM tracking for JetStream cluster consensus (sdm.go) - 5 unit tests passing (errors, ring buffer, rate counter) - errors_gen.go (code generator tool) and nkey.go Server methods marked n_a
88 lines
3.3 KiB
C#
88 lines
3.3 KiB
C#
// Copyright 2020-2025 The NATS Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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using Shouldly;
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using ZB.MOM.NatsNet.Server;
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namespace ZB.MOM.NatsNet.Server.Tests.Foundation;
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/// <summary>
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/// Tests for <see cref="ErrorCtx"/> and <see cref="ErrorContextHelper"/>.
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/// Mirrors server/errors_test.go: TestErrCtx (ID 297) and TestErrCtxWrapped (ID 298).
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/// </summary>
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public sealed class ServerErrorsTests
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{
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[Fact]
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public void ErrCtx_ShouldPreserveOriginalMessageAndAddContext()
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{
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// Mirror: TestErrCtx
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var ctx = "Extra context information";
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var e = ErrorContextHelper.NewErrorCtx(ServerErrors.ErrWrongGateway, "{0}", ctx);
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// Message should match the underlying error.
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e.Message.ShouldBe(ServerErrors.ErrWrongGateway.Message);
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// Must not be reference-equal to the sentinel.
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e.ShouldNotBeSameAs(ServerErrors.ErrWrongGateway);
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// ErrorIs should find the sentinel in the chain.
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ErrorContextHelper.ErrorIs(e, ServerErrors.ErrWrongGateway).ShouldBeTrue();
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// UnpackIfErrorCtx on a non-ctx error returns Message unchanged.
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ErrorContextHelper.UnpackIfErrorCtx(ServerErrors.ErrWrongGateway)
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.ShouldBe(ServerErrors.ErrWrongGateway.Message);
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// UnpackIfErrorCtx should start with the original error message.
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var trace = ErrorContextHelper.UnpackIfErrorCtx(e);
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trace.ShouldStartWith(ServerErrors.ErrWrongGateway.Message);
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// And end with the context string.
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trace.ShouldEndWith(ctx);
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}
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[Fact]
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public void ErrCtxWrapped_ShouldContainAllContextLayers()
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{
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// Mirror: TestErrCtxWrapped
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var ctxO = "Original Ctx";
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var eO = ErrorContextHelper.NewErrorCtx(ServerErrors.ErrWrongGateway, "{0}", ctxO);
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var ctx = "Extra context information";
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var e = ErrorContextHelper.NewErrorCtx(eO, "{0}", ctx);
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// Message should still match the underlying error.
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e.Message.ShouldBe(ServerErrors.ErrWrongGateway.Message);
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// Must not be reference-equal to the sentinel.
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e.ShouldNotBeSameAs(ServerErrors.ErrWrongGateway);
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// ErrorIs should walk the chain.
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ErrorContextHelper.ErrorIs(e, ServerErrors.ErrWrongGateway).ShouldBeTrue();
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// UnpackIfErrorCtx on a non-ctx error returns Message unchanged.
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ErrorContextHelper.UnpackIfErrorCtx(ServerErrors.ErrWrongGateway)
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.ShouldBe(ServerErrors.ErrWrongGateway.Message);
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var trace = ErrorContextHelper.UnpackIfErrorCtx(e);
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// Must start with the original error.
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trace.ShouldStartWith(ServerErrors.ErrWrongGateway.Message);
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// Must end with the outermost context.
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trace.ShouldEndWith(ctx);
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// Must also contain the inner context.
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trace.ShouldContain(ctxO);
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}
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}
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