70 lines
2.3 KiB
Go
70 lines
2.3 KiB
Go
// Copyright 2026 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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package server
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import (
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"reflect"
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"testing"
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)
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func TestGetFeatureFlag(t *testing.T) {
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featureFlags["test_flag"] = true
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t.Cleanup(func() { delete(featureFlags, "test_flag") })
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// Unset feature flags gets defaults.
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o := &Options{}
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require_Equal(t, o.getFeatureFlag(""), false)
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require_Equal(t, o.getFeatureFlag("test_flag"), true)
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// User disables the feature flag, it takes precedence.
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o.FeatureFlags = map[string]bool{"test_flag": false}
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require_Equal(t, o.getFeatureFlag("test_flag"), false)
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// User enables the feature flag, but we don't support it anymore.
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// It's allowed for the user to provide stale flags, but we shouldn't return they're enabled.
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delete(featureFlags, "test_flag")
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o.FeatureFlags = map[string]bool{"test_flag": true}
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require_Equal(t, o.getFeatureFlag("test_flag"), false)
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}
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func TestFeatureFlagsConfigParseNonBool(t *testing.T) {
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conf := createConfFile(t, []byte(`
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feature_flags {
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opt_in_flag: "true"
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}
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`))
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_, err := ProcessConfigFile(conf)
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require_Error(t, err)
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require_Contains(t, err.Error(), `error parsing feature flag "opt_in_flag": expected bool, got string`)
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}
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func TestGetMergedFeatureFlags(t *testing.T) {
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previous := featureFlags
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featureFlags = make(map[string]bool)
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featureFlags["test_flag"] = true
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featureFlags["test_flag_default"] = true
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t.Cleanup(func() { featureFlags = previous })
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o := &Options{}
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o.FeatureFlags = map[string]bool{"test_flag": false, "unknown_flag": false}
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// The merged flags should only contain known flags, with the user's values taking precedence.
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merged := o.getMergedFeatureFlags()
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expected := map[string]bool{"test_flag": false, "test_flag_default": true}
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if !reflect.DeepEqual(expected, merged) {
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t.Fatalf("Feature flags are incorrect.\nexpected: %+v\ngot: %+v", expected, merged)
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}
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}
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