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// Copyright 2021 The Prometheus 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 web
import (
"fmt"
"testing"
)
// TestCacheSize validates that makeRoom function caps the size of the cache
// appropriately.
func TestCacheSize(t *testing.T) {
cache := newCache()
expectedSize := 0
for i := 0; i < 200; i++ {
cache.set(fmt.Sprintf("foo%d", i), true)
expectedSize++
if expectedSize > 100 {
expectedSize = 90
}
if gotSize := len(cache.cache); gotSize != expectedSize {
t.Fatalf("iter %d: cache size invalid: expected %d, got %d", i, expectedSize, gotSize)
}
}
}
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