Files
pixa/internal/imgcache/negative_cache_internal_test.go
T
clawbot ca512fdb4f
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Remove the unused cache lifetime setting (closes #69)
CacheConfig.CacheTTL was set to DefaultCacheTTL (24 hours) and never
read, so cached images never expired. Remove the field, the constant
and the line that set it. Cached source and transformed images stay
until eviction removes them to keep the cache within cache_max_bytes.

A new test caches a source and a transformed image, sets every time
pixa stores for them two days back (database rows, metadata files and
file times), and checks that both are still served from the cache
without a new upstream fetch.

Existing tests lose only the CacheTTL line of their cache config.

Model: opus-5-5
2026-10-13 07:58:55 +02:00

108 lines
2.1 KiB
Go

package imgcache
import (
"context"
"errors"
"testing"
"time"
)
func TestNegativeCache_StoreAndCheck(t *testing.T) {
t.Parallel()
db := setupTestDB(t)
dir := t.TempDir()
cache, err := NewCache(db, CacheConfig{
StateDir: dir,
NegativeTTL: 5 * time.Minute,
})
if err != nil {
t.Fatal(err)
}
ctx := context.Background()
req := &ImageRequest{
SourceHost: testHostExample,
SourcePath: "/missing.jpg",
}
// Initially should not be in negative cache
hit, err := cache.checkNegativeCache(ctx, req)
if err != nil {
t.Fatal(err)
}
if hit {
t.Error("expected no negative cache hit initially")
}
// Store a negative entry
err = cache.StoreNegative(ctx, req, 404, "not found")
if err != nil {
t.Fatal(err)
}
// Now should be in negative cache
hit, err = cache.checkNegativeCache(ctx, req)
if err != nil {
t.Fatal(err)
}
if !hit {
t.Error("expected negative cache hit after storing")
}
}
func TestNegativeCache_Expired(t *testing.T) {
t.Parallel()
db := setupTestDB(t)
dir := t.TempDir()
cache, err := NewCache(db, CacheConfig{
StateDir: dir,
NegativeTTL: 1 * time.Millisecond, // very short TTL
})
if err != nil {
t.Fatal(err)
}
ctx := context.Background()
req := &ImageRequest{
SourceHost: testHostExample,
SourcePath: "/expired.jpg",
}
// Store a negative entry with very short TTL
err = cache.StoreNegative(ctx, req, 500, "server error")
if err != nil {
t.Fatal(err)
}
// Wait for expiry
time.Sleep(10 * time.Millisecond)
// Should no longer be in negative cache
hit, err := cache.checkNegativeCache(ctx, req)
if err != nil {
t.Fatal(err)
}
if hit {
t.Error("expected expired negative cache entry to be a miss")
}
}
func TestService_Get_ReturnsErrorForNegativeCachedURL(t *testing.T) {
t.Parallel()
// This test verifies that Service.Get() checks the negative cache
// We can't easily test the full pipeline without vips, but we can
// verify the error type
err := ErrNegativeCached
if !errors.Is(err, ErrNegativeCached) {
t.Error("ErrNegativeCached should be identifiable with errors.Is")
}
}