Files
pixa/internal/imageproxy/divzero_internal_test.go
T
clawbot ce4df5077b
check / check (push) Canceled after 0s
Split internal/imgcache into the image proxy and the cache (closes #317)
The new package internal/imageproxy holds Proxy, which was imgcache.Service,
with its Config, ImageResponse, CacheStatus and errors. NewProxy makes and
registers the counters of upstream fetches and transforms. internal/imgcache
holds the cache only, with its hit and miss counters, and imgcache.CacheConfig
is imgcache.Config. The cache reads and writes each kind it keeps with one pair
of methods: Variant and PutVariant, Source and PutSource, Failure and
PutFailure. Source replaces LookupSource followed by GetSourceContent.
imgcache.go and module.go are gone. The proxy's tests moved with it. The
cache's tests check that the reconciliation pass removes an empty or cut file
and its row. The proxy's tests remove them by hand, then check that Get fetches
or converts again.

Model: opus-5-5
2026-10-26 18:39:15 +00:00

48 lines
1.0 KiB
Go

package imageproxy
import (
"fmt"
"math"
"testing"
)
func TestSizePercentSafeWithZeroFetchBytes(t *testing.T) {
t.Parallel()
// Simulate the calculation from processAndStore
fetchBytes := int64(0)
outputSize := int64(100)
var sizePercent float64
if fetchBytes > 0 {
sizePercent = float64(outputSize) / float64(fetchBytes) * 100.0
}
// sizePercent should be 0, not Inf or NaN
if math.IsInf(sizePercent, 0) || math.IsNaN(sizePercent) {
t.Errorf("sizePercent = %f, should not be Inf/NaN", sizePercent)
}
// Should produce valid log output
result := fmt.Sprintf("%.1f%%", sizePercent)
if result != "0.0%" {
t.Errorf("formatted size ratio = %q, want %q", result, "0.0%")
}
}
func TestSizePercentNormalCase(t *testing.T) {
t.Parallel()
fetchBytes := int64(1000)
outputSize := int64(500)
var sizePercent float64
if fetchBytes > 0 {
sizePercent = float64(outputSize) / float64(fetchBytes) * 100.0
}
if math.Abs(sizePercent-50.0) > 0.001 {
t.Errorf("sizePercent = %f, want 50.0", sizePercent)
}
}