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package integration
import (
"context"
"strings"
"sync/atomic"
"testing"
"time"
"github.com/linode/linodego"
)
func TestCache_RegionList(t *testing.T) {
validateResult := func(r []linodego.Region, err error) {
if err != nil {
t.Fatal(err)
}
if len(r) == 0 {
t.Fatalf("expected a list of regions - %v", r)
}
}
client, teardown := createTestClient(t, "fixtures/TestCache_RegionList")
defer teardown()
// Collect request number
totalRequests := int64(0)
client.OnBeforeRequest(func(request *linodego.Request) error {
page := request.QueryParam.Get("page")
if !strings.Contains(request.URL, "regions") || page != "1" {
return nil
}
atomic.AddInt64(&totalRequests, 1)
return nil
})
// Ensure that overrides work as intended
client.SetGlobalCacheExpiration(0)
// First request (no cache)
validateResult(client.ListRegions(context.Background(), nil))
// Second request (cached)
validateResult(client.ListRegions(context.Background(), nil))
// Clear cache
client.InvalidateCache()
// Third request (non-cached)
validateResult(client.ListRegions(context.Background(), nil))
// Invalidate the region response
if err := client.InvalidateCacheEndpoint("/regions"); err != nil {
t.Fatal(err)
}
// Fourth request (non-cached)
validateResult(client.ListRegions(context.Background(), nil))
// Fifth request (cache disabled)
client.UseCache(false)
validateResult(client.ListRegions(context.Background(), nil))
// Sixth request (cache disabled)
validateResult(client.ListRegions(context.Background(), nil))
// Validate request count
if totalRequests != 4 {
t.Fatalf("expected 4 requests, got %d", totalRequests)
}
}
func TestCache_Expiration(t *testing.T) {
validateResult := func(r []linodego.LinodeKernel, err error) {
if err != nil {
t.Fatal(err)
}
if len(r) == 0 {
t.Fatalf("expected a list of kernels - %v", r)
}
}
client, teardown := createTestClient(t, "fixtures/TestCache_Expiration")
defer teardown()
// Collect request number
totalRequests := int64(0)
client.OnBeforeRequest(func(request *linodego.Request) error {
page := request.QueryParam.Get("page")
if !strings.Contains(request.URL, "kernels") || page != "1" {
return nil
}
atomic.AddInt64(&totalRequests, 1)
return nil
})
// First request (no cache)
validateResult(client.ListKernels(context.Background(), nil))
// Second request (cached)
validateResult(client.ListKernels(context.Background(), nil))
// Entries should expire immediately
client.SetGlobalCacheExpiration(0)
// Third request (non-cached)
validateResult(client.ListKernels(context.Background(), nil))
// Entries shouldn't expire
client.SetGlobalCacheExpiration(time.Hour)
// Fourth request (cached)
validateResult(client.ListKernels(context.Background(), nil))
// Validate request count
if totalRequests != 2 {
t.Fatalf("expected 2 requests, got %d", totalRequests)
}
}
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