open-vault/builtin/logical/transit/path_cache_config_test.go
2022-01-27 10:06:34 -08:00

121 lines
3.3 KiB
Go

package transit
import (
"context"
"testing"
"github.com/hashicorp/vault/sdk/logical"
)
const (
targetCacheSize = 12345
smallCacheSize = 3
)
func TestTransit_CacheConfig(t *testing.T) {
b1, storage := createBackendWithSysView(t)
doReq := func(b *backend, req *logical.Request) *logical.Response {
resp, err := b.HandleRequest(context.Background(), req)
if err != nil || (resp != nil && resp.IsError()) {
t.Fatalf("got err:\n%#v\nreq:\n%#v\n", err, *req)
}
return resp
}
doErrReq := func(b *backend, req *logical.Request) {
resp, err := b.HandleRequest(context.Background(), req)
if err == nil {
if resp == nil || !resp.IsError() {
t.Fatalf("expected error; req:\n%#v\n", *req)
}
}
}
validateResponse := func(resp *logical.Response, expectedCacheSize int, expectedWarning bool) {
actualCacheSize, ok := resp.Data["size"].(int)
if !ok {
t.Fatalf("No size returned")
}
if expectedCacheSize != actualCacheSize {
t.Fatalf("testAccReadCacheConfig expected: %d got: %d", expectedCacheSize, actualCacheSize)
}
// check for the presence/absence of warnings - warnings are expected if a cache size has been
// configured but not yet applied by reloading the plugin
warningCheckPass := expectedWarning == (len(resp.Warnings) > 0)
if !warningCheckPass {
t.Fatalf(
"testAccSteporeadCacheConfig warnings error.\n"+
"expect warnings: %t but number of warnings was: %d",
expectedWarning, len(resp.Warnings),
)
}
}
writeReq := &logical.Request{
Storage: storage,
Operation: logical.UpdateOperation,
Path: "cache-config",
Data: map[string]interface{}{
"size": targetCacheSize,
},
}
writeSmallCacheSizeReq := &logical.Request{
Storage: storage,
Operation: logical.UpdateOperation,
Path: "cache-config",
Data: map[string]interface{}{
"size": smallCacheSize,
},
}
readReq := &logical.Request{
Storage: storage,
Operation: logical.ReadOperation,
Path: "cache-config",
}
polReq := &logical.Request{
Storage: storage,
Operation: logical.UpdateOperation,
Path: "keys/aes256",
Data: map[string]interface{}{
"derived": true,
},
}
// test steps
// b1 should spin up with an unlimited cache
validateResponse(doReq(b1, readReq), 0, false)
// Change cache size to targetCacheSize 12345 and validate that cache size is updated
doReq(b1, writeReq)
validateResponse(doReq(b1, readReq), targetCacheSize, false)
b1.invalidate(context.Background(), "cache-config/")
// Change the cache size to 1000 to mock the scenario where
// current cache size and stored cache size are different and
// a cache update is needed
b1.lm.InitCache(1000)
// Write a new policy which in its code path detects that cache size has changed
// and refreshes the cache to 12345
doReq(b1, polReq)
// Validate that cache size is updated to 12345
validateResponse(doReq(b1, readReq), targetCacheSize, false)
// b2 should spin up with a configured cache
b2 := createBackendWithSysViewWithStorage(t, storage)
validateResponse(doReq(b2, readReq), targetCacheSize, false)
// b3 enables transit without a cache, trying to read it should error
b3 := createBackendWithForceNoCacheWithSysViewWithStorage(t, storage)
doErrReq(b3, readReq)
// b4 should spin up with a size less than minimum cache size (10)
b4, storage := createBackendWithSysView(t)
doErrReq(b4, writeSmallCacheSizeReq)
}