X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/f96550cc40f340c79339338d1da81394bfcb64ad..5dd88c53ca3357f96bb98ad286d0fb0a52ef5f54:/services/keepstore/volume_test.go

diff --git a/services/keepstore/volume_test.go b/services/keepstore/volume_test.go
index c5a7491b3d..34dcbdc8cf 100644
--- a/services/keepstore/volume_test.go
+++ b/services/keepstore/volume_test.go
@@ -10,6 +10,21 @@ import (
 	"time"
 )
 
+// A TestableVolume allows test suites to manipulate the state of an
+// underlying Volume, in order to test behavior in cases that are
+// impractical to achieve with a sequence of normal Volume operations.
+type TestableVolume interface {
+	Volume
+	// [Over]write content for a locator with the given data,
+	// bypassing all constraints like readonly and serialize.
+	PutRaw(locator string, data []byte)
+	// Specify the value Mtime() should return, until the next
+	// call to Touch, TouchWithDate, or Put.
+	TouchWithDate(locator string, lastPut time.Time)
+	// Clean up, delete temporary files.
+	Teardown()
+}
+
 // MockVolumes are test doubles for Volumes, used to test handlers.
 type MockVolume struct {
 	Store      map[string][]byte