azureblob and fstests - Modify integration tests to include new

optional setting to test SetTier on only few supported tiers.

Remove unused optional interface ListTiers and backend and internal tests

backend/azureblob/azureblob.go

@@ -191,19 +191,6 @@ func validateAccessTier(tier string) bool {
 	}
 }
 
-// validAccessTiers returns list of supported storage tiers on azureblob fs
-func validAccessTiers() []string {
-	validTiers := [...]azblob.AccessTierType{azblob.AccessTierHot, azblob.AccessTierCool,
-		azblob.AccessTierArchive}
-
-	var tiers [len(validTiers)]string
-
-	for i, tier := range validTiers {
-		tiers[i] = string(tier)
-	}
-	return tiers[:]
-}
-
 // retryErrorCodes is a slice of error codes that we will retry
 var retryErrorCodes = []int{
 	401, // Unauthorized (eg "Token has expired")
@@ -321,7 +308,6 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
 		BucketBased:   true,
 		SetTier:       true,
 		GetTier:       true,
-		ListTiers:     true,
 	}).Fill(f)
 	if f.root != "" {
 		f.root += "/"
@@ -1337,11 +1323,6 @@ func (o *Object) GetTier() string {
 	return string(o.accessTier)
 }
 
-// ListTiers returns list of storage tiers supported on this object
-func (o *Object) ListTiers() []string {
-	return validAccessTiers()
-}
-
 // Check the interfaces are satisfied
 var (
 	_ fs.Fs        = &Fs{}

backend/azureblob/azureblob_internal_test.go

@@ -11,9 +11,7 @@ import (
 func (f *Fs) InternalTest(t *testing.T) {
 	// Check first feature flags are set on this
 	// remote
-	enabled := f.Features().ListTiers
-	assert.True(t, enabled)
-	enabled = f.Features().SetTier
+	enabled := f.Features().SetTier
 	assert.True(t, enabled)
 	enabled = f.Features().GetTier
 	assert.True(t, enabled)

backend/azureblob/azureblob_test.go

@@ -14,7 +14,8 @@ import (
 // TestIntegration runs integration tests against the remote
 func TestIntegration(t *testing.T) {
 	fstests.Run(t, &fstests.Opt{
-		RemoteName: "TestAzureBlob:",
-		NilObject:  (*azureblob.Object)(nil),
+		RemoteName:  "TestAzureBlob:",
+		NilObject:   (*azureblob.Object)(nil),
+		TiersToTest: []string{"Hot", "Cool"},
 	})
 }

fstest/fstests/fstests.go

@@ -137,9 +137,9 @@ type Opt struct {
 	RemoteName               string
 	NilObject                fs.Object
 	ExtraConfig              []ExtraConfigItem
-	SkipBadWindowsCharacters bool // skips unusable characters for windows if set
-	SkipFsMatch              bool // if set skip exact matching of Fs value
-
+	SkipBadWindowsCharacters bool     // skips unusable characters for windows if set
+	SkipFsMatch              bool     // if set skip exact matching of Fs value
+	TiersToTest              []string // List of tiers which can be tested in setTier test
 }
 
 // Run runs the basic integration tests for a remote using the remote
@@ -200,11 +200,12 @@ func Run(t *testing.T, opt *Opt) {
 		}
 	}
 
-	// Skip if remote is not SetTier capable
+	// Skip if remote is not SetTier and GetTier capable
 	skipIfNotSetTier := func(t *testing.T) {
 		skipIfNotOk(t)
-		if remote.Features().SetTier == false {
-			t.Skip("FS has no SetTier interface")
+		if remote.Features().SetTier == false ||
+			remote.Features().GetTier == false {
+			t.Skip("FS has no SetTier & GetTier interfaces")
 		}
 	}
 
@@ -1071,13 +1072,15 @@ func Run(t *testing.T, opt *Opt) {
 	t.Run("TestSetTier", func(t *testing.T) {
 		skipIfNotSetTier(t)
 		obj := findObject(t, remote, file1.Path)
-		lister, ok := obj.(fs.ListTierer)
-		assert.NotNil(t, ok)
-		supportedTiers := lister.ListTiers()
 		setter, ok := obj.(fs.SetTierer)
 		assert.NotNil(t, ok)
 		getter, ok := obj.(fs.GetTierer)
 		assert.NotNil(t, ok)
+		// If interfaces are supported TiersToTest should contain
+		// at least one entry
+		supportedTiers := opt.TiersToTest
+		assert.NotEmpty(t, supportedTiers)
+		// test set tier changes on supported storage classes or tiers
 		for _, tier := range supportedTiers {
 			err := setter.SetTier(tier)
 			assert.Nil(t, err)