Add azure_helpers_test.go with getStorageAccount{Name,Key} tests

tempodb/backend/azure/azure_helpers_test.go

@@ -0,0 +1,62 @@
+package azure
+
+import (
+	"testing"
+
+	"github.com/grafana/dskit/flagext"
+	"github.com/stretchr/testify/assert"
+)
+
+const (
+	TestStorageAccountName = "foobar"
+	TestStorageAccountKey  = "abc123"
+)
+
+// TestGetStorageAccountName* explicitly broken out into
+// separate tests instead of table-driven due to usage of t.SetEnv
+func TestGetStorageAccountNameInConfig(t *testing.T) {
+	cfg := Config{StorageAccountName: TestStorageAccountName}
+
+	actual := getStorageAccountName(&cfg)
+	assert.Equal(t, TestStorageAccountName, actual)
+}
+
+func TestGetStorageAccountNameInEnv(t *testing.T) {
+	cfg := Config{}
+	t.Setenv("AZURE_STORAGE_ACCOUNT", TestStorageAccountName)
+
+	actual := getStorageAccountName(&cfg)
+	assert.Equal(t, TestStorageAccountName, actual)
+}
+
+func TestGetStorageAccountNameNotSet(t *testing.T) {
+	cfg := Config{}
+
+	actual := getStorageAccountName(&cfg)
+	assert.Equal(t, "", actual)
+}
+
+// TestGetStorageAccountKey* explicitly broken out into
+// separate tests instead of table-driven due to usage of t.SetEnv
+func TestGetStorageAccountKeyInConfig(t *testing.T) {
+	storageAccountKeySecret := flagext.SecretWithValue(TestStorageAccountKey)
+	cfg := Config{StorageAccountKey: storageAccountKeySecret}
+
+	actual := getStorageAccountKey(&cfg)
+	assert.Equal(t, TestStorageAccountKey, actual)
+}
+
+func TestGetStorageAccountKeyInEnv(t *testing.T) {
+	cfg := Config{}
+	t.Setenv("AZURE_STORAGE_KEY", TestStorageAccountKey)
+
+	actual := getStorageAccountKey(&cfg)
+	assert.Equal(t, TestStorageAccountKey, actual)
+}
+
+func TestGetStorageAccountKeyNotSet(t *testing.T) {
+	cfg := Config{}
+
+	actual := getStorageAccountKey(&cfg)
+	assert.Equal(t, "", actual)
+}