Allowing capitals in topic regex (#418)

Fix regarding support case 00098704

Fixes #419

internal/provider/resource_streaming_topic.go

@@ -542,7 +542,7 @@ func (t *StreamingTopicResourceModel) generateStreamingTopicID() string {
 
 var (
 	streamingTopicIDPattern = `^([a-z][a-z0-9-]*):(persistent|non-persistent)://` +
-		`([a-z][a-z0-9-]*)/([a-z][a-z0-9-]*)/([a-z][a-z0-9-._]*)$`
+		`([a-z][a-z0-9-]*)/([a-z][a-z0-9-]*)/([a-zA-Z][a-zA-Z0-9-._]*)$`
 	streamingTopicIDRegex = regexp.MustCompile(streamingTopicIDPattern)
 )
 

internal/provider/resource_streaming_topic_test.go

@@ -93,3 +93,20 @@ func TestParseStreamingTopicID(t *testing.T) {
 	assert.True(t, topic.Partitioned.ValueBool())
 	assert.Equal(t, "non-persistent://my-tenant/my-namespace/topic1", topic.getTopicFQN())
 }
+
+func TestTopicNameValidation(t *testing.T) {
+	topicID := "my-cluster:persistent://my-tenant/my-namespace/this.Topic-is_valid123-DLQ"
+	topic, err := parseStreamingTopicID(topicID)
+	assert.Nil(t, err)
+	assert.Equal(t, "this.Topic-is_valid123-DLQ", topic.Topic.ValueString())
+
+	invalidTopics := []string{
+		"my-cluster:persistent://my-tenant/my-namespace/this.Topic-isnt$valid123",
+		"my-cluster:persistent://my-tenant/my-namespace/1this.Topic-isnt_valid123",
+		"my-cluster:persistent://my-tenant/my-namespace/this.Topic-isnt_valid123+",
+	}
+	for _, topicID := range invalidTopics {
+		topic, err = parseStreamingTopicID(topicID)
+		assert.NotNil(t, err)
+	}
+}