diff --git a/.gitignore b/.gitignore
index 6a222e9..e69de29 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +0,0 @@
-*.py[oc]
-tests/generated.py
diff --git a/Dockerfile b/Dockerfile
deleted file mode 100644
index 75809f3..0000000
--- a/Dockerfile
+++ /dev/null
@@ -1,16 +0,0 @@
-# A workflow with docker is still uncertain.
-# Keep watching below file and other module's situation.
-# https://github.com/container-images/container-image-template/blob/master/Dockerfile.template
-FROM registry.fedoraproject.org/f26-modular/boltron
-
-WORKDIR /build
-COPY . .
-
-ENV LC_CTYPE C.UTF-8
-
-RUN dnf -y update
-RUN dnf -y --nodocs install \
-  ruby \
-  && dnf -y clean all
-
-CMD /bin/bash
diff --git a/Makefile b/Makefile
deleted file mode 100644
index cd54e7a..0000000
--- a/Makefile
+++ /dev/null
@@ -1,14 +0,0 @@
-DOCKER_IMAGE=ruby
-
-default: test
-
-build-docker:
-	docker build -t $(DOCKER_IMAGE) . 
-
-test-nspawn:
-	MODULE=nspawn $(MAKE) -C tests test
-
-test-docker: build-docker
-	MODULE=docker URL=docker=$(DOCKER_IMAGE) $(MAKE) -C tests test
-
-test: test-nspawn test-docker
diff --git a/ruby.yaml b/ruby.yaml
index 96906e0..729b206 100644
--- a/ruby.yaml
+++ b/ruby.yaml
@@ -2,7 +2,7 @@
 document: modulemd
 version: 2
 data:
-  stream: 2.7
+  stream: 3.0
   summary: An interpreter of object-oriented scripting language
   description: >-
     Ruby is the interpreted scripting language for quick and easy object-oriented
@@ -55,27 +55,27 @@ data:
     rpms:
       ruby:
         rationale: An interpreter of object-oriented scripting language
-        ref: stream-ruby-2.7-rhel-8.5.0
+        ref: stream-ruby-3.0-rhel-8.5.0
         buildorder: 101
         multilib: [x86_64]
       rubygem-abrt:
         rationale: ABRT support for Ruby
-        ref: stream-ruby-2.7-rhel-8.5.0
+        ref: stream-ruby-3.0-rhel-8.5.0
         buildorder: 102
       rubygem-bson:
         rationale: Ruby Implementation of the BSON specification
-        ref: stream-ruby-2.7-rhel-8.5.0
+        ref: stream-ruby-3.0-rhel-8.5.0
         buildorder: 102
       rubygem-mongo:
         rationale: Ruby driver for MongoDB
-        ref: stream-ruby-2.7-rhel-8.5.0
+        ref: stream-ruby-3.0-rhel-8.5.0
         buildorder: 103
       rubygem-mysql2:
         rationale: A simple, fast Mysql library for Ruby, binding to libmysql
-        ref: stream-ruby-2.7-rhel-8.5.0
+        ref: stream-ruby-3.0-rhel-8.5.0
         buildorder: 102
       rubygem-pg:
         rationale: A Ruby interface to the PostgreSQL RDBMS
-        ref: stream-ruby-2.7-rhel-8.5.0
+        ref: stream-ruby-3.0-rhel-8.5.0
         buildorder: 102
 ...
diff --git a/tests/Makefile b/tests/Makefile
deleted file mode 100644
index 6683583..0000000
--- a/tests/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-# Installation
-# https://meta-test-family.readthedocs.io/en/latest/installation.html#installing-mtf
-test:
-	mtf-env-set
-	mtf-generator
-	mtf -l *.py
diff --git a/tests/config.yaml b/tests/config.yaml
deleted file mode 100644
index 491e3bf..0000000
--- a/tests/config.yaml
+++ /dev/null
@@ -1,15 +0,0 @@
-document: modularity-testing
-version: 1
-name: ruby
-modulemd-url: https://src.fedoraproject.org/cgit/modules/ruby.git/plain/ruby.yaml
-packages:
-    rpms:
-        - ruby
-module:
-    rpm:
-        url: http://ftp.fi.muni.cz/pub/linux/fedora/linux/releases/26/Everything/x86_64/os/
-    docker:
-        url: docker.io/centos/ruby-23-centos7
-test:
-    version:
-        - 'ruby -v'