diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..1870bf8
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,4 @@
+.gitignore
+.dockerignore
+Dockerfile
+README.md
diff --git a/.gitignore b/.gitignore
index 4fc0043..87c32f0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,7 @@
+# install
 .dotlock
-*.deb
\ No newline at end of file
+*.deb
+
+# pytest
+**/__pycache__
+**/.pytest_cache
diff --git a/.python-version b/.python-version
new file mode 100644
index 0000000..7c69a55
--- /dev/null
+++ b/.python-version
@@ -0,0 +1 @@
+3.7.0
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..167ae2e
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,47 @@
+from ubuntu:bionic
+
+# ---------------------------------------------------------------------------- #
+#   (usually) Cached steps
+# ---------------------------------------------------------------------------- #
+
+# Set variables up, FAST_MODE to prevent git and upgrade
+ENV FAST_MODE="true"
+ENV WORKSPACE="$HOME/workspace"
+
+# Install sudo for compatibility, git since it is skipped, make
+# Triple quiet mode (-qq implies -y, pipe to /dev/null)
+RUN apt-get -qq update && \
+    apt-get -qq install sudo git make \
+     < /dev/null > /dev/null
+
+# Create user with sudo priviledge
+ENV USER="test-user"
+RUN useradd --create-home -m $USER && \
+    adduser $USER sudo
+RUN echo "$USER ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers
+
+# ---------------------------------------------------------------------------- #
+#   Filesystem copy steps
+# ---------------------------------------------------------------------------- #
+
+# Copy dotfiles in
+ADD --chown=test-user . "$WORKSPACE/dotfiles"
+WORKDIR "$WORKSPACE/dotfiles"
+
+# Allow execution
+RUN chmod +x ./bootstrap.sh
+
+# ---------------------------------------------------------------------------- #
+#   Install steps
+# ---------------------------------------------------------------------------- #
+
+# Run installer
+USER test-user
+RUN make install
+
+# ---------------------------------------------------------------------------- #
+#   Test steps
+# ---------------------------------------------------------------------------- #
+
+# Run tests
+RUN make test || true
diff --git a/Makefile b/Makefile
index a95d7a2..7c5f042 100644
--- a/Makefile
+++ b/Makefile
@@ -2,6 +2,18 @@
 clean:
 	rm -f .dotlock
 
+.PHONY: install
+install:
+	bash bootstrap.sh
+
+.PHONY: test
+test:
+	bash test.sh
+
+.PHONY: build
+build:
+	docker build . -t dotfiles:latest
+
 .PHONY: run
 run:
-	bash bootstrap.sh
+	docker run -it dotfiles:latest /bin/bash
diff --git a/README.md b/README.md
index 9dd745f..0324df7 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,7 @@ Shell: 🐟 fish (+ fisher)
 Tools:
 * docker (+ docker-compose)
 * keybase
+* screenfetch
 
 Languages:
 * python (+ poetry, pyenv)
diff --git a/bash/.bashrc b/bash/.bashrc
new file mode 100644
index 0000000..fd3e09d
--- /dev/null
+++ b/bash/.bashrc
@@ -0,0 +1,7 @@
+# pyenv
+export PATH="$HOME/.pyenv/bin:$PATH"
+eval "$(pyenv init -)"
+eval "$(pyenv virtualenv-init -)"
+
+# poetry
+export PATH="$HOME/.poetry/bin:$PATH"
diff --git a/bootstrap.sh b/bootstrap.sh
index b8e5c6a..c2e4d67 100644
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -24,25 +24,32 @@
 # Configuration:
 #
 #   $REPOSITORY - GitHub repository to clone
-#       @default "andrejusk/dotfiles"
+#                 @default "andrejusk/dotfiles"
 #
 #   $WORKSPACE  - parent directory to clone repository into
-#       @default "$HOME/workspace"
+#                 @default "$HOME/workspace"
 #
 #   $INSTALLER  - installer file name
-#       @default "install.sh"
+#                 @default "install.sh"
+#
+#   $FAST_MODE  - whether to skip git (and speed up install steps)
+#                 @defualt unset
 #
 #
 set -o pipefail
 echo "setting up..."
 
 # Variables: $REPOSITORY
-if [ -z "$REPOSITORY" ]; then REPOSITORY="andrejusk/dotfiles"; fi
+if [ -z "$REPOSITORY" ]; then
+    REPOSITORY="andrejusk/dotfiles"
+fi
 readonly repository_url="git@github.com:$REPOSITORY.git"
 echo "using repository: $repository_url"
 
 # Variables: $WORKSPACE
-if [ -z "$WORKSPACE" ]; then WORKSPACE="$HOME/workspace"; fi
+if [ -z "$WORKSPACE" ]; then
+    WORKSPACE="$HOME/workspace"
+fi
 readonly dotfiles_dir="$WORKSPACE/dotfiles"
 echo "using dir: $dotfiles_dir"
 
@@ -51,23 +58,29 @@ if [ -z "$INSTALLER" ]; then INSTALLER="install.sh"; fi
 readonly installer="$dotfiles_dir/$INSTALLER"
 echo "using installer: $installer"
 
-# Ensure git is installed
-if ! [ -x "$(command -v git)" ]; then
-    echo "installing git..."
-    sudo apt-get update -qqy
-    sudo apt-get install git -qqy
-fi
+# Pull latest git if not skipped
+if [ -z "$FAST_MODE" ]; then
+
+    # Ensure git is installed
+    if ! [ -x "$(command -v git)" ]; then
+        echo "installing git..."
+        sudo apt-get update -qqy
+        sudo apt-get install git -qqy
+    fi
+
+    # Ensure latest is pulled
+    echo "pulling latest..."
+    if [[ ! -d $dotfiles_dir ]]; then
+        mkdir -p "$dotfiles_dir"
+        git clone -q "$repository_url" "$dotfiles_dir"
+    else
+        git --git-dir="$dotfiles_dir/.git" fetch -q
+        git --git-dir="$dotfiles_dir/.git" rebase -q --autostash FETCH_HEAD
+    fi
 
-# Ensure repository is up to date
-echo "pulling latest..."
-if [[ ! -d $dotfiles_dir ]]; then
-    mkdir -p "$dotfiles_dir"
-    git clone -q "$repository_url" "$dotfiles_dir"
-else
-    git --git-dir="$dotfiles_dir/.git" fetch -q
-    git --git-dir="$dotfiles_dir/.git" rebase -q --autostash FETCH_HEAD
 fi
 
 # Install dotfiles
 cd "$dotfiles_dir"
 source "$installer"
+echo "done!"
diff --git a/fish/config.fish b/fish/config.fish
index e127afe..16e5907 100644
--- a/fish/config.fish
+++ b/fish/config.fish
@@ -1,9 +1,7 @@
-# Ensure fisher is installed
-if not functions -q fisher
-    set -q XDG_CONFIG_HOME; or set XDG_CONFIG_HOME ~/.config
-    curl https://git.io/fisher --create-dirs -sLo $XDG_CONFIG_HOME/fish/functions/fisher.fish
-    fish -c fisher
-end
+# Pyenv
+export PATH="$HOME/.pyenv/bin:$PATH"
+eval (pyenv init -)
+eval (pyenv virtualenv-init -)
 
 # Poetry
 set -gx PATH $HOME/.poetry/bin $PATH
diff --git a/install/00-apt-pkglist b/install/00-apt-pkglist
index 4226899..6f9a05c 100644
--- a/install/00-apt-pkglist
+++ b/install/00-apt-pkglist
@@ -1,5 +1,7 @@
 curl
 make
 net-tools
+openssh-client
 openssh-server
 screenfetch
+software-properties-common
diff --git a/install/00-apt.sh b/install/00-apt.sh
index d17065c..0a39079 100644
--- a/install/00-apt.sh
+++ b/install/00-apt.sh
@@ -4,15 +4,16 @@
 #
 # Install list of packages in ./00-apt-pkglist
 #
-readonly package_list_file="00-apt-pkglist"
 
-# apt update and upgrade non-interactively
+# apt update, upgrade if not fast
 update
-upgrade
+if [ -z "$FAST_MODE" ]; then
+    upgrade
+fi
 
 # Package installs
-readonly package_list=$(cat $install_dir/$package_list_file) # Don't escape list
-install $package_list
+readonly package_list_file="$install_dir/00-apt-pkglist"
+install_file $package_list_file
 
 # Log version
-cat /etc/os-release
\ No newline at end of file
+cat /etc/os-release
diff --git a/install/01-bash.sh b/install/01-bash.sh
new file mode 100644
index 0000000..b9dd090
--- /dev/null
+++ b/install/01-bash.sh
@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+#
+# After running this script:
+#   1. bash dotfiles are symlinked
+#
+
+# 1. bash dotfiles are symlinked
+readonly bash_source="$dotfiles_dir/bash"
+readonly bash_target="$HOME"
+link_folder "$bash_source" "$bash_target"
+printf "bash dotfiles are linked\n"
diff --git a/install/01-fish.sh b/install/02-fish.sh
similarity index 81%
rename from install/01-fish.sh
rename to install/02-fish.sh
index e3cedc8..8d47f09 100644
--- a/install/01-fish.sh
+++ b/install/02-fish.sh
@@ -18,6 +18,11 @@ if not_installed "fish"; then
     # Install fish
     install fish
 
+    # Install fisher
+    set -q XDG_CONFIG_HOME; or set XDG_CONFIG_HOME ~/.config
+    curl https://git.io/fisher --create-dirs -sLo $XDG_CONFIG_HOME/fish/functions/fisher.fish
+    fish -c fisher
+
 fi
 printf "fish is installed\n"
 fish --version
diff --git a/install/02-ssh.sh b/install/03-ssh.sh
similarity index 100%
rename from install/02-ssh.sh
rename to install/03-ssh.sh
diff --git a/install/10-git.sh b/install/04-git.sh
similarity index 100%
rename from install/10-git.sh
rename to install/04-git.sh
diff --git a/install/20-pyenv.sh b/install/10-pyenv.sh
similarity index 69%
rename from install/20-pyenv.sh
rename to install/10-pyenv.sh
index 3ed3e16..6a7ba49 100644
--- a/install/20-pyenv.sh
+++ b/install/10-pyenv.sh
@@ -15,14 +15,20 @@ if not_installed "pyenv"; then
         libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev \
         xz-utils tk-dev libffi-dev liblzma-dev python-openssl git
 
+    # Add to install path
+    add_path "$HOME/.pyenv/bin"
+    
     # Install pyenv
     # see https://github.com/pyenv/pyenv-installer
-    run "https://github.com/pyenv/pyenv-installer/raw/master/bin/pyenv-installer" bash
+    run "https://github.com/pyenv/pyenv-installer/raw/master/bin/pyenv-installer" \
+        "bash"
+    refresh
 
-    # Add to install path and refresh
-    export PATH="$HOME/.pyenv/bin:$PATH"
-    hash -r
+    eval "$(pyenv init -)"
+    eval "$(pyenv virtualenv-init -)"
 
 fi
-printf "pyenv is installed\n"
+printf "pyenv is installed, upgrading...\n"
+readonly pyenv_root=$(pyenv root)
+git --git-dir="$pyenv_root" pull
 pyenv --version
diff --git a/install/11-python.sh b/install/11-python.sh
new file mode 100644
index 0000000..41c9dd4
--- /dev/null
+++ b/install/11-python.sh
@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+#
+# After running this script:
+#   1. python3 and pip3 are installed
+#
+
+# 1. python3 and pip3 are installed
+if not_installed "pip3"; then
+
+    printf "Installing python3 and pip3...\n"
+
+    pyenv install 3.7.0
+    pyenv global 3.7.0
+    pyenv local 3.7.0
+
+fi
+printf "python3 and pip3 are installed, upgrading...\n"
+pip3 install --upgrade pip
+python3 --version
+pip3 --version
diff --git a/install/22-poetry.sh b/install/12-poetry.sh
similarity index 61%
rename from install/22-poetry.sh
rename to install/12-poetry.sh
index cfc3212..b703bb4 100644
--- a/install/22-poetry.sh
+++ b/install/12-poetry.sh
@@ -10,7 +10,9 @@ if not_installed "poetry"; then
     printf "Installing poetry...\n"
 
     # Install poetry
-    run "https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py" "python"
+    pip3 install --user poetry
 
 fi
-printf "poetry is installed\n"
+printf "poetry is installed, upgrading...\n"
+pip3 install --upgrade poetry
+poetry --version
diff --git a/install/12-docker.sh b/install/20-docker.sh
similarity index 81%
rename from install/12-docker.sh
rename to install/20-docker.sh
index f5aa72a..f1b5551 100644
--- a/install/12-docker.sh
+++ b/install/20-docker.sh
@@ -27,6 +27,10 @@ if not_installed "docker"; then
     # Install
     install docker-ce
 
+    # Chown
+    sudo chown "$USER":"$USER" "$HOME/.docker" -R
+    sudo chmod g+rwx "$HOME/.docker" -R
+
 fi
 printf "docker is installed\n"
 docker --version
@@ -37,12 +41,12 @@ if not_installed "docker-compose"; then
     printf "Installing docker-compose...\n"
 
     # Docker-compose
-    readonly docker_compose_url="https://github.com/docker/compose/releases/download/1.21.2/docker-compose-$(uname -s)-$(uname -m)"
-    sudo curl -L "$docker_compose_url" -o /usr/local/bin/docker-compose
-    sudo chmod +x /usr/local/bin/docker-compose
+    pip3 install --user docker-compose
+
 
 fi
-printf "docker-compose is installed\n"
+printf "docker-compose is installed, upgrading\n"
+pip3 install --upgrade docker-compose
 docker-compose --version
 
 # 3. docker group exists
diff --git a/install/11-keybase.sh b/install/21-keybase.sh
similarity index 100%
rename from install/11-keybase.sh
rename to install/21-keybase.sh
diff --git a/install/21-python.sh b/install/21-python.sh
deleted file mode 100644
index f6fc84b..0000000
--- a/install/21-python.sh
+++ /dev/null
@@ -1,16 +0,0 @@
-#!/usr/bin/env bash
-#
-# After running this script:
-#   1. python is installed
-#
-
-# 1. python is installed
-if not_installed "python"; then
-
-    printf "Installing python...\n"
-
-    pyenv install -s 3.7.0
-    pyenv global 3.7.0
-
-fi
-printf "python is installed\n"
diff --git a/install/99-apt-clean.sh b/install/99-apt-clean.sh
index f59f349..10af6e3 100644
--- a/install/99-apt-clean.sh
+++ b/install/99-apt-clean.sh
@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
 
 # Clean up
-sudo apt-get -qqy autoremove
-sudo apt-get -qqy autoclean
+sudo apt-get -y autoremove
+sudo apt-get -y autoclean
diff --git a/ssh/config b/ssh/config
index bda6558..fef79b8 100644
--- a/ssh/config
+++ b/ssh/config
@@ -2,4 +2,4 @@ Host *
   IgnoreUnknown UseKeychain
   UseKeychain yes
   AddKeysToAgent yes
-  IdentityFile ~/.ssh/id_rsa
\ No newline at end of file
+  IdentityFile ~/.ssh/id_rsa
diff --git a/test.sh b/test.sh
new file mode 100644
index 0000000..0092d91
--- /dev/null
+++ b/test.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+#
+# Invokes all test scripts.
+#
+set -euo pipefail
+
+cd ./tests
+poetry install
+poetry run pytest
diff --git a/tests/poetry.lock b/tests/poetry.lock
new file mode 100644
index 0000000..d926550
--- /dev/null
+++ b/tests/poetry.lock
@@ -0,0 +1,212 @@
+[[package]]
+category = "dev"
+description = "Atomic file writes."
+marker = "sys_platform == \"win32\""
+name = "atomicwrites"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "1.3.0"
+
+[[package]]
+category = "dev"
+description = "Classes Without Boilerplate"
+name = "attrs"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "19.3.0"
+
+[package.extras]
+azure-pipelines = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface", "pytest-azurepipelines"]
+dev = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface", "sphinx", "pre-commit"]
+docs = ["sphinx", "zope.interface"]
+tests = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface"]
+
+[[package]]
+category = "dev"
+description = "Cross-platform colored terminal text."
+marker = "sys_platform == \"win32\""
+name = "colorama"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+version = "0.4.3"
+
+[[package]]
+category = "dev"
+description = "Read metadata from Python packages"
+marker = "python_version < \"3.8\""
+name = "importlib-metadata"
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
+version = "1.5.0"
+
+[package.dependencies]
+zipp = ">=0.5"
+
+[package.extras]
+docs = ["sphinx", "rst.linker"]
+testing = ["packaging", "importlib-resources"]
+
+[[package]]
+category = "dev"
+description = "More routines for operating on iterables, beyond itertools"
+name = "more-itertools"
+optional = false
+python-versions = ">=3.5"
+version = "8.2.0"
+
+[[package]]
+category = "dev"
+description = "Core utilities for Python packages"
+name = "packaging"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "20.1"
+
+[package.dependencies]
+pyparsing = ">=2.0.2"
+six = "*"
+
+[[package]]
+category = "dev"
+description = "plugin and hook calling mechanisms for python"
+name = "pluggy"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "0.13.1"
+
+[package.dependencies]
+[package.dependencies.importlib-metadata]
+python = "<3.8"
+version = ">=0.12"
+
+[package.extras]
+dev = ["pre-commit", "tox"]
+
+[[package]]
+category = "dev"
+description = "library with cross-python path, ini-parsing, io, code, log facilities"
+name = "py"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "1.8.1"
+
+[[package]]
+category = "dev"
+description = "Python parsing module"
+name = "pyparsing"
+optional = false
+python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
+version = "2.4.6"
+
+[[package]]
+category = "dev"
+description = "pytest: simple powerful testing with Python"
+name = "pytest"
+optional = false
+python-versions = ">=3.5"
+version = "5.3.5"
+
+[package.dependencies]
+atomicwrites = ">=1.0"
+attrs = ">=17.4.0"
+colorama = "*"
+more-itertools = ">=4.0.0"
+packaging = "*"
+pluggy = ">=0.12,<1.0"
+py = ">=1.5.0"
+wcwidth = "*"
+
+[package.dependencies.importlib-metadata]
+python = "<3.8"
+version = ">=0.12"
+
+[package.extras]
+checkqa-mypy = ["mypy (v0.761)"]
+testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests", "xmlschema"]
+
+[[package]]
+category = "dev"
+description = "Python 2 and 3 compatibility utilities"
+name = "six"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
+version = "1.14.0"
+
+[[package]]
+category = "dev"
+description = "Measures number of Terminal column cells of wide-character codes"
+name = "wcwidth"
+optional = false
+python-versions = "*"
+version = "0.1.8"
+
+[[package]]
+category = "dev"
+description = "Backport of pathlib-compatible object wrapper for zip files"
+marker = "python_version < \"3.8\""
+name = "zipp"
+optional = false
+python-versions = ">=3.6"
+version = "3.0.0"
+
+[package.extras]
+docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
+testing = ["jaraco.itertools", "func-timeout"]
+
+[metadata]
+content-hash = "76f248e0ec62688089444c71c5e62af7c3ca83978a893d09e6592e3621985fab"
+python-versions = "^3.7"
+
+[metadata.files]
+atomicwrites = [
+    {file = "atomicwrites-1.3.0-py2.py3-none-any.whl", hash = "sha256:03472c30eb2c5d1ba9227e4c2ca66ab8287fbfbbda3888aa93dc2e28fc6811b4"},
+    {file = "atomicwrites-1.3.0.tar.gz", hash = "sha256:75a9445bac02d8d058d5e1fe689654ba5a6556a1dfd8ce6ec55a0ed79866cfa6"},
+]
+attrs = [
+    {file = "attrs-19.3.0-py2.py3-none-any.whl", hash = "sha256:08a96c641c3a74e44eb59afb61a24f2cb9f4d7188748e76ba4bb5edfa3cb7d1c"},
+    {file = "attrs-19.3.0.tar.gz", hash = "sha256:f7b7ce16570fe9965acd6d30101a28f62fb4a7f9e926b3bbc9b61f8b04247e72"},
+]
+colorama = [
+    {file = "colorama-0.4.3-py2.py3-none-any.whl", hash = "sha256:7d73d2a99753107a36ac6b455ee49046802e59d9d076ef8e47b61499fa29afff"},
+    {file = "colorama-0.4.3.tar.gz", hash = "sha256:e96da0d330793e2cb9485e9ddfd918d456036c7149416295932478192f4436a1"},
+]
+importlib-metadata = [
+    {file = "importlib_metadata-1.5.0-py2.py3-none-any.whl", hash = "sha256:b97607a1a18a5100839aec1dc26a1ea17ee0d93b20b0f008d80a5a050afb200b"},
+    {file = "importlib_metadata-1.5.0.tar.gz", hash = "sha256:06f5b3a99029c7134207dd882428a66992a9de2bef7c2b699b5641f9886c3302"},
+]
+more-itertools = [
+    {file = "more-itertools-8.2.0.tar.gz", hash = "sha256:b1ddb932186d8a6ac451e1d95844b382f55e12686d51ca0c68b6f61f2ab7a507"},
+    {file = "more_itertools-8.2.0-py3-none-any.whl", hash = "sha256:5dd8bcf33e5f9513ffa06d5ad33d78f31e1931ac9a18f33d37e77a180d393a7c"},
+]
+packaging = [
+    {file = "packaging-20.1-py2.py3-none-any.whl", hash = "sha256:170748228214b70b672c581a3dd610ee51f733018650740e98c7df862a583f73"},
+    {file = "packaging-20.1.tar.gz", hash = "sha256:e665345f9eef0c621aa0bf2f8d78cf6d21904eef16a93f020240b704a57f1334"},
+]
+pluggy = [
+    {file = "pluggy-0.13.1-py2.py3-none-any.whl", hash = "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"},
+    {file = "pluggy-0.13.1.tar.gz", hash = "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0"},
+]
+py = [
+    {file = "py-1.8.1-py2.py3-none-any.whl", hash = "sha256:c20fdd83a5dbc0af9efd622bee9a5564e278f6380fffcacc43ba6f43db2813b0"},
+    {file = "py-1.8.1.tar.gz", hash = "sha256:5e27081401262157467ad6e7f851b7aa402c5852dbcb3dae06768434de5752aa"},
+]
+pyparsing = [
+    {file = "pyparsing-2.4.6-py2.py3-none-any.whl", hash = "sha256:c342dccb5250c08d45fd6f8b4a559613ca603b57498511740e65cd11a2e7dcec"},
+    {file = "pyparsing-2.4.6.tar.gz", hash = "sha256:4c830582a84fb022400b85429791bc551f1f4871c33f23e44f353119e92f969f"},
+]
+pytest = [
+    {file = "pytest-5.3.5-py3-none-any.whl", hash = "sha256:ff615c761e25eb25df19edddc0b970302d2a9091fbce0e7213298d85fb61fef6"},
+    {file = "pytest-5.3.5.tar.gz", hash = "sha256:0d5fe9189a148acc3c3eb2ac8e1ac0742cb7618c084f3d228baaec0c254b318d"},
+]
+six = [
+    {file = "six-1.14.0-py2.py3-none-any.whl", hash = "sha256:8f3cd2e254d8f793e7f3d6d9df77b92252b52637291d0f0da013c76ea2724b6c"},
+    {file = "six-1.14.0.tar.gz", hash = "sha256:236bdbdce46e6e6a3d61a337c0f8b763ca1e8717c03b369e87a7ec7ce1319c0a"},
+]
+wcwidth = [
+    {file = "wcwidth-0.1.8-py2.py3-none-any.whl", hash = "sha256:8fd29383f539be45b20bd4df0dc29c20ba48654a41e661925e612311e9f3c603"},
+    {file = "wcwidth-0.1.8.tar.gz", hash = "sha256:f28b3e8a6483e5d49e7f8949ac1a78314e740333ae305b4ba5defd3e74fb37a8"},
+]
+zipp = [
+    {file = "zipp-3.0.0-py3-none-any.whl", hash = "sha256:12248a63bbdf7548f89cb4c7cda4681e537031eda29c02ea29674bc6854460c2"},
+    {file = "zipp-3.0.0.tar.gz", hash = "sha256:7c0f8e91abc0dc07a5068f315c52cb30c66bfbc581e5b50704c8a2f6ebae794a"},
+]
diff --git a/tests/pyproject.toml b/tests/pyproject.toml
new file mode 100644
index 0000000..4ef3159
--- /dev/null
+++ b/tests/pyproject.toml
@@ -0,0 +1,15 @@
+[tool.poetry]
+name = "dotfiles-test"
+version = "0.0.0"
+description = "Verifies dotfiles install"
+authors = ["andrejus <hi@andrejus.uk>"]
+
+[tool.poetry.dependencies]
+python = "^3.7"
+
+[tool.poetry.dev-dependencies]
+pytest = "^5.3.5"
+
+[build-system]
+requires = ["poetry>=0.12"]
+build-backend = "poetry.masonry.api"
diff --git a/tests/test_binaries.py b/tests/test_binaries.py
new file mode 100644
index 0000000..d811f9a
--- /dev/null
+++ b/tests/test_binaries.py
@@ -0,0 +1,43 @@
+#!/usr/bin/env python3
+#
+# Verifies dotfiles install
+#
+from distutils.spawn import find_executable
+from typing import List
+import pytest
+
+
+# List of binaries to test
+binaries: List[str] = [
+
+    # shells
+    "sh", "bash", "fish",
+
+    # tools
+    "git",
+    "keybase",
+    "docker", "docker-compose",
+    "screenfetch",
+
+    # languages
+    "pyenv",
+    "python3",
+    "poetry",
+    
+]
+
+
+def binary_in_path(binary: str) -> bool:
+    """ 
+    Helper function to check whether `binary` is in PATH.    
+    """
+
+    return find_executable(binary) is not None
+
+
+@pytest.mark.parametrize("binary", binaries)
+def test_binaries(binary: str):
+    """
+    Asserts all binaries are in PATH.
+    """
+    assert binary_in_path(binary)
diff --git a/utils.sh b/utils.sh
index d907abe..85c1c97 100644
--- a/utils.sh
+++ b/utils.sh
@@ -4,20 +4,27 @@
 #
 
 update() {
-    sudo apt-get update -y
+    sudo apt-get update -qq
 }
 
 # Non-interactive upgrade
 upgrade() {
     DEBIAN_FRONTEND=noninteractive \
-        sudo apt-get dist-upgrade -y \
+        sudo apt-get dist-upgrade -qq \
         -o Dpkg::Options::="--force-confdef" \
         -o Dpkg::Options::="--force-confold"
 }
 
 # @arg $1 packages to install
 install() {
-    sudo apt-get install -y $1
+    sudo apt-get install -qq $1
+    refresh
+}
+
+# @arg $1 package list file to install
+install_file() {
+    sudo apt-get install -qq $(cat $1)
+    refresh
 }
 
 # @arg $1 repository to add
@@ -41,6 +48,7 @@ run() {
 # @arg $1 source folder
 # @arg $2 target folder
 link_folder() {
+    mkdir -p $2
     cp -srf $1/. $2
 }
 
@@ -51,6 +59,18 @@ not_installed() {
     ! [ -x "$(command -v $1)" ]
 }
 
+# Refreshes PATH
+refresh() {
+    hash -r
+}
+
+# Add to PATH and refresh
+# @arg $1 path to add to PATH
+add_path() {
+    export PATH="$1:$PATH"
+    refresh
+}
+
 # Colors
 C_BLACK='\033[0;30m'
 C_DGRAY='\033[1;30m'