diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 00000000..a1745beb
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,4 @@
+sudo: false
+install: git clone --depth 1 https://github.com/sstephenson/bats.git
+script: PATH="./bats/bin:$PATH" test/run
+language: c
diff --git a/README.md b/README.md
index d903facd..5d3e9e10 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Bash it
 
-[![Join the chat at https://gitter.im/Bash-it/bash-it](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/Bash-it/bash-it?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+[![Build Status](https://travis-ci.org/ipoval/bash-it.svg?branch=master)](https://travis-ci.org/ipoval/bash-it) [![Join the chat at https://gitter.im/Bash-it/bash-it](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/Bash-it/bash-it?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 
 **Bash it** is a collection of community bash commands and scripts. (And a shameless ripoff of [oh-my-zsh](https://github.com/robbyrussell/oh-my-zsh). :)
 
diff --git a/lib/composure.sh b/lib/composure.bash
similarity index 100%
rename from lib/composure.sh
rename to lib/composure.bash
diff --git a/plugins/available/dirs.plugin.bash b/plugins/available/dirs.plugin.bash
index 283b51b0..2946d772 100644
--- a/plugins/available/dirs.plugin.bash
+++ b/plugins/available/dirs.plugin.bash
@@ -55,7 +55,6 @@ function dirs-help() {
   echo "9	: Chance to stack location 9."
 }
 
-
 # ADD BOOKMARKing functionality
 # usage:
 
diff --git a/test/README.md b/test/README.md
new file mode 100644
index 00000000..281b1b6f
--- /dev/null
+++ b/test/README.md
@@ -0,0 +1,4 @@
+## Testing with [Bats](https://github.com/sstephenson/bats#installing-bats-from-source)
+```
+bats test/{lib,plugins}
+```
diff --git a/test/lib/composure.bats b/test/lib/composure.bats
new file mode 100755
index 00000000..af4bc8cf
--- /dev/null
+++ b/test/lib/composure.bats
@@ -0,0 +1,9 @@
+#!/usr/bin/env bats
+
+load ../test_helper
+load ../../lib/composure
+
+@test "lib composure: composure_keywords()" {
+  run composure_keywords
+  assert_output "about author example group param version"
+}
diff --git a/test/plugins/ruby.plugin.bats b/test/plugins/ruby.plugin.bats
new file mode 100755
index 00000000..d3bbd70d
--- /dev/null
+++ b/test/plugins/ruby.plugin.bats
@@ -0,0 +1,15 @@
+#!/usr/bin/env bats
+
+load ../test_helper
+load ../../lib/composure
+load ../../plugins/available/ruby.plugin
+
+@test "plugins ruby: remove_gem is defined" {
+  run type remove_gem
+  assert_line 1 "remove_gem () "
+}
+
+@test "plugins ruby: PATH includes ~/.gem/ruby/bin" {
+  last_path_entry=$(echo $PATH | tr ":" "\n" | tail -1);
+  [[ "${last_path_entry}" == "${HOME}"/.gem/ruby/*/bin ]]
+}
diff --git a/test/run b/test/run
new file mode 100755
index 00000000..1fb11518
--- /dev/null
+++ b/test/run
@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -e
+
+exec bats ${CI:+--tap} test/{lib,plugins}
diff --git a/test/test_helper.bash b/test/test_helper.bash
new file mode 100644
index 00000000..da34c438
--- /dev/null
+++ b/test/test_helper.bash
@@ -0,0 +1,87 @@
+unset BASH_IT
+unset BASH_IT_THEME
+unset GIT_HOSTING
+unset NGINX_PATH
+unset IRC_CLIENT
+unset TODO
+unset SCM_CHECK
+
+BASH_IT_TEST_DIR="${BATS_TMPDIR}/bash_it"
+
+teardown() {
+  rm -rf "$BASH_IT_TEST_DIR"
+}
+
+assert() {
+  if ! "$@"; then
+    flunk "failed: $@"
+  fi
+}
+
+flunk() {
+  { if [ "$#" -eq 0 ]; then cat -
+    else echo "$@"
+    fi
+  } | sed "s:${BASH_IT_TEST_DIR}:TEST_DIR:g" >&2
+  return 1
+}
+
+assert_success() {
+  if [ "$status" -ne 0 ]; then
+    flunk "command failed with exit status $status"
+  elif [ "$#" -gt 0 ]; then
+    assert_output "$1"
+  fi
+}
+
+assert_failure() {
+  if [ "$status" -eq 0 ]; then
+    flunk "expected failed exit status"
+  elif [ "$#" -gt 0 ]; then
+    assert_output "$1"
+  fi
+}
+
+assert_equal() {
+  if [ "$1" != "$2" ]; then
+    { echo "expected: $1"
+      echo "actual:   $2"
+    } | flunk
+  fi
+}
+
+assert_output() {
+  local expected
+  if [ $# -eq 0 ]; then expected="$(cat -)"
+  else expected="$1"
+  fi
+  assert_equal "$expected" "$output"
+}
+
+assert_line() {
+  if [ "$1" -ge 0 ] 2>/dev/null; then
+    assert_equal "$2" "${lines[$1]}"
+  else
+    local line
+    for line in "${lines[@]}"; do
+      if [ "$line" = "$1" ]; then return 0; fi
+    done
+    flunk "expected line \`$1'"
+  fi
+}
+
+refute_line() {
+  if [ "$1" -ge 0 ] 2>/dev/null; then
+    local num_lines="${#lines[@]}"
+    if [ "$1" -lt "$num_lines" ]; then
+      flunk "output has $num_lines lines"
+    fi
+  else
+    local line
+    for line in "${lines[@]}"; do
+      if [ "$line" = "$1" ]; then
+        flunk "expected to not find line \`$line'"
+      fi
+    done
+  fi
+}