diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..27cc115
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+## Environment normalisation:
+/.bundle/
+/vendor/bundle
+/lib/bundler/man/
+.vim-flavor
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..c75617f
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,5 @@
+language: ruby
+rvm:
+  - 2.2.3
+script:
+  rake ci
diff --git a/Gemfile b/Gemfile
new file mode 100644
index 0000000..a87f4e1
--- /dev/null
+++ b/Gemfile
@@ -0,0 +1,3 @@
+source 'https://rubygems.org'
+
+gem 'vim-flavor', '~> 1.1'
diff --git a/Gemfile.lock b/Gemfile.lock
new file mode 100644
index 0000000..4573d1a
--- /dev/null
+++ b/Gemfile.lock
@@ -0,0 +1,19 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    blankslate (3.1.3)
+    parslet (1.7.1)
+      blankslate (>= 2.0, <= 4.0)
+    thor (0.19.1)
+    vim-flavor (1.1.5)
+      parslet (~> 1.0)
+      thor (~> 0.14)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  vim-flavor (~> 1.1)
+
+BUNDLED WITH
+   1.10.6
diff --git a/Rakefile b/Rakefile
new file mode 100644
index 0000000..63a3a36
--- /dev/null
+++ b/Rakefile
@@ -0,0 +1,11 @@
+#!/usr/bin/env rake
+
+task :ci => [:dump, :test]
+
+task :dump do
+  sh 'vim --version'
+end
+
+task :test do
+  sh 'bundle exec vim-flavor test'
+end
diff --git a/VimFlavor b/VimFlavor
new file mode 100644
index 0000000..226f354
--- /dev/null
+++ b/VimFlavor
@@ -0,0 +1,4 @@
+# Since flavorfile is parsed as a Ruby script,
+# you can comment out arbitrary lines like this.
+
+# flavor '$foo_uri', '~> 1.0'
diff --git a/VimFlavor.lock b/VimFlavor.lock
new file mode 100644
index 0000000..04a9504
--- /dev/null
+++ b/VimFlavor.lock
@@ -0,0 +1 @@
+kana/vim-vspec (1.6.1)
diff --git a/autoload/requirements.vim b/autoload/requirements.vim
index d515034..32055a1 100644
--- a/autoload/requirements.vim
+++ b/autoload/requirements.vim
@@ -12,11 +12,11 @@ endif
 
 
 function! requirements#matched_filename(filename)
-    if a:filename =~# '\v.*require(ment)?s\.(txt|in)'
+    if a:filename =~# '\v.*require(ment)?s\.(txt|in)$'
         return 1
     endif
 
-    if a:filename =~# '\v.require(ment)?s/.*\.(txt|in)'
+    if a:filename =~# '\vrequire(ment)?s/.*\.(txt|in)$'
         return 1
     endif
 
@@ -24,6 +24,8 @@ function! requirements#matched_filename(filename)
         \ && a:filename =~# g:requirements#detect_filename_pattern
         return 1
     endif
+
+    return 0
 endfunction
 
 let &cpo = s:save_cpo
diff --git a/t/test_ftdetect.vim b/t/test_ftdetect.vim
new file mode 100644
index 0000000..629e731
--- /dev/null
+++ b/t/test_ftdetect.vim
@@ -0,0 +1,43 @@
+filetype plugin on
+runtime! plugin/requirements.vim
+
+describe 'enable: requirements#matched_filename()'
+    it 'to enable file type detection: basic filename'
+        Expect requirements#matched_filename('requirements.txt') to_be_true
+        Expect requirements#matched_filename('requires.txt') to_be_true
+    end
+
+    it 'to enable file type detection: pip-tools filename'
+        Expect requirements#matched_filename('requirements.in') to_be_true
+        Expect requirements#matched_filename('requires.in') to_be_true
+    end
+
+    it 'to enable file type detection: directory structure'
+        Expect requirements#matched_filename('requirements/dev.txt') to_be_true
+        Expect requirements#matched_filename('requires/tests.in') to_be_true
+    end
+end
+
+describe 'disable: requirements#matched_filename()'
+    it 'to enable file type detection: basic filename'
+        Expect requirements#matched_filename('requirements.text') to_be_false
+    end
+
+    it 'to enable file type detection: pip-tools filename'
+        Expect requirements#matched_filename('requirements.ini') to_be_false
+    end
+
+    it 'to enable file type detection: directory structure'
+        Expect requirements#matched_filename('require/dev.txt') to_be_false
+    end
+end
+
+describe 'g:requirements#detect_filename_pattern'
+    it 'use g:requirements#detect_filename_pattern'
+        Expect requirements#matched_filename('freeze.txt') to_be_false
+        let g:requirements#detect_filename_pattern = 'freeze'
+        Expect requirements#matched_filename('freeze.txt') to_be_true
+    end
+end
+
+" vim: et sw=4 ts=4 sts=4: