1 files changed, 24 insertions, 0 deletions
diff --git a/node_modules/chroma-js/test/contrast-test.coffee b/node_modules/chroma-js/test/contrast-test.coffee
new file mode 100644
index 0000000000..9897ea0bcd
--- /dev/null
+++ b/node_modules/chroma-js/test/contrast-test.coffee
@@ -0,0 +1,24 @@
+require 'es6-shim'
+vows = require 'vows'
+assert = require 'assert'
+chroma = require '../chroma'
+
+
+vows
+    .describe('Testing contrast ratio')
+
+    .addBatch
+
+        'maximum contrast':
+            topic: -> chroma.contrast 'black', 'white'
+            'is 21:1': (topic) -> assert.equal topic, 21
+
+        'minimum contrast':
+            topic: -> chroma.contrast 'white', 'white'
+            'is 1:1': (topic) -> assert.equal topic, 1
+
+        'contrast between white and red':
+            topic: -> chroma.contrast 'red', 'white'
+            'is 4:1': (topic) -> assert.equal Math.round(topic,5), 4
+
+    .export(module)
+\ No newline at end of file