1 files changed, 43 insertions, 0 deletions
diff --git a/node_modules/chroma-js/test/interpolate-test.coffee b/node_modules/chroma-js/test/interpolate-test.coffee
new file mode 100644
index 0000000000..c035d6604d
--- /dev/null
+++ b/node_modules/chroma-js/test/interpolate-test.coffee
@@ -0,0 +1,43 @@
+require 'es6-shim'
+vows = require 'vows'
+assert = require 'assert'
+chroma = require '../chroma'
+
+
+vows
+    .describe('Some tests for chroma.color()')
+
+    .addBatch
+
+        'hsv interpolation white <-> red':
+            topic: chroma('white').interpolate(0.5, 'red', 'hsv')
+            'works': (topic) -> assert.deepEqual topic.hex(), '#ff8080'
+
+        'hsl interpolation white <-> red':
+            topic: chroma('white').interpolate(0.5, 'red', 'hsl')
+            'works': (topic) -> assert.deepEqual topic.hex(), '#ff8080'
+
+        'rgb interpolation white <-> red':
+            topic: chroma('white').interpolate(0.5, 'red', 'rgb')
+            'works': (topic) -> assert.deepEqual topic.hex(), '#ff7f7f'
+
+        'hsv interpolation red <-> white':
+            topic: chroma('red').interpolate(0.5, 'white', 'hsv')
+            'works': (topic) -> assert.deepEqual topic.hex(), '#ff8080'
+
+        'hsl interpolation red <-> white':
+            topic: chroma('red').interpolate(0.5, 'white', 'hsl')
+            'works': (topic) -> assert.deepEqual topic.hex(), '#ff8080'
+
+        'rgb interpolation red <-> white':
+            topic: chroma('red').interpolate(0.5, 'white', 'rgb')
+            'works': (topic) -> assert.deepEqual topic.hex(), '#ff7f7f'
+
+        'interpolation short function':
+            topic: () ->
+                (t) -> chroma.interpolate('#ff0000', '#ffffff', t, 'hsv').hex()
+            'starts at red': (topic) -> assert.equal topic(0), '#ff0000'
+            'goes over light red': (topic) -> assert.equal topic(0.5), '#ff8080'
+            'ends at white': (topic) -> assert.equal topic(1), '#ffffff'
+
+    .export(module)