Initial release of Discourse

spec/components/image_sizer_spec.rb

@@ -0,0 +1,42 @@
+require 'spec_helper'
+require 'image_sizer'
+
+describe ImageSizer do
+
+  before do
+    SiteSetting.expects(:max_image_width).returns(500)
+  end
+
+  it 'returns the same dimensions if the width is less than the maximum' do
+    ImageSizer.resize(400, 200).should == [400, 200]
+  end
+
+  it 'returns nil if the width is nil' do
+    ImageSizer.resize(nil, 100).should be_nil
+  end
+
+  it 'returns nil if the height is nil' do
+    ImageSizer.resize(100, nil).should be_nil
+  end
+
+  it 'works with string parameters' do
+    ImageSizer.resize('100', '101').should == [100, 101]
+  end
+
+  describe 'when larger than the maximum' do
+
+    before do
+      @w, @h = ImageSizer.resize(600, 123)
+    end
+
+    it 'returns the maxmimum width if larger than the maximum' do
+      @w.should == 500
+    end
+
+    it 'resizes the height retaining the aspect ratio' do
+      @h.should == 102
+    end
+    
+  end
+
+end