spec/unit/converter_spec.rb in middleman-webp-0.1.0 vs spec/unit/converter_spec.rb in middleman-webp-0.2.0

@@ -1,16 +1,47 @@
 require "spec_helper"
+require "pathname"
 require_relative "../../lib/middleman-webp/converter"
 
 describe Middleman::WebP::Converter do
   before do
-    @converter = Middleman::WebP::Converter.new(nil, nil)
+    @converter = Middleman::WebP::Converter.new(nil, {}, nil)
   end
 
+  describe "#change_percentage" do
+    it "returns how many percents smaller destination file is" do
+      src = stub(:size => 10000)
+      dst = stub(:size => 8746)
+      @converter.change_percentage(src, dst).must_equal "12.54 %"
+    end
+
+    it "omits zeroes in the end of decimal part" do
+      src = stub(:size => 100)
+      dst = stub(:size => 76)
+      @converter.change_percentage(src, dst).must_equal "24 %"
+    end
+  end
+
   describe "#number_to_human_size" do
     it "uses human readable unit" do
       @converter.number_to_human_size(100).must_equal "100 B"
       @converter.number_to_human_size(1234).must_equal "1.21 KiB"
       @converter.number_to_human_size(2_634_234).must_equal "2.51 MiB"
+    end
+  end
+
+  describe "#tool_for" do
+    it "uses gif2webp for gif files" do
+      path = Pathname.new("/some/path/image.gif")
+      @converter.tool_for(path).must_equal "gif2webp"
+    end
+
+    it "uses cwebp for jpeg, png and tiff files" do
+      path = Pathname.new("/some/path/image.jpg")
+      @converter.tool_for(path).must_equal "cwebp"
+      path = Pathname.new("/some/path/image.png")
+      @converter.tool_for(path).must_equal "cwebp"
+      path = Pathname.new("/some/path/image.tiff")
+      @converter.tool_for(path).must_equal "cwebp"
     end
   end
 end