Adds more unit tests

index.css

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+#navbar {
+  width: 80%;
+  height: 23px; }
+
+#navbar ul {
+  list-style-type: none; }
+
+#navbar li {
+  float: left; }
+  #navbar li a {
+    font-weight: bold; }

test/functions/colorBlue.scss

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+@function colorBlue() {
+  @return #0000fe;
+}

test/image_path.scss

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+body {
+	background-image: image-url('image.png');
+}

test/include_path.scss

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+@import "vars";
+@import "colorBlue";
+
+body { background: $color; color: colorBlue(); }

test/included_files.scss

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+@import "sample.scss";
+@import "image_path.scss";

test/index.css

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+#navbar {
+  width: 80%;
+  height: 23px; }
+
+#navbar ul {
+  list-style-type: none; }
+
+#navbar li {
+  float: left; }
+  #navbar li a {
+    font-weight: bold; }

test/lib/vars.scss

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+$color: red;

test/sample.js

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+exports.input = '#navbar {\
+  width: 80%;\
+  height: 23px; }\
+  #navbar ul {\
+    list-style-type: none; }\
+  #navbar li {\
+    float: left;\
+    a {\
+      font-weight: bold; }}\
+  @mixin keyAnimation($name, $attr, $value) {\
+    @-webkit-keyframes #{$name} {\
+      0%   { #{$attr}: $value; }\
+    }\
+  }';
+
+// Note that the bad
+exports.badInput = '#navbar \n\
+  width: 80%';
+
+exports.expectedRender = '#navbar {\n\
+  width: 80%;\n\
+  height: 23px; }\n\
+\n\
+#navbar ul {\n\
+  list-style-type: none; }\n\
+\n\
+#navbar li {\n\
+  float: left; }\n\
+  #navbar li a {\n\
+    font-weight: bold; }\n';

test/sample.scss

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+#navbar {
+  width: 80%;
+  height: 23px;
+}
+#navbar ul {
+  list-style-type: none;
+}
+#navbar li {
+  float: left;
+  a {
+    font-weight: bold;
+  }
+}