Add spec tests for compressed mode

lib/sass_spec/engine_adapter.rb

@@ -39,11 +39,11 @@ def describe
     @description
   end
 
-  def compile(sass_filename, precision)
+  def compile(sass_filename, precision, style)
     command = File.absolute_path(@command)
     dirname, basename = File.split(sass_filename)
     result = capture3_with_timeout(
-      command, "--precision", precision.to_s, "-t", "expanded",
+      command, "--precision", precision.to_s, "-t", style,
       "-I", File.absolute_path("spec"), *@args&.split(/\s+/), basename,
       binmode: true, timeout: @timeout, chdir: dirname)
 
@@ -106,7 +106,7 @@ def describe
     "dart-sass"
   end
 
-  def compile(sass_filename, precision)
+  def compile(sass_filename, precision, style)
     dirname, basename = File.split(sass_filename)
     @stdin.puts "!cd #{File.absolute_path(dirname)}"
     @stdin.puts("--no-color --no-unicode -I #{File.absolute_path("spec")} " +

lib/sass_spec/test_case.rb

@@ -171,7 +171,8 @@ def run(engine_adapter)
     @dir.with_real_files do
       engine_adapter.compile(
         File.join(@dir.path, @dir.glob("input.*").first),
-        @metadata.precision || 10)
+        @metadata.precision || 10,
+        @metadata.output_style || "expanded")
     end
   end
 

lib/sass_spec/test_case_metadata.rb

@@ -126,6 +126,10 @@ def precision
       @options[:precision]
     end
 
+    def output_style
+      @options[:output_style]
+    end
+
     def valid_for_impl?(impl)
       !ignore_for?(impl)
     end

spec/compressed/color.hrx

@@ -0,0 +1,10 @@
+<===> input.scss
+a {
+  b: yellow;
+  c: #FF9933;
+  d: #F00;
+}
+
+<===> output.css
+a{b:#ff0;c:#f93;d:red;}
+

spec/compressed/color/input.scss

@@ -0,0 +1,5 @@
+a {
+    b: yellow;
+    c: #FF9933;
+    c: #F00;
+}

spec/compressed/color/output.css

@@ -0,0 +1 @@
+a {b:#ff0;c:#f93;d:red;}

spec/compressed/comment.hrx

@@ -0,0 +1,6 @@
+<===> input.scss
+/*! preserve comment */
+/* remove when compressed */
+
+<===> output.css
+/*! preserve comment */

spec/compressed/comment/input.scss

@@ -0,0 +1,2 @@
+/*! preserve comment */
+/* remove when compressed */

spec/compressed/comment/output.css

@@ -0,0 +1 @@
+/*! preserve comment */

spec/compressed/options.yml

@@ -0,0 +1,2 @@
+---
+:output_style: compressed