From 132067a2012fb6bdabd23b52440d7e6b36e49e0b Mon Sep 17 00:00:00 2001
From: Joshua Peek <josh@joshpeek.com>
Date: Mon, 13 Jun 2011 22:06:08 -0500
Subject: [PATCH] Skip pygments tests if pygmentize isn't available

---
 lib/linguist/lexer.rb | 10 ++++++++++
 test/test_blob.rb     | 16 +++++++++-------
 test/test_language.rb | 24 +++++++++++++-----------
 test/test_lexer.rb    | 24 +++++++++++++-----------
 4 files changed, 45 insertions(+), 29 deletions(-)

diff --git a/lib/linguist/lexer.rb b/lib/linguist/lexer.rb
index 55119036..93537352 100644
--- a/lib/linguist/lexer.rb
+++ b/lib/linguist/lexer.rb
@@ -8,6 +8,16 @@ module Linguist
     @name_index  = {}
     @alias_index = {}
 
+    # Internal: Test if system has Pygments
+    #
+    # Only used in tests to disable tests that require Pygments.
+    #
+    # Returns true if `pygmentize` in is PATH otherwise false.
+    def self.has_pygments?
+      `which #{Albino.bin}`
+      $?.success?
+    end
+
     # Public: Get all Lexers
     #
     # Returns an Array of Lexers
diff --git a/test/test_blob.rb b/test/test_blob.rb
index 5872326b..8c87a368 100644
--- a/test/test_blob.rb
+++ b/test/test_blob.rb
@@ -289,19 +289,21 @@ class TestBlob < Test::Unit::TestCase
     assert_equal nil, blob("foo.rb").shebang_language
   end
 
-  def test_colorize
-    assert_equal <<-HTML, blob("foo.rb").colorize
+  if Lexer.has_pygments?
+    def test_colorize
+      assert_equal <<-HTML, blob("foo.rb").colorize
 <div class="highlight"><pre><span class="k">module</span> <span class="nn">Foo</span>
 <span class="k">end</span>
 </pre>
 </div>
-    HTML
-  end
+      HTML
+    end
 
-  def test_colorize_without_wrapper
-    assert_equal <<-HTML, blob("foo.rb").colorize_without_wrapper
+    def test_colorize_without_wrapper
+      assert_equal <<-HTML, blob("foo.rb").colorize_without_wrapper
 <span class="k">module</span> <span class="nn">Foo</span>
 <span class="k">end</span>
-    HTML
+      HTML
+    end
   end
 end
diff --git a/test/test_language.rb b/test/test_language.rb
index d22920c2..7050ddbd 100644
--- a/test/test_language.rb
+++ b/test/test_language.rb
@@ -337,31 +337,33 @@ class TestLanguage < Test::Unit::TestCase
     assert !Language['SQL'].searchable?
   end
 
-  def test_colorize
-    assert_equal <<-HTML, Language['Text'].colorize("Hello")
+  if Lexer.has_pygments?
+    def test_colorize
+      assert_equal <<-HTML, Language['Text'].colorize("Hello")
 <div class="highlight"><pre>Hello
 </pre>
 </div>
-    HTML
+      HTML
 
-    assert_equal <<-HTML, Language['Ruby'].colorize("def foo\n  'foo'\nend\n")
+      assert_equal <<-HTML, Language['Ruby'].colorize("def foo\n  'foo'\nend\n")
 <div class="highlight"><pre><span class="k">def</span> <span class="nf">foo</span>
   <span class="s1">&#39;foo&#39;</span>
 <span class="k">end</span>
 </pre>
 </div>
-    HTML
-  end
+      HTML
+    end
 
-  def test_colorize_without_wrapper
-    assert_equal <<-HTML, Language['Text'].colorize_without_wrapper("Hello")
+    def test_colorize_without_wrapper
+      assert_equal <<-HTML, Language['Text'].colorize_without_wrapper("Hello")
 Hello
-    HTML
+      HTML
 
-    assert_equal <<-HTML, Language['Ruby'].colorize_without_wrapper("def foo\n  'foo'\nend\n")
+      assert_equal <<-HTML, Language['Ruby'].colorize_without_wrapper("def foo\n  'foo'\nend\n")
 <span class="k">def</span> <span class="nf">foo</span>
   <span class="s1">&#39;foo&#39;</span>
 <span class="k">end</span>
-    HTML
+      HTML
+    end
   end
 end
diff --git a/test/test_lexer.rb b/test/test_lexer.rb
index 120726f1..06e335f2 100644
--- a/test/test_lexer.rb
+++ b/test/test_lexer.rb
@@ -50,31 +50,33 @@ class TestLexer < Test::Unit::TestCase
     assert !Lexer['Ruby'].eql?(Lexer.new('Ruby'))
   end
 
-  def test_colorize
-    assert_equal <<-HTML, Lexer['Text only'].colorize("Hello")
+  if Lexer.has_pygments?
+    def test_colorize
+      assert_equal <<-HTML, Lexer['Text only'].colorize("Hello")
 <div class="highlight"><pre>Hello
 </pre>
 </div>
-    HTML
+      HTML
 
-    assert_equal <<-HTML, Lexer['Ruby'].colorize("def foo\n  'foo'\nend\n")
+      assert_equal <<-HTML, Lexer['Ruby'].colorize("def foo\n  'foo'\nend\n")
 <div class="highlight"><pre><span class="k">def</span> <span class="nf">foo</span>
   <span class="s1">&#39;foo&#39;</span>
 <span class="k">end</span>
 </pre>
 </div>
-    HTML
-  end
+      HTML
+    end
 
-  def test_colorize_without_wrapper
-    assert_equal <<-HTML, Lexer['Text only'].colorize_without_wrapper("Hello")
+    def test_colorize_without_wrapper
+      assert_equal <<-HTML, Lexer['Text only'].colorize_without_wrapper("Hello")
 Hello
-    HTML
+      HTML
 
-    assert_equal <<-HTML, Lexer['Ruby'].colorize_without_wrapper("def foo\n  'foo'\nend\n")
+      assert_equal <<-HTML, Lexer['Ruby'].colorize_without_wrapper("def foo\n  'foo'\nend\n")
 <span class="k">def</span> <span class="nf">foo</span>
   <span class="s1">&#39;foo&#39;</span>
 <span class="k">end</span>
-    HTML
+      HTML
+    end
   end
 end