switch remaining textile test files to markdown

Textile support was removed from jekyll core in #3319, and most of the
tests switched to markdown at that time.  This changes the remaining
tests to use markdown as well.  The vast majority of the test cases were
testing things in the file name or front matter, so it doesn't really
matter what markup format they use.  The one test that was claiming to
test that textile was transformed had actually been moved to markdown as
well, just not renamed.

Fixes #3507

test/test_excerpt.rb

@@ -88,7 +88,7 @@ class TestExcerpt < JekyllUnitTest
         assert_gets_called = false
         klass.send(:define_method, :assert_gets_called) { assert_gets_called = true }
         klass.const_set(:EXCERPT_ATTRIBUTES_FOR_LIQUID, Jekyll::Post::EXCERPT_ATTRIBUTES_FOR_LIQUID + ['assert_gets_called'])
-        post = klass.new(@site, source_dir, '', "2008-02-02-published.textile")
+        post = klass.new(@site, source_dir, '', "2008-02-02-published.markdown")
         Jekyll::Excerpt.new(post).to_liquid
 
         assert assert_gets_called, 'assert_gets_called did not get called on post.'

test/test_post.rb

@@ -82,14 +82,14 @@ class TestPost < JekyllUnitTest
         post = Post.allocate
         post.categories = ['foo']
         post.site = @site
-        post.process("cat1/2008-09-09-foo-bar.textile")
+        post.process("cat1/2008-09-09-foo-bar.markdown")
         assert_equal 1, post.categories.size
         assert_equal "foo", post.categories[0]
 
         post = Post.allocate
         post.categories = ['foo', 'bar']
         post.site = @site
-        post.process("cat2/CAT3/2008-09-09-foo-bar.textile")
+        post.process("cat2/CAT3/2008-09-09-foo-bar.markdown")
         assert_equal 2, post.categories.size
         assert_equal "foo", post.categories[0]
         assert_equal "bar", post.categories[1]
@@ -104,7 +104,7 @@ class TestPost < JekyllUnitTest
 
       should "raise a good error on invalid post date" do
         assert_raises Jekyll::Errors::FatalException do
-          @post.process("2009-27-03-foo-bar.textile")
+          @post.process("2009-27-03-foo-bar.markdown")
         end
       end
 
@@ -131,7 +131,7 @@ class TestPost < JekyllUnitTest
       end
 
       should "respect permalink in yaml front matter" do
-        file = "2008-12-03-permalinked-post.textile"
+        file = "2008-12-03-permalinked-post.markdown"
         @post.process(file)
         @post.read_yaml(@source, file)
 
@@ -230,7 +230,7 @@ class TestPost < JekyllUnitTest
 
         context "with specified layout of nil" do
           setup do
-            file = '2013-01-12-nil-layout.textile'
+            file = '2013-01-12-nil-layout.markdown'
             @post = setup_post(file)
             @post.process(file)
           end
@@ -369,7 +369,7 @@ class TestPost < JekyllUnitTest
         assert_equal "# {{ page.title }}\n\nBest **post** ever", @post.content
       end
 
-      should "transform textile" do
+      should "transform markdown" do
         @post.process(@real_file)
         @post.read_yaml(@source, @real_file)
         assert_equal "<h1 id=\"pagetitle-\">{{ page.title }}</h1>\n\n<p>Best <strong>post</strong> ever</p>", @post.transform.strip
@@ -461,8 +461,8 @@ class TestPost < JekyllUnitTest
       setup do
         clear_dest
         @site = fixture_site
-        @site.posts = [setup_post('2008-02-02-published.textile'),
+        @site.posts = [setup_post('2008-02-02-published.markdown'),
-                       setup_post('2009-01-27-categories.textile')]
+                       setup_post('2009-01-27-categories.markdown')]
       end
 
       should "have next post" do
@@ -511,7 +511,7 @@ class TestPost < JekyllUnitTest
       end
 
       should "to_liquid prioritizes post attributes over data" do
-        post = setup_post("2010-01-16-override-data.textile")
+        post = setup_post("2010-01-16-override-data.markdown")
         assert_equal Array, post.tags.class
         assert_equal Array, post.to_liquid["tags"].class
         assert_equal Time, post.date.class
@@ -523,36 +523,36 @@ class TestPost < JekyllUnitTest
         assert_gets_called = false
         klass.send(:define_method, :assert_gets_called) { assert_gets_called = true }
         klass.const_set(:EXCERPT_ATTRIBUTES_FOR_LIQUID, Jekyll::Post::EXCERPT_ATTRIBUTES_FOR_LIQUID + ['assert_gets_called'])
-        post = klass.new(@site, source_dir, '', "2008-02-02-published.textile")
+        post = klass.new(@site, source_dir, '', "2008-02-02-published.markdown")
         do_render(post)
 
         assert assert_gets_called, 'assert_gets_called did not get called on post.'
       end
 
       should "recognize category in yaml" do
-        post = setup_post("2009-01-27-category.textile")
+        post = setup_post("2009-01-27-category.markdown")
         assert post.categories.include?('foo')
       end
 
       should "recognize several categories in yaml" do
-        post = setup_post("2009-01-27-categories.textile")
+        post = setup_post("2009-01-27-categories.markdown")
         assert post.categories.include?('foo')
         assert post.categories.include?('bar')
         assert post.categories.include?('baz')
       end
 
       should "recognize empty category in yaml" do
-        post = setup_post("2009-01-27-empty-category.textile")
+        post = setup_post("2009-01-27-empty-category.markdown")
         assert_equal [], post.categories
       end
 
       should "recognize empty categories in yaml" do
-        post = setup_post("2009-01-27-empty-categories.textile")
+        post = setup_post("2009-01-27-empty-categories.markdown")
         assert_equal [], post.categories
       end
 
       should "recognize number category in yaml" do
-        post = setup_post("2013-05-10-number-category.textile")
+        post = setup_post("2013-05-10-number-category.markdown")
         assert post.categories.include?('2013')
         assert !post.categories.include?(2013)
       end
@@ -564,34 +564,34 @@ class TestPost < JekyllUnitTest
       end
 
       should "recognize tag in yaml" do
-        post = setup_post("2009-05-18-tag.textile")
+        post = setup_post("2009-05-18-tag.markdown")
         assert post.tags.include?('code')
       end
 
       should "recognize tags in yaml" do
-        post = setup_post("2009-05-18-tags.textile")
+        post = setup_post("2009-05-18-tags.markdown")
         assert post.tags.include?('food')
         assert post.tags.include?('cooking')
         assert post.tags.include?('pizza')
       end
 
       should "recognize empty tag in yaml" do
-        post = setup_post("2009-05-18-empty-tag.textile")
+        post = setup_post("2009-05-18-empty-tag.markdown")
         assert_equal [], post.tags
       end
 
       should "recognize empty tags in yaml" do
-        post = setup_post("2009-05-18-empty-tags.textile")
+        post = setup_post("2009-05-18-empty-tags.markdown")
         assert_equal [], post.tags
       end
 
       should "allow no yaml" do
-        post = setup_post("2009-06-22-no-yaml.textile")
+        post = setup_post("2009-06-22-no-yaml.markdown")
         assert_equal "No YAML.", post.content
       end
 
       should "allow empty yaml" do
-        post = setup_post("2009-06-22-empty-yaml.textile")
+        post = setup_post("2009-06-22-empty-yaml.markdown")
         assert_equal "Empty YAML.", post.content
       end
 
@@ -691,7 +691,7 @@ class TestPost < JekyllUnitTest
     end
 
     should "generate categories and topics" do
-      post = Post.new(@site, File.join(File.dirname(__FILE__), *%w[source]), 'foo', 'bar/2008-12-12-topical-post.textile')
+      post = Post.new(@site, File.join(File.dirname(__FILE__), *%w[source]), 'foo', 'bar/2008-12-12-topical-post.markdown')
       assert_equal ['foo'], post.categories
     end
   end
@@ -756,12 +756,12 @@ class TestPost < JekyllUnitTest
     end
 
     should "return category if post does not specify category" do
-      post = setup_post("2009-01-27-no-category.textile")
+      post = setup_post("2009-01-27-no-category.markdown")
       assert post.categories.include?('article'), "Expected post.categories to include 'article' but did not."
     end
 
     should "override site category if set on post" do
-      post = setup_post("2009-01-27-category.textile")
+      post = setup_post("2009-01-27-category.markdown")
       assert post.categories.include?('foo'), "Expected post.categories to include 'foo' but did not."
       assert !post.categories.include?('article'), "Did not expect post.categories to include 'article' but it did."
     end
@@ -779,12 +779,12 @@ class TestPost < JekyllUnitTest
     end
 
     should "return categories if post does not specify categories" do
-      post = setup_post("2009-01-27-no-category.textile")
+      post = setup_post("2009-01-27-no-category.markdown")
       assert post.categories.include?('article'), "Expected post.categories to include 'article' but did not."
     end
 
     should "override site categories if set on post" do
-      post = setup_post("2009-01-27-categories.textile")
+      post = setup_post("2009-01-27-categories.markdown")
       ['foo', 'bar', 'baz'].each do |category|
         assert post.categories.include?(category), "Expected post.categories to include '#{category}' but did not."
       end