Run test_migrate tests on CI

Now that we've resolved the issue with the invalid git repository in the
parent commit, we can run all of the tests in our CI environment.

test/test_migrate.rb

@@ -25,62 +25,60 @@ def load_script(**args)
   end
 end
 
-unless ENV['CI']
-  context '4.x -> 5.x tag migrator' do
-    include Rack::Test::Methods
+context '4.x -> 5.x tag migrator' do
+  include Rack::Test::Methods
 
-    setup do
-      @path = cloned_testpath("examples/lotr_migration.git")
-    end
+  setup do
+    @path = cloned_testpath("examples/lotr_migration.git")
+  end
 
-    test 'repair broken links' do
-      # The original contents of Subdir/Foo.md:
-      #
-      # waa
-      # [[Samwi]]
-      # [[samwise gamgee.mediaWiki]]
-      # [[Samwise Gamgee.mediawiki]]
-      # [[Samwise Gamgee]]
-      # [[Test|Samwise Gamgee#Anchor]]
-      # [[Waaa|Test]]
-      # [[Zaa]]
-      #
-      # The contents will be updated after running the migration script.
-      load_script
+  test 'repair broken links' do
+    # The original contents of Subdir/Foo.md:
+    #
+    # waa
+    # [[Samwi]]
+    # [[samwise gamgee.mediaWiki]]
+    # [[Samwise Gamgee.mediawiki]]
+    # [[Samwise Gamgee]]
+    # [[Test|Samwise Gamgee#Anchor]]
+    # [[Waaa|Test]]
+    # [[Zaa]]
+    #
+    # The contents will be updated after running the migration script.
+    load_script
 
-      file = ::File.new(::File.join(@path, 'Subdir/Foo.md'), 'r')
-      assert_equal <<~FILE_CONTENTS, file.read
-        waa
-        [[Samwi]]
-        [[/Samwise Gamgee.mediawiki]]
-        [[/Samwise Gamgee.mediawiki]]
-        [[/Samwise Gamgee.md]]
-        [[Test|/Samwise Gamgee.md#Anchor]]
-        [[Waaa|/Bar/Test.md]]
-        [[Subsub/Zaa.md]]
-      FILE_CONTENTS
-    end
+    file = ::File.new(::File.join(@path, 'Subdir/Foo.md'), 'r')
+    assert_equal <<~FILE_CONTENTS, file.read
+      waa
+      [[Samwi]]
+      [[/Samwise Gamgee.mediawiki]]
+      [[/Samwise Gamgee.mediawiki]]
+      [[/Samwise Gamgee.md]]
+      [[Test|/Samwise Gamgee.md#Anchor]]
+      [[Waaa|/Bar/Test.md]]
+      [[Subsub/Zaa.md]]
+    FILE_CONTENTS
+  end
 
-    test 'change spaced filenames to hyphenated filenames' do
-      load_script(hyphenate: true)
+  test 'change spaced filenames to hyphenated filenames' do
+    load_script(hyphenate: true)
 
-      f = ::File.new(::File.join(@path, 'Home.textile'), 'r')
-      output = f.read
-      assert_equal true, output.include?('[[Bilbo-Baggins.md]]')
-      assert_equal true, output.include?('[[evil|Mordor/Eye-Of-Sauron.md]]')
-    end
+    f = ::File.new(::File.join(@path, 'Home.textile'), 'r')
+    output = f.read
+    assert_equal true, output.include?('[[Bilbo-Baggins.md]]')
+    assert_equal true, output.include?('[[evil|Mordor/Eye-Of-Sauron.md]]')
+  end
 
-    test 'migration with page file dir' do
-      load_script(page_file_dir: 'Subdir')
+  test 'migration with page file dir' do
+    load_script(page_file_dir: 'Subdir')
 
-      f = ::File.new(::File.join(@path, 'Subdir/Foo.md'), 'r')
-      output = f.read
-      assert_equal true, output.include?('[[Subsub/Zaa.md]]')
-      assert_equal true, output.include?('[[Samwi]]')
-    end
+    f = ::File.new(::File.join(@path, 'Subdir/Foo.md'), 'r')
+    output = f.read
+    assert_equal true, output.include?('[[Subsub/Zaa.md]]')
+    assert_equal true, output.include?('[[Samwi]]')
+  end
 
-    teardown do
-      FileUtils.rm_rf(@path)
-    end
+  teardown do
+    FileUtils.rm_rf(@path)
   end
 end