official extname tests

test/basename_test.rb

@@ -1,39 +1,6 @@
 require 'test_helper'
 
 class BasenameTest < Minitest::Test
-	DRIVE = Dir.pwd[%r'\A(?:[a-z]:|//[^/]+/[^/]+)'i]
-	POSIX = /cygwin|mswin|bccwin|mingw|emx/ !~ RUBY_PLATFORM
-	NTFS = !(/mingw|mswin|bccwin/ !~ RUBY_PLATFORM)
-
-	def regular_file
-		return @file if defined? @file
-		@file = make_tmp_filename("file")
-		make_file("foo", @file)
-		@file
-	end
-
-	def make_tmp_filename(prefix)
-		"#{@dir}/#{prefix}.test"
-	end
-
-  def make_file(content, file)
-    open(file, "w") {|fh| fh << content }
-  end
-
-	def assert_incompatible_encoding
-		d = "\u{3042}\u{3044}".encode("utf-16le")
-		assert_raises(Encoding::CompatibilityError) {yield d}
-		m = Class.new {define_method(:to_path) {d}}
-		assert_raises(Encoding::CompatibilityError) {yield m.new}
-	end
-
-  def utf8_file
-    return @utf8file if defined? @utf8file
-    @utf8file = make_tmp_filename("\u3066\u3059\u3068")
-    make_file("foo", @utf8file)
-    @utf8file
-  end
-
 	def setup
 		@dir = Dir.mktmpdir("rubytest-file")
 		File.chown(-1, Process.gid, @dir)

test/extname_test.rb

@@ -1,6 +1,43 @@
 require 'test_helper'
 
 class ExtnameTest < Minitest::Test
+	def setup
+		@dir = Dir.mktmpdir("rubytest-file")
+		File.chown(-1, Process.gid, @dir)
+	end
+
+	def teardown
+		GC.start
+		FileUtils.remove_entry_secure @dir
+	end
+
+  def test_extname_official
+    assert_equal(".test", FasterPath.extname(regular_file))
+    assert_equal(".test", FasterPath.extname(utf8_file))
+    prefixes = ["", "/", ".", "/.", "bar/.", "/bar/."]
+    infixes = ["", " ", "."]
+    infixes2 = infixes + [".ext "]
+    appendixes = [""]
+    if NTFS
+      appendixes << " " << "." << "::$DATA" << "::$DATA.bar"
+    end
+    prefixes.each do |prefix|
+      appendixes.each do |appendix|
+        infixes.each do |infix|
+          path = "#{prefix}foo#{infix}#{appendix}"
+          assert_equal("", FasterPath.extname(path), "FasterPath.extname(#{path.inspect})")
+        end
+        infixes2.each do |infix|
+          path = "#{prefix}foo#{infix}.ext#{appendix}"
+          assert_equal(".ext", FasterPath.extname(path), "FasterPath.extname(#{path.inspect})")
+        end
+      end
+    end
+    # bug3175 = '[ruby-core:29627]'
+    # assert_equal(".rb", FasterPath.extname("/tmp//bla.rb"), bug3175)
+    assert_incompatible_encoding {|d| FasterPath.extname(d)} if ENV['ENCODING'] = true
+  end
+
   def test_extname
     assert_equal ".rb", FasterPath.extname("foo.rb")
     assert_equal ".rb", FasterPath.extname("/foo/bar.rb")
@@ -27,8 +64,8 @@ def test_extname_edge_cases
   def test_substitutability_of_rust_and_ruby_impls
     result_pair = lambda do |str|
       [
-          File.send(:extname, str),
-          FasterPath.extname(str)
+        File.send(:extname, str),
+        FasterPath.extname(str)
       ]
     end
     assert_equal( *result_pair.("foo.rb")                    )

test/test_helper.rb

@@ -23,3 +23,40 @@
 require 'color_pound_spec_reporter'
 
 Minitest::Reporters.use! [ColorPoundSpecReporter.new]
+
+::Minitest::Assertions.module_eval do
+	def assert_incompatible_encoding
+		d = "\u{3042}\u{3044}".encode("utf-16le")
+		assert_raises(Encoding::CompatibilityError) {yield d}
+		m = Class.new {define_method(:to_path) {d}}
+		assert_raises(Encoding::CompatibilityError) {yield m.new}
+	end
+end
+
+::Minitest::Test.class_eval do
+	DRIVE = Dir.pwd[%r'\A(?:[a-z]:|//[^/]+/[^/]+)'i]
+	POSIX = /cygwin|mswin|bccwin|mingw|emx/ !~ RUBY_PLATFORM
+	NTFS = !(/mingw|mswin|bccwin/ !~ RUBY_PLATFORM)
+
+	def regular_file
+		return @file if defined? @file
+		@file = make_tmp_filename("file")
+		make_file("foo", @file)
+		@file
+	end
+
+	def make_tmp_filename(prefix)
+		"#{@dir}/#{prefix}.test"
+	end
+
+  def make_file(content, file)
+    open(file, "w") {|fh| fh << content }
+  end
+
+  def utf8_file
+    return @utf8file if defined? @utf8file
+    @utf8file = make_tmp_filename("\u3066\u3059\u3068")
+    make_file("foo", @utf8file)
+    @utf8file
+  end
+end