* test/ruby/test_transcode.rb: added tests from Martin Duerst <duerst

  AT it.aoyama.ac.jp>.  [ruby-dev:32532]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14192 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 59 insertions, 28 deletions

diff --git a/test/ruby/test_transcode.rb b/test/ruby/test_transcode.rb
index b4c8170a3b..39ab9be474 100644
--- a/test/ruby/test_transcode.rb
+++ b/test/ruby/test_transcode.rb
@@ -1,15 +1,8 @@
 # -*- encoding: US-ASCII -*-   # make sure this runs in binary mode
 
-class String
-  # different name, because we should be able to remove this later
-  def fix_encoding (encoding)
-    force_encoding(encoding)
-  end
-end
-
 require 'test/unit'
 class TestConvert < Test::Unit::TestCase
-  def test_can_call
+  def test_basic
     # we don't have semantics for conversion without attribute yet
     # maybe 'convert to UTF-8' would be nice :-)
     assert_raise(ArgumentError) { 'abc'.encode }
@@ -20,25 +13,63 @@ class TestConvert < Test::Unit::TestCase
     assert_raise(ArgumentError) { 'abc'.encode!('foo', 'bar') }
     assert_raise(ArgumentError) { 'abc'.force_encoding('utf-8').encode('foo') }
     assert_raise(ArgumentError) { 'abc'.force_encoding('utf-8').encode!('foo') }
-    assert_equal('abc'.force_encoding('utf-8').encode('iso-8859-1'), 'abc') # temporary, fix encoding
-    assert_equal("D\xFCrst".force_encoding('iso-8859-1').encode('utf-8').fix_encoding('utf-8'), "D\u00FCrst")
-    assert_equal("D\xFCrst".encode('utf-8', 'iso-8859-1').fix_encoding('utf-8'), "D\u00FCrst")
-    assert_equal("D\xFCrst".encode('utf-8', 'iso-8859-2').fix_encoding('utf-8'), "D\u00FCrst")
-    assert_equal("D\xFCrst".encode('utf-8', 'iso-8859-3').fix_encoding('utf-8'), "D\u00FCrst")
-    assert_equal("D\xFCrst".encode('utf-8', 'iso-8859-4').fix_encoding('utf-8'), "D\u00FCrst")
-    assert_equal("D\xFCrst".encode('utf-8', 'iso-8859-9').fix_encoding('utf-8'), "D\u00FCrst")
-    assert_equal("D\xFCrst".encode('utf-8', 'iso-8859-10').fix_encoding('utf-8'), "D\u00FCrst")
-    assert_equal("D\xFCrst".encode('utf-8', 'iso-8859-13').fix_encoding('utf-8'), "D\u00FCrst")
-    assert_equal("D\xFCrst".encode('utf-8', 'iso-8859-14').fix_encoding('utf-8'), "D\u00FCrst")
-    assert_equal("D\xFCrst".encode('utf-8', 'iso-8859-15').fix_encoding('utf-8'), "D\u00FCrst")
-    assert_equal("D\u00FCrst".encode('iso-8859-1'), "D\xFCrst")
-    assert_equal("D\u00FCrst".encode('iso-8859-2'), "D\xFCrst")
-    assert_equal("D\u00FCrst".encode('iso-8859-3'), "D\xFCrst")
-    assert_equal("D\u00FCrst".encode('iso-8859-4'), "D\xFCrst")
-    assert_equal("D\u00FCrst".encode('iso-8859-9'), "D\xFCrst")
-    assert_equal("D\u00FCrst".encode('iso-8859-10'), "D\xFCrst")
-    assert_equal("D\u00FCrst".encode('iso-8859-13'), "D\xFCrst")
-    assert_equal("D\u00FCrst".encode('iso-8859-14'), "D\xFCrst")
-    assert_equal("D\u00FCrst".encode('iso-8859-15'), "D\xFCrst")
+    assert_equal('abc'.force_encoding('utf-8').encode('iso-8859-1'), 'abc')
+    # check that encoding is kept when no conversion is done
+    assert_equal('abc'.force_encoding('Shift_JIS').encode('Shift_JIS'), 'abc'.force_encoding('Shift_JIS'))
+    assert_equal('abc'.force_encoding('Shift_JIS').encode!('Shift_JIS'), 'abc'.force_encoding('Shift_JIS'))
+    # assert that encoding is correctly set
+    assert_equal("D\xFCrst".force_encoding('iso-8859-1').encode('utf-8').encoding, "D\u00FCrst".encoding)
+    # check that Encoding can be used as parameter
+    assert_equal("D\xFCrst".encode('utf-8', Encoding.find('ISO-8859-1')), "D\u00FCrst")
+    assert_equal("D\xFCrst".encode(Encoding.find('utf-8'), 'ISO-8859-1'), "D\u00FCrst")
+    assert_equal("D\xFCrst".encode(Encoding.find('utf-8'), Encoding.find('ISO-8859-1')), "D\u00FCrst")
+
+    # temporary, fix encoding
+    assert_equal("D\xFCrst".force_encoding('iso-8859-1').encode('utf-8'), "D\u00FCrst")
+    assert_equal("D\xFCrst".encode('utf-8', 'iso-8859-1'), "D\u00FCrst")
+    assert_equal("D\xFCrst".encode('utf-8', 'iso-8859-2'), "D\u00FCrst")
+    assert_equal("D\xFCrst".encode('utf-8', 'iso-8859-3'), "D\u00FCrst")
+    assert_equal("D\xFCrst".encode('utf-8', 'iso-8859-4'), "D\u00FCrst")
+    assert_equal("D\xFCrst".encode('utf-8', 'iso-8859-9'), "D\u00FCrst")
+    assert_equal("D\xFCrst".encode('utf-8', 'iso-8859-10'), "D\u00FCrst")
+    assert_equal("D\xFCrst".encode('utf-8', 'iso-8859-13'), "D\u00FCrst")
+    assert_equal("D\xFCrst".encode('utf-8', 'iso-8859-14'), "D\u00FCrst")
+    assert_equal("D\xFCrst".encode('utf-8', 'iso-8859-15'), "D\u00FCrst")
+    assert_equal("D\u00FCrst".encode('iso-8859-1'), "D\xFCrst".force_encoding('iso-8859-1'))
+    assert_equal("D\u00FCrst".encode('iso-8859-2'), "D\xFCrst".force_encoding('iso-8859-2'))
+    assert_equal("D\u00FCrst".encode('iso-8859-3'), "D\xFCrst".force_encoding('iso-8859-3'))
+    assert_equal("D\u00FCrst".encode('iso-8859-4'), "D\xFCrst".force_encoding('iso-8859-4'))
+    assert_equal("D\u00FCrst".encode('iso-8859-9'), "D\xFCrst".force_encoding('iso-8859-9'))
+    assert_equal("D\u00FCrst".encode('iso-8859-10'), "D\xFCrst".force_encoding('iso-8859-10'))
+    assert_equal("D\u00FCrst".encode('iso-8859-13'), "D\xFCrst".force_encoding('iso-8859-13'))
+    assert_equal("D\u00FCrst".encode('iso-8859-14'), "D\xFCrst".force_encoding('iso-8859-14'))
+    assert_equal("D\u00FCrst".encode('iso-8859-15'), "D\xFCrst".force_encoding('iso-8859-15'))
+    # test length extension
+    assert_equal(("\xA4"*20).encode('utf-8', 'iso-8859-15'), "\u20AC"*20)
+    assert_equal(("\xA4"*20).encode!('utf-8', 'iso-8859-15'), "\u20AC"*20)
+    
+  end
+  
+  def test_all_bytes
+    encodings_8859 = [
+      'ISO-8859-1', 'ISO-8859-2',
+      #'ISO-8859-3', # not all bytes used
+      'ISO-8859-4', 'ISO-8859-5',
+      #'ISO-8859-6', # not all bytes used
+      #'ISO-8859-7', # not all bytes used
+      #'ISO-8859-8', # not all bytes used
+      'ISO-8859-9', 'ISO-8859-10',
+      #'ISO-8859-11', # not all bytes used
+      #'ISO-8859-12', # not available
+      'ISO-8859-13','ISO-8859-14','ISO-8859-15',
+      #'ISO-8859-16', # not available
+    ]
+    all_bytes = (0..255).collect {|x| x}.pack 'C*'
+    test_start = all_bytes
+    test_start.encode('UTF-8','ISO-8859-1').encode('ISO-8859-1')
+    encodings_8859.each do |enc|
+      test_start = all_bytes
+      assert_equal(test_start.encode('UTF-8',enc).encode(enc).force_encoding('ASCII-8BIT'), test_start) 
+    end
   end
 end