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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2011-01-30 04:01:58 +0000
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2011-01-30 04:01:58 +0000
commitf989f7c7ea89bb0b4a120666f5e85c0a81c9b44c (patch)
tree4103aa778fddb2ac2c431b1c555fe51be7b7fa0c /test/-ext-/string
parent4dcc883d06cdc0f933fe83f307c7c6a5c1e41d05 (diff)
* string.c (rb_str_ellipsize): new function to ellipsize a string.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30729 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test/-ext-/string')
-rw-r--r--test/-ext-/string/test_ellipsize.rb46
1 files changed, 46 insertions, 0 deletions
diff --git a/test/-ext-/string/test_ellipsize.rb b/test/-ext-/string/test_ellipsize.rb
new file mode 100644
index 00000000000..6ef7d0a1a3e
--- /dev/null
+++ b/test/-ext-/string/test_ellipsize.rb
@@ -0,0 +1,46 @@
+require 'test/unit'
+require "-test-/string/string"
+
+class Test_StringEllipsize < Test::Unit::TestCase
+ def setup
+ @foobar = Bug::String.new("foobar")
+ end
+
+ def assert_equal_with_class(expected, result, *rest)
+ assert_equal(expected.encoding, result.encoding, *rest)
+ assert_equal(expected, result, result.encoding.name)
+ assert_instance_of(Bug::String, result, *rest)
+ end
+
+ def test_longer
+ assert_equal_with_class("", @foobar.ellipsize(0))
+ assert_equal_with_class(".", @foobar.ellipsize(1))
+ assert_equal_with_class("..", @foobar.ellipsize(2))
+ assert_equal_with_class("...", @foobar.ellipsize(3))
+ assert_equal_with_class("f...", @foobar.ellipsize(4))
+ assert_equal_with_class("fo...", @foobar.ellipsize(5))
+ end
+
+ def test_shorter
+ assert_same(@foobar, @foobar.ellipsize(6))
+ assert_same(@foobar, @foobar.ellipsize(7))
+ end
+
+ def test_negative_length
+ assert_raise(IndexError) {@foobar.ellipsize(-1)}
+ end
+
+ def test_nonascii
+ a = "\u3042"
+ encs = Encoding.list.each do |enc|
+ next if enc.dummy?
+ begin
+ s = a.encode(enc)
+ e = "...".encode(enc)
+ rescue
+ else
+ assert_equal_with_class(s*12+e, Bug::String.new(s*20).ellipsize(15))
+ end
+ end
+ end
+end