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authornaruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2016-01-27 11:37:02 +0000
committernaruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2016-01-27 11:37:02 +0000
commitd14f0cfd168e3ce760effd5484b1d4e76f41e65e (patch)
treef6fc73c1defb4dd8bd76d64fecc745ee345c66f4 /test/-ext-/string
parenta7c987968de91bcc4cada65ce90b23c2f89957e3 (diff)
Add tests about String's internal capacity
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53671 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test/-ext-/string')
-rw-r--r--test/-ext-/string/test_capacity.rb18
1 files changed, 18 insertions, 0 deletions
diff --git a/test/-ext-/string/test_capacity.rb b/test/-ext-/string/test_capacity.rb
new file mode 100644
index 0000000..b4e4fb7
--- /dev/null
+++ b/test/-ext-/string/test_capacity.rb
@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+require 'test/unit'
+require '-test-/string'
+
+class Test_StringCapacity < Test::Unit::TestCase
+ def test_capacity_embeded
+ size = RbConfig::SIZEOF['void*'] * 3 - 1
+ assert_equal size, Bug::String.capacity('foo')
+ end
+
+ def test_capacity_shared
+ assert_equal 0, Bug::String.capacity(:abcdefghijklmnopqrstuvwxyz.to_s)
+ end
+
+ def test_capacity_normal
+ assert_equal 128, Bug::String.capacity('1'*128)
+ end
+end