From d14f0cfd168e3ce760effd5484b1d4e76f41e65e Mon Sep 17 00:00:00 2001
From: naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 27 Jan 2016 11:37:02 +0000
Subject: Add tests about String's internal capacity

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53671 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/-ext-/string/test_capacity.rb | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 test/-ext-/string/test_capacity.rb

(limited to 'test')

diff --git a/test/-ext-/string/test_capacity.rb b/test/-ext-/string/test_capacity.rb
new file mode 100644
index 0000000000..b4e4fb7c02
--- /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
-- 
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