From 1df42597d15416357a20bd68700ce1a2d245e8bb Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 7 Mar 2011 08:44:45 +0000
Subject: cancel subversion backfire. sorry

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31046 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/rubygems/test_gem_dependency.rb | 39 ++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

(limited to 'test/rubygems/test_gem_dependency.rb')

diff --git a/test/rubygems/test_gem_dependency.rb b/test/rubygems/test_gem_dependency.rb
index 51b746f555..b4a21b896c 100644
--- a/test/rubygems/test_gem_dependency.rb
+++ b/test/rubygems/test_gem_dependency.rb
@@ -106,6 +106,45 @@ class TestGemDependency < Gem::TestCase
     refute_equal dep("pkg", :development), dep("pkg", :runtime), "type"
   end
 
+  def test_merge
+    a1 = dep 'a', '~> 1.0'
+    a2 = dep 'a', '= 1.0'
+
+    a3 = a1.merge a2
+
+    assert_equal dep('a', '~> 1.0', '= 1.0'), a3
+  end
+
+  def test_merge_default
+    a1 = dep 'a'
+    a2 = dep 'a', '1'
+
+    a3 = a1.merge a2
+
+    assert_equal dep('a', '1'), a3
+  end
+
+  def test_merge_name_mismatch
+    a = dep 'a'
+    b = dep 'b'
+
+    e = assert_raises ArgumentError do
+      a.merge b
+    end
+
+    assert_equal 'a (>= 0) and b (>= 0) have different names',
+                 e.message
+  end
+
+  def test_merge_other_default
+    a1 = dep 'a', '1'
+    a2 = dep 'a'
+
+    a3 = a1.merge a2
+
+    assert_equal dep('a', '1'), a3
+  end
+
   def test_prerelease_eh
     d = dep "pkg", "= 1"
 
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