KeyError#initialize accepts receiver and key.

[Feature #14313][ruby-core:84626]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62049 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/ruby/test_key_error.rb

@@ -0,0 +1,38 @@
+require 'test/unit'
+
+class TestKeyError < Test::Unit::TestCase
+  def test_default
+    error = KeyError.new
+    assert_equal("KeyError", error.message)
+  end
+
+  def test_message
+    error = KeyError.new("Message")
+    assert_equal("Message", error.message)
+  end
+
+  def test_receiver
+    receiver = Object.new
+    error = KeyError.new(receiver: receiver)
+    assert_equal(receiver, error.receiver)
+  end
+
+  def test_key
+    error = KeyError.new(key: :key)
+    assert_equal(:key, error.key)
+  end
+
+  def test_receiver_and_key
+    receiver = Object.new
+    error = KeyError.new(receiver: receiver, key: :key)
+    assert_equal([receiver, :key],
+                 [error.receiver, error.key])
+  end
+
+  def test_all
+    receiver = Object.new
+    error = KeyError.new("Message", receiver: receiver, key: :key)
+    assert_equal(["Message", receiver, :key],
+                 [error.message, error.receiver, error.key])
+  end
+end