1 files changed, 36 insertions, 0 deletions
diff --git a/spec/rubyspec/core/hash/new_spec.rb b/spec/rubyspec/core/hash/new_spec.rb
new file mode 100644
index 0000000000..c31cc2abf4
--- /dev/null
+++ b/spec/rubyspec/core/hash/new_spec.rb
@@ -0,0 +1,36 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/classes', __FILE__)
+
+describe "Hash.new" do
+  it "creates an empty Hash if passed no arguments" do
+    Hash.new.should == {}
+    Hash.new.size.should == 0
+  end
+
+  it "creates a new Hash with default object if passed a default argument" do
+    Hash.new(5).default.should == 5
+    Hash.new({}).default.should == {}
+  end
+
+  it "does not create a copy of the default argument" do
+    str = "foo"
+    Hash.new(str).default.should equal(str)
+  end
+
+  it "creates a Hash with a default_proc if passed a block" do
+    Hash.new.default_proc.should == nil
+
+    h = Hash.new { |x| "Answer to #{x}" }
+    h.default_proc.call(5).should == "Answer to 5"
+    h.default_proc.call("x").should == "Answer to x"
+  end
+
+  it "raises an ArgumentError if more than one argument is passed" do
+    lambda { Hash.new(5,6) }.should raise_error(ArgumentError)
+  end
+
+  it "raises an ArgumentError if passed both default argument and default block" do
+    lambda { Hash.new(5) { 0 }   }.should raise_error(ArgumentError)
+    lambda { Hash.new(nil) { 0 } }.should raise_error(ArgumentError)
+  end
+end