1 files changed, 35 insertions, 0 deletions
diff --git a/spec/rubyspec/core/env/fetch_spec.rb b/spec/rubyspec/core/env/fetch_spec.rb
new file mode 100644
index 0000000000..708ee91c39
--- /dev/null
+++ b/spec/rubyspec/core/env/fetch_spec.rb
@@ -0,0 +1,35 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "ENV.fetch" do
+  it "returns a value" do
+    ENV["foo"] = "bar"
+    ENV.fetch("foo").should == "bar"
+    ENV.delete "foo"
+  end
+
+  it "raises a TypeError if the key is not a String" do
+    lambda { ENV.fetch :should_never_be_set }.should raise_error(TypeError)
+  end
+
+  it "raises a KeyError if the key is not found" do
+    lambda { ENV.fetch "should_never_be_set" }.should raise_error(KeyError)
+  end
+
+  it "provides the given default parameter" do
+    ENV.fetch("should_never_be_set", "default").should == "default"
+  end
+
+  it "provides a default value from a block" do
+    ENV.fetch("should_never_be_set") { |k| "wanted #{k}" }.should == "wanted should_never_be_set"
+  end
+
+  it "warns on block and default parameter given" do
+    lambda do
+       ENV.fetch("should_never_be_set", "default") { 1 }.should == 1
+    end.should complain(/block supersedes default value argument/)
+  end
+
+  it "uses the locale encoding" do
+    ENV.fetch(ENV.keys.first).encoding.should == Encoding.find('locale')
+  end
+end