1 files changed, 77 insertions, 0 deletions
diff --git a/spec/ruby/core/env/reject_spec.rb b/spec/ruby/core/env/reject_spec.rb
new file mode 100644
index 0000000000..0da84425b6
--- /dev/null
+++ b/spec/ruby/core/env/reject_spec.rb
@@ -0,0 +1,77 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../../enumerable/shared/enumeratorized', __FILE__)
+
+describe "ENV.reject!" do
+  it "rejects entries based on key" do
+    ENV["foo"] = "bar"
+    ENV.reject! { |k, v| k == "foo" }
+    ENV["foo"].should == nil
+  end
+
+  it "rejects entries based on value" do
+    ENV["foo"] = "bar"
+    ENV.reject! { |k, v| v == "bar" }
+    ENV["foo"].should == nil
+  end
+
+  it "returns itself or nil" do
+    ENV.reject! { false }.should == nil
+    ENV["foo"] = "bar"
+    ENV.reject! { |k, v| k == "foo" }.should == ENV
+    ENV["foo"].should == nil
+  end
+
+  it "returns an Enumerator if called without a block" do
+    ENV.reject!.should be_an_instance_of(Enumerator)
+  end
+
+  it "doesn't raise if empty" do
+    orig = ENV.to_hash
+    begin
+      ENV.clear
+      lambda { ENV.reject! }.should_not raise_error(LocalJumpError)
+    ensure
+      ENV.replace orig
+    end
+  end
+
+  it_behaves_like :enumeratorized_with_origin_size, :reject!, ENV
+end
+
+describe "ENV.reject" do
+  it "rejects entries based on key" do
+    ENV["foo"] = "bar"
+    e = ENV.reject { |k, v| k == "foo" }
+    e["foo"].should == nil
+    ENV["foo"].should == "bar"
+    ENV["foo"] = nil
+  end
+
+  it "rejects entries based on value" do
+    ENV["foo"] = "bar"
+    e = ENV.reject { |k, v| v == "bar" }
+    e["foo"].should == nil
+    ENV["foo"].should == "bar"
+    ENV["foo"] = nil
+  end
+
+  it "returns a Hash" do
+    ENV.reject { false }.should be_kind_of(Hash)
+  end
+
+  it "returns an Enumerator if called without a block" do
+    ENV.reject.should be_an_instance_of(Enumerator)
+  end
+
+  it "doesn't raise if empty" do
+    orig = ENV.to_hash
+    begin
+      ENV.clear
+      lambda { ENV.reject }.should_not raise_error(LocalJumpError)
+    ensure
+      ENV.replace orig
+    end
+  end
+
+  it_behaves_like :enumeratorized_with_origin_size, :reject, ENV
+end