1 files changed, 76 insertions, 0 deletions
diff --git a/spec/ruby/core/kernel/frozen_spec.rb b/spec/ruby/core/kernel/frozen_spec.rb
new file mode 100644
index 0000000000..a4cec4263d
--- /dev/null
+++ b/spec/ruby/core/kernel/frozen_spec.rb
@@ -0,0 +1,76 @@
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
+
+describe "Kernel#frozen?" do
+  it "returns true if self is frozen" do
+    o = mock('o')
+    p = mock('p')
+    p.freeze
+    o.should_not.frozen?
+    p.should.frozen?
+  end
+
+  describe "on true, false and nil" do
+    it "returns true" do
+      true.frozen?.should be_true
+      false.frozen?.should be_true
+      nil.frozen?.should be_true
+    end
+  end
+
+  describe "on integers" do
+    before :each do
+      @fixnum = 1
+      @bignum = bignum_value
+    end
+
+    it "returns true" do
+      @fixnum.frozen?.should be_true
+      @bignum.frozen?.should be_true
+    end
+  end
+
+  describe "on a Float" do
+    before :each do
+      @float = 0.1
+    end
+
+    it "returns true" do
+      @float.frozen?.should be_true
+    end
+  end
+
+  describe "on a Symbol" do
+    before :each do
+      @symbol = :symbol
+    end
+
+    it "returns true" do
+      @symbol.frozen?.should be_true
+    end
+  end
+
+  describe "on a Complex" do
+    it "returns true" do
+      c = Complex(1.3, 3.1)
+      c.frozen?.should be_true
+    end
+
+    it "literal returns true" do
+      c = eval "1.3i"
+      c.frozen?.should be_true
+    end
+  end
+
+  describe "on a Rational" do
+    it "returns true" do
+      r = Rational(1, 3)
+      r.frozen?.should be_true
+    end
+
+    it "literal returns true" do
+      r = eval "1/3r"
+      r.frozen?.should be_true
+    end
+  end
+end