1 files changed, 75 insertions, 0 deletions
diff --git a/spec/ruby/core/kernel/public_methods_spec.rb b/spec/ruby/core/kernel/public_methods_spec.rb
new file mode 100644
index 0000000000..e334ac9a55
--- /dev/null
+++ b/spec/ruby/core/kernel/public_methods_spec.rb
@@ -0,0 +1,75 @@
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
+require_relative '../../fixtures/reflection'
+
+# TODO: rewrite
+describe "Kernel#public_methods" do
+  it "returns a list of the names of publicly accessible methods in the object" do
+    KernelSpecs::Methods.public_methods(false).to_set.should >= Set[:hachi, :ichi, :juu, :juu_ni, :roku, :san, :shi]
+    KernelSpecs::Methods.new.public_methods(false).to_set.should >= Set[:juu_san, :ni]
+  end
+
+  it "returns a list of names without protected accessible methods in the object" do
+    KernelSpecs::Methods.public_methods(false).sort.should_not.include?(:juu_ichi)
+    KernelSpecs::Methods.new.public_methods(false).sort.should_not.include?(:ku)
+  end
+
+  it "returns a list of the names of publicly accessible methods in the object and its ancestors and mixed-in modules" do
+    (KernelSpecs::Methods.public_methods(false) & KernelSpecs::Methods.public_methods).to_set.should >= Set[
+      :hachi, :ichi, :juu, :juu_ni, :roku, :san, :shi]
+    m = KernelSpecs::Methods.new.public_methods
+    m.to_set.should >= Set[:ni, :juu_san]
+  end
+
+  it "returns methods mixed in to the metaclass" do
+    m = KernelSpecs::Methods.new
+    m.extend(KernelSpecs::Methods::MetaclassMethods)
+    m.public_methods.should.include?(:peekaboo)
+  end
+
+  it "returns public methods for immediates" do
+    10.public_methods.should.include?(:divmod)
+  end
+end
+
+describe :kernel_public_methods_supers, shared: true do
+  it "returns a unique list for an object extended by a module" do
+    m = ReflectSpecs.oed.public_methods(*@object)
+    m.select { |x| x == :pub }.sort.should == [:pub]
+  end
+
+  it "returns a unique list for a class including a module" do
+    m = ReflectSpecs::D.new.public_methods(*@object)
+    m.select { |x| x == :pub }.sort.should == [:pub]
+  end
+
+  it "returns a unique list for a subclass of a class that includes a module" do
+    m = ReflectSpecs::E.new.public_methods(*@object)
+    m.select { |x| x == :pub }.sort.should == [:pub]
+  end
+end
+
+describe :kernel_public_methods_with_falsy, shared: true do
+  it "returns a list of public methods in without its ancestors" do
+    ReflectSpecs::F.public_methods(@object).select{|m|/_pub\z/ =~ m}.sort.should == [:ds_pub, :fs_pub]
+    ReflectSpecs::F.new.public_methods(@object).should == [:f_pub]
+  end
+end
+
+describe "Kernel#public_methods" do
+  describe "when not passed an argument" do
+    it_behaves_like :kernel_public_methods_supers, nil, []
+  end
+
+  describe "when passed true" do
+    it_behaves_like :kernel_public_methods_supers, nil, true
+  end
+
+  describe "when passed false" do
+    it_behaves_like :kernel_public_methods_with_falsy, nil, false
+  end
+
+  describe "when passed nil" do
+    it_behaves_like :kernel_public_methods_with_falsy, nil, nil
+  end
+end