add core extensions for Array and Hash

lib/core_ext/array.rb

@@ -0,0 +1,11 @@
+class Array
+  def self.wrap(object)
+    if object.nil?
+      []
+    elsif object.respond_to?(:to_ary)
+      object.to_ary || [object]
+    else
+      [object]
+    end
+  end
+end

lib/core_ext/hash.rb

@@ -0,0 +1,8 @@
+class Hash
+  def stringify_keys!
+    keys.each do |key|
+      self[key.to_s] = delete(key)
+    end
+    self
+  end
+end

lib/pinboard_api.rb

@@ -1,6 +1,9 @@
 require "faraday"
 require "faraday_middleware"
 
+require "core_ext/array"
+require "core_ext/hash"
+
 require "pinboard_api/post"
 require "pinboard_api/tag"
 require "pinboard_api/user"

spec/core_ext/array_spec.rb

@@ -0,0 +1,11 @@
+require "spec_helper"
+
+describe Array do
+
+  describe "self.wrap" do
+    it { Array.wrap(nil).must_equal [] }
+    it { Array.wrap("string").must_equal ["string"] }
+    it { Array.wrap(["array"]).must_equal ["array"] }
+  end
+
+end

spec/core_ext/hash_spec.rb

@@ -0,0 +1,18 @@
+require "spec_helper"
+
+describe Hash do
+
+  describe "stringify_keys!" do
+    let(:string_hash) do
+      { "foo" => "bar", "baz" => "qux" }
+    end
+
+    let(:symbol_hash) do
+      { foo: "bar", baz: "qux" }
+    end
+
+    it { symbol_hash.stringify_keys!.must_equal string_hash }
+    it { string_hash.stringify_keys!.must_equal string_hash }
+  end
+
+end