initial commit

Gemfile

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+# A sample Gemfile
+source "http://rubygems.org"
+
+gem "rspec"

Gemfile.lock

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+GEM
+  remote: http://rubygems.org/
+  specs:
+    diff-lcs (1.1.3)
+    rspec (2.8.0)
+      rspec-core (~> 2.8.0)
+      rspec-expectations (~> 2.8.0)
+      rspec-mocks (~> 2.8.0)
+    rspec-core (2.8.0)
+    rspec-expectations (2.8.0)
+      diff-lcs (~> 1.1.2)
+    rspec-mocks (2.8.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  rspec

README.md

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+Demonstrates use of stubbing methods using RSpec Mocks (and RSpec Expectations).
+
+You can learn about RSpec at https://www.relishapp.com/rspec
+
+To run the tests: "rspec spec/"

lib/simple.rb

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+class MyClass
+
+  attr_accessor :name
+
+  def initialize(name="default")
+    @name = name
+  end
+
+  def self.a_class_method
+    "default class impl"
+  end
+
+  def an_instance_method
+    "default instance impl for #{@name}"
+  end
+
+end

spec/basic_spec.rb

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+require File.dirname(__FILE__) + '/../lib/simple.rb'
+
+describe "basic tests" do
+  it "can create instance" do
+    inst = MyClass.new
+    inst.should_not be_nil
+  end
+  it "defaults name" do
+    inst = MyClass.new
+    inst.name.should == "default"
+  end
+  it "has a class method" do
+    MyClass.a_class_method.should match("default class impl")
+  end
+  it "has an instance method" do
+    inst = MyClass.new
+    inst.an_instance_method.should match("default instance impl for default")
+  end
+  it "can set name" do
+    inst = MyClass.new("hello")
+    inst.name.should == "hello"
+  end
+end
+
+describe "stub methods" do
+  it "can stub class methods" do 
+    MyClass.stub(:a_class_method).and_return("a stubbed method")
+    MyClass.a_class_method.should match("a stubbed method")
+  end
+  it "invoking stub on class does not affect instance methods" do
+    MyClass.stub(:an_instance_method).and_return("a stubbed method")
+    inst = MyClass.new
+    inst.an_instance_method.should match("default instance impl for default")
+  end
+  it "can stub instance methods" do
+    MyClass.any_instance.stub(:an_instance_method).and_return("a stubbed instance method")
+    inst = MyClass.new
+    inst.an_instance_method.should match("a stubbed instance method")
+  end
+end