rubber_duck_spec.rb in standard-procedure-plumbing-0.3.3

- old
+ new
@@ -3,74 +3,72 @@
 RSpec.describe Plumbing::RubberDuck do
   # standard:disable Lint/ConstantDefinitionInBlock
   class Duck
     def quack = "Quack"
 
-    def swim place
-      "Swim in #{place}"
-    end
+    def swim(place) = "Swim in #{place}"
 
-    def fly &block
-      "Fly #{block.call}"
-    end
+    def fly(&block) = "Fly #{block.call}"
   end
   # standard:enable Lint/ConstantDefinitionInBlock
 
-  it "verifies that an object matches the RubberDuck type" do
-    @duck_type = described_class.define :quack, :swim, :fly
-    @duck = Duck.new
+  context "defining rubber ducks" do
+    it "verifies that an object matches the RubberDuck type" do
+      @duck_type = described_class.define :quack, :swim, :fly
+      @duck = Duck.new
 
-    expect(@duck_type.verify(@duck)).to eq @duck
-  end
+      expect(@duck_type.verify(@duck)).to eq @duck
+    end
 
-  it "casts the object to a duck type" do
-    @duck_type = described_class.define :quack, :swim, :fly
-    @duck = Duck.new
+    it "casts the object to a duck type" do
+      @duck_type = described_class.define :quack, :swim, :fly
+      @duck = Duck.new
 
-    @proxy = @duck.as @duck_type
+      @proxy = @duck.as @duck_type
 
-    expect(@proxy).to be_kind_of Plumbing::RubberDuck::Proxy
-    expect(@proxy).to respond_to :quack
-    expect(@proxy.quack).to eq "Quack"
-    expect(@proxy).to respond_to :swim
-    expect(@proxy.swim("the river")).to eq "Swim in the river"
-    expect(@proxy).to respond_to :fly
-    expect(@proxy.fly { "ducky fly" }).to eq "Fly ducky fly"
-  end
+      expect(@proxy).to be_kind_of Plumbing::RubberDuck::Proxy
+      expect(@proxy).to respond_to :quack
+      expect(@proxy.quack).to eq "Quack"
+      expect(@proxy).to respond_to :swim
+      expect(@proxy.swim("the river")).to eq "Swim in the river"
+      expect(@proxy).to respond_to :fly
+      expect(@proxy.fly { "ducky fly" }).to eq "Fly ducky fly"
+    end
 
-  it "does not forward methods that are not part of the duck type" do
-    @duck_type = described_class.define :swim, :fly
-    @duck = Duck.new
+    it "does not forward methods that are not part of the duck type" do
+      @duck_type = described_class.define :swim, :fly
+      @duck = Duck.new
 
-    @proxy = @duck.as @duck_type
+      @proxy = @duck.as @duck_type
 
-    expect(@proxy).to_not respond_to :quack
-  end
+      expect(@proxy).to_not respond_to :quack
+    end
 
-  it "does not wrap rubber ducks in a proxy" do
-    @duck_type = described_class.define :swim, :fly
-    @duck = Duck.new
+    it "does not wrap rubber ducks in a proxy" do
+      @duck_type = described_class.define :swim, :fly
+      @duck = Duck.new
 
-    @proxy = @duck.as @duck_type
+      @proxy = @duck.as @duck_type
 
-    expect(@proxy.as(@duck_type)).to eq @proxy
-  end
+      expect(@proxy.as(@duck_type)).to eq @proxy
+    end
 
-  it "allows rubber ducks to be expanded and cast to other types" do
-    @quackers = described_class.define :quack
-    @swimming_bird = described_class.define :swim, :fly
-    @duck = Duck.new
+    it "allows rubber ducks to be expanded and cast to other types" do
+      @quackers = described_class.define :quack
+      @swimming_bird = described_class.define :swim, :fly
+      @duck = Duck.new
 
-    @swimmer = @duck.as @swimming_bird
-    @quacker = @swimmer.as @quackers
+      @swimmer = @duck.as @swimming_bird
+      @quacker = @swimmer.as @quackers
 
-    expect(@swimmer).to respond_to :swim
-    expect(@quacker).to respond_to :quack
-  end
+      expect(@swimmer).to respond_to :swim
+      expect(@quacker).to respond_to :quack
+    end
 
-  it "raises a TypeError if the class responds to the given methods" do
-    cow_type = described_class.define :moo, :chew
-    duck = Duck.new
+    it "raises a TypeError if the object does not respond to the given methods" do
+      @cow_type = described_class.define :moo, :chew
+      @duck = Duck.new
 
-    expect { cow_type.verify(duck) }.to raise_error(TypeError)
+      expect { @cow_type.verify(@duck) }.to raise_error(TypeError)
+    end
   end
 end