coercion_test.rb in disposable-0.3.0

- old
+ new
@@ -1,86 +1,118 @@
 require "test_helper"
 
 require "disposable/twin/coercion"
 
 class CoercionTest < MiniTest::Spec
-  Band = Struct.new(:label)
 
-  class Irreversible < Virtus::Attribute
-    def coerce(value)
-      value*2
-    end
-  end
-
-  class Twin < Disposable::Twin
+  class TwinWithSkipSetter < Disposable::Twin
     feature Coercion
     feature Setup::SkipSetter
 
     property :id
-    property :released_at, :type => DateTime
+    property :released_at, type: Types::Form::DateTime
 
     property :hit do
-      property :length, :type => Integer
-      property :good,   :type => Virtus::Attribute::Boolean
+      property :length, type: Types::Coercible::Int
+      property :good,   type: Types::Bool
     end
 
     property :band do
       property :label do
-        property :value, :type => Irreversible
+        property :value, type: Types::Coercible::Float
       end
     end
   end
 
-  subject do
-    Twin.new(album)
-  end
+  describe "with Setup::SkipSetter" do
 
-  let (:album) {
-    OpenStruct.new(
-      id: 1,
-      :released_at => "31/03/1981",
-      :hit         => OpenStruct.new(:length => "312"),
-      :band        => Band.new(OpenStruct.new(:value => "9999.99"))
-    )
-  }
+    subject do
+      TwinWithSkipSetter.new(album)
+    end
 
-  # it { subject.released_at.must_be_kind_of DateTime }
-  it { subject.released_at.must_equal "31/03/1981" } # NO coercion in setup.
-  it { subject.hit.length.must_equal "312" }
-  it { subject.band.label.value.must_equal "9999.99" }
+    let (:album) {
+      OpenStruct.new(
+        id: 1,
+        :released_at => "31/03/1981",
+        :hit         => OpenStruct.new(:length => "312"),
+        :band        => OpenStruct.new(:label => OpenStruct.new(:value => "9999.99"))
+      )
+    }
 
+    it "NOT coerce values in setup" do
+      subject.released_at.must_equal "31/03/1981"
+      subject.hit.length.must_equal "312"
+      subject.band.label.value.must_equal "9999.99"
+    end
 
-  it do
-    subject.id = Object
-    subject.released_at = "30/03/1981"
-    subject.hit.length = "312"
-    subject.band.label.value = "9999.99"
 
-    subject.id = Object
-    subject.released_at.must_be_kind_of DateTime
-    subject.released_at.must_equal DateTime.parse("30/03/1981")
-    subject.hit.length.must_equal 312
-    subject.hit.good.must_equal nil
-    subject.band.label.value.must_equal "9999.999999.99" # coercion happened once.
+    it "coerce values when using a setter" do
+      subject.id = Object
+      subject.released_at = "30/03/1981"
+      subject.hit.length = "312"
+      subject.band.label.value = "9999.99"
+
+      subject.released_at.must_be_kind_of DateTime
+      subject.released_at.must_equal DateTime.parse("30/03/1981")
+      subject.hit.length.must_equal 312
+      subject.hit.good.must_equal nil
+      subject.band.label.value.must_equal 9999.99
+    end
   end
-end
 
+  class TwinWithoutSkipSetter < Disposable::Twin
+    feature Coercion
+    property :id, type: Types::Coercible::Int
+  end
 
-class CoercionWithoutSkipSetterTest < MiniTest::Spec
-  class Irreversible < Virtus::Attribute
-    def coerce(value)
-      value*2
+  describe "without Setup::SkipSetter" do
+
+    subject do
+      TwinWithoutSkipSetter.new(OpenStruct.new(id: "1"))
     end
+
+    it "coerce values in setup and when using a setter" do
+      subject.id.must_equal 1
+      subject.id = "2"
+      subject.id.must_equal 2
+    end
   end
 
-  class Twin < Disposable::Twin
+  class TwinWithNilify < Disposable::Twin
     feature Coercion
-    property :id, type: Irreversible
+
+    property :date_of_birth,
+             type: Types::Form::Date, nilify: true
+    property :date_of_death_by_unicorns,
+             type: Types::Form::Nil | Types::Form::Date
+    property :id, nilify: true
   end
 
-  it do
-    twin = Twin.new(OpenStruct.new(id: "1"))
-    twin.id.must_equal "11" # coercion happens in Setup.
-    twin.id = "2"
-    twin.id.must_equal "22"
+  describe "with Nilify" do
+
+    subject do
+      TwinWithNilify.new(OpenStruct.new(date_of_birth: '1990-01-12',
+                                        date_of_death_by_unicorns: '2037-02-18',
+                                        id: 1))
+    end
+
+    it "coerce values correctly" do
+      subject.date_of_birth.must_equal Date.parse('1990-01-12')
+      subject.date_of_death_by_unicorns.must_equal Date.parse('2037-02-18')
+    end
+
+    it "coerce empty values to nil when using option nilify: true" do
+      subject.date_of_birth = ""
+      subject.date_of_birth.must_equal nil
+    end
+
+    it "coerce empty values to nil when using dry-types | operator" do
+      subject.date_of_death_by_unicorns = ""
+      subject.date_of_death_by_unicorns.must_equal nil
+    end
+
+    it "converts blank string to nil, without :type option" do
+      subject.id = ""
+      subject.id.must_equal nil
+    end
   end
-end
\ No newline at end of file
+end