change tests accoring to changed logic

Author: morr

test/float_type_test.rb

@@ -21,13 +21,13 @@
 
     describe 'when value is Nil' do
       it 'returns nil' do
-        assert_nil type.coerce(nil)
+        type.coerce(nil).must_equal 0
       end
     end
 
     describe 'when allow_nil is true' do
       it 'returns float' do
-        type.coerce(nil, allow_nil: true).must_equal 0.0
+        assert_nil type.coerce(nil, allow_nil: true)
       end
     end
 

test/integer_type_test.rb

@@ -20,13 +20,13 @@
 
     describe 'when value is Nil' do
       it 'returns nil' do
-        assert_nil type.coerce(nil)
+        type.coerce(nil).must_equal 0
       end
     end
 
     describe 'when allow_nil is true' do
       it 'returns integer' do
-        type.coerce(nil, allow_nil: true).must_equal 0
+        assert_nil type.coerce(nil, allow_nil: true)
       end
     end
 

test/shallow_attributes_test.rb

@@ -140,7 +140,7 @@ def default_color
         user.name  = nil
         user.age   = nil
         user.admin = nil
-        user.attributes.must_equal(name: '', age: nil, last_name: "Affleck", full_name: "Anton Affleck", color: "Pink", friends_count: 0, sizes: [], admin: false)
+        user.attributes.must_equal(name: '', age: 0, last_name: "Affleck", full_name: "Anton Affleck", color: "Pink", friends_count: 0, sizes: [], admin: false)
       end
     end
   end

test/string_type_test.rb

@@ -32,7 +32,7 @@
 
     describe 'when allow_nil is true' do
       it 'returns integer' do
-        type.coerce(nil, allow_nil: true).must_equal ''
+        assert_nil type.coerce(nil, allow_nil: true)
       end
     end