spec/object_spec.rb in strong_json-0.0.3 vs spec/object_spec.rb in strong_json-0.0.4

@@ -13,14 +13,22 @@
       type = StrongJSON::Type::Object.new(a: StrongJSON::Type::Base.new(:numeric))
 
       expect(type.coerce(a: 123, b: true)).to eq(a: 123)
     end
 
-    it "rejects prohibited fields" do
-      type = StrongJSON::Type::Object.new(a: StrongJSON::Type::Base.new(:prohibited))
+    describe "prohibited" do
+      it "rejects field with any value" do
+        type = StrongJSON::Type::Object.new(a: StrongJSON::Type::Base.new(:prohibited))
 
-      expect{ type.coerce(a: 123, b: true) }.to raise_error(StrongJSON::Type::Error)
+        expect{ type.coerce(a: 123, b: true) }.to raise_error(StrongJSON::Type::Error)
+      end
+
+      it "accepts if it does not contains the field" do
+        type = StrongJSON::Type::Object.new(a: StrongJSON::Type::Base.new(:prohibited))
+
+        expect(type.coerce(b: true)).to eq({})
+      end
     end
 
     it "rejects objects with missing fields" do
       type = StrongJSON::Type::Object.new(a: StrongJSON::Type::Base.new(:numeric))
 
@@ -45,8 +53,18 @@
 
     it "overrides field" do
       ty2 = type.merge(a: StrongJSON::Type::Base.new(:prohibited))
 
       expect{ ty2.coerce(a: 123) }.to raise_error(StrongJSON::Type::Error)
+    end
+  end
+
+  describe "#except" do
+    let (:type) { StrongJSON::Type::Object.new(a: StrongJSON::Type::Base.new(:numeric), b: StrongJSON::Type::Base.new(:string)) }
+
+    it "return object which ignores given fields but preserve others" do
+      ty2 = type.except(:a)
+
+      expect(ty2.coerce(a: 123, b: "test")).to eq({ b: "test" })
     end
   end
 end