Move isInputType & isOutputType test to rest of predicates test

src/type/__tests__/definition-test.js

@@ -27,7 +27,7 @@ import { describe, it } from 'mocha';
 import { expect } from 'chai';
 
 import inspect from '../../jsutils/inspect';
-import { isObjectType, isInputType, isOutputType } from '../definition';
+import { isObjectType } from '../definition';
 
 const BlogImage = new GraphQLObjectType({
   name: 'Image',
@@ -384,38 +384,6 @@ describe('Type System: Example', () => {
     );
   });
 
-  it('identifies input types', () => {
-    const expected = [
-      [GraphQLInt, true],
-      [ObjectType, false],
-      [InterfaceType, false],
-      [UnionType, false],
-      [EnumType, true],
-      [InputObjectType, true],
-    ];
-    for (const [type, answer] of expected) {
-      expect(isInputType(type)).to.equal(answer);
-      expect(isInputType(GraphQLList(type))).to.equal(answer);
-      expect(isInputType(GraphQLNonNull(type))).to.equal(answer);
-    }
-  });
-
-  it('identifies output types', () => {
-    const expected = [
-      [GraphQLInt, true],
-      [ObjectType, true],
-      [InterfaceType, true],
-      [UnionType, true],
-      [EnumType, true],
-      [InputObjectType, false],
-    ];
-    for (const [type, answer] of expected) {
-      expect(isOutputType(type)).to.equal(answer);
-      expect(isOutputType(GraphQLList(type))).to.equal(answer);
-      expect(isOutputType(GraphQLNonNull(type))).to.equal(answer);
-    }
-  });
-
   it('prohibits nesting NonNull inside NonNull', () => {
     // $DisableFlowOnNegativeTest
     expect(() => GraphQLNonNull(GraphQLNonNull(GraphQLInt))).to.throw(

src/type/__tests__/predicate-test.js

@@ -255,60 +255,89 @@ describe('Type predicates', () => {
   });
 
   describe('isInputType', () => {
+    function expectInputType(type) {
+      expect(isInputType(type)).to.equal(true);
+      expect(() => assertInputType(type)).not.to.throw();
+    }
+
     it('returns true for an input type', () => {
-      expect(isInputType(InputObjectType)).to.equal(true);
-      expect(() => assertInputType(InputObjectType)).not.to.throw();
+      expectInputType(GraphQLString);
+      expectInputType(EnumType);
+      expectInputType(InputObjectType);
     });
 
     it('returns true for a wrapped input type', () => {
-      expect(isInputType(GraphQLList(InputObjectType))).to.equal(true);
-      expect(() =>
-        assertInputType(GraphQLList(InputObjectType)),
-      ).not.to.throw();
-      expect(isInputType(GraphQLNonNull(InputObjectType))).to.equal(true);
-      expect(() =>
-        assertInputType(GraphQLNonNull(InputObjectType)),
-      ).not.to.throw();
+      expectInputType(GraphQLList(GraphQLString));
+      expectInputType(GraphQLList(EnumType));
+      expectInputType(GraphQLList(InputObjectType));
+
+      expectInputType(GraphQLNonNull(GraphQLString));
+      expectInputType(GraphQLNonNull(EnumType));
+      expectInputType(GraphQLNonNull(InputObjectType));
     });
 
+    function expectNonInputType(type) {
+      expect(isInputType(type)).to.equal(false);
+      expect(() => assertInputType(type)).to.throw();
+    }
+
     it('returns false for an output type', () => {
-      expect(isInputType(ObjectType)).to.equal(false);
-      expect(() => assertInputType(ObjectType)).to.throw();
+      expectNonInputType(ObjectType);
+      expectNonInputType(InterfaceType);
+      expectNonInputType(UnionType);
     });
 
     it('returns false for a wrapped output type', () => {
-      expect(isInputType(GraphQLList(ObjectType))).to.equal(false);
-      expect(() => assertInputType(GraphQLList(ObjectType))).to.throw();
-      expect(isInputType(GraphQLNonNull(ObjectType))).to.equal(false);
-      expect(() => assertInputType(GraphQLNonNull(ObjectType))).to.throw();
+      expectNonInputType(GraphQLList(ObjectType));
+      expectNonInputType(GraphQLList(InterfaceType));
+      expectNonInputType(GraphQLList(UnionType));
+
+      expectNonInputType(GraphQLNonNull(ObjectType));
+      expectNonInputType(GraphQLNonNull(InterfaceType));
+      expectNonInputType(GraphQLNonNull(UnionType));
     });
   });
 
   describe('isOutputType', () => {
+    function expectOutputType(type) {
+      expect(isOutputType(type)).to.equal(true);
+      expect(() => assertOutputType(type)).not.to.throw();
+    }
+
     it('returns true for an output type', () => {
-      expect(isOutputType(ObjectType)).to.equal(true);
-      expect(() => assertOutputType(ObjectType)).not.to.throw();
+      expectOutputType(GraphQLString);
+      expectOutputType(ObjectType);
+      expectOutputType(InterfaceType);
+      expectOutputType(UnionType);
+      expectOutputType(EnumType);
     });
 
     it('returns true for a wrapped output type', () => {
-      expect(isOutputType(GraphQLList(ObjectType))).to.equal(true);
-      expect(() => assertOutputType(GraphQLList(ObjectType))).not.to.throw();
-      expect(isOutputType(GraphQLNonNull(ObjectType))).to.equal(true);
-      expect(() => assertOutputType(GraphQLNonNull(ObjectType))).not.to.throw();
+      expectOutputType(GraphQLList(GraphQLString));
+      expectOutputType(GraphQLList(ObjectType));
+      expectOutputType(GraphQLList(InterfaceType));
+      expectOutputType(GraphQLList(UnionType));
+      expectOutputType(GraphQLList(EnumType));
+
+      expectOutputType(GraphQLNonNull(GraphQLString));
+      expectOutputType(GraphQLNonNull(ObjectType));
+      expectOutputType(GraphQLNonNull(InterfaceType));
+      expectOutputType(GraphQLNonNull(UnionType));
+      expectOutputType(GraphQLNonNull(EnumType));
     });
 
+    function expectNonOutputType(type) {
+      expect(isOutputType(type)).to.equal(false);
+      expect(() => assertOutputType(type)).to.throw();
+    }
+
     it('returns false for an input type', () => {
-      expect(isOutputType(InputObjectType)).to.equal(false);
-      expect(() => assertOutputType(InputObjectType)).to.throw();
+      expectNonOutputType(InputObjectType);
     });
 
     it('returns false for a wrapped input type', () => {
-      expect(isOutputType(GraphQLList(InputObjectType))).to.equal(false);
-      expect(() => assertOutputType(GraphQLList(InputObjectType))).to.throw();
-      expect(isOutputType(GraphQLNonNull(InputObjectType))).to.equal(false);
-      expect(() =>
-        assertOutputType(GraphQLNonNull(InputObjectType)),
-      ).to.throw();
+      expectNonOutputType(GraphQLList(InputObjectType));
+      expectNonOutputType(GraphQLNonNull(InputObjectType));
     });
   });