ESLint: Forbid unnecessary backticks

.eslintrc.yml

@@ -253,7 +253,7 @@ rules:
   operator-assignment: [error, always]
   padding-line-between-statements: off
   prefer-object-spread: error
-  quotes: [error, single, { avoidEscape: true, allowTemplateLiterals: true }]
+  quotes: [error, single, { avoidEscape: true, allowTemplateLiterals: false }]
   sort-keys: off
   sort-vars: off
   spaced-comment: [error, always]

src/type/__tests__/serialization-test.js

@@ -104,7 +104,7 @@ describe('Type System: Scalar coercion', () => {
     );
   });
 
-  it(`serializes output as String`, () => {
+  it('serializes output as String', () => {
     expect(GraphQLString.serialize('string')).to.equal('string');
     expect(GraphQLString.serialize(1)).to.equal('1');
     expect(GraphQLString.serialize(-1.1)).to.equal('-1.1');

src/type/__tests__/validation-test.js

@@ -909,10 +909,11 @@ describe('Type System: Object fields must have output types', () => {
     const schema = schemaWithObjectFieldOfType(Number);
     expect(validateSchema(schema)).to.deep.equal([
       {
-        message: `The type of BadObject.badField must be Output Type but got: [function Number].`,
+        message:
+          'The type of BadObject.badField must be Output Type but got: [function Number].',
       },
       {
-        message: `Expected GraphQL named type but got: [function Number].`,
+        message: 'Expected GraphQL named type but got: [function Number].',
       },
     ]);
   });
@@ -1224,13 +1225,15 @@ describe('Type System: Interface fields must have output types', () => {
     const schema = schemaWithInterfaceFieldOfType(Number);
     expect(validateSchema(schema)).to.deep.equal([
       {
-        message: `The type of BadInterface.badField must be Output Type but got: [function Number].`,
+        message:
+          'The type of BadInterface.badField must be Output Type but got: [function Number].',
       },
       {
-        message: `Expected GraphQL named type but got: [function Number].`,
+        message: 'Expected GraphQL named type but got: [function Number].',
       },
       {
-        message: `The type of BadImplementing.badField must be Output Type but got: [function Number].`,
+        message:
+          'The type of BadImplementing.badField must be Output Type but got: [function Number].',
       },
     ]);
   });
@@ -1342,10 +1345,11 @@ describe('Type System: Field arguments must have input types', () => {
     const schema = schemaWithArgOfType(Number);
     expect(validateSchema(schema)).to.deep.equal([
       {
-        message: `The type of BadObject.badField(badArg:) must be Input Type but got: [function Number].`,
+        message:
+          'The type of BadObject.badField(badArg:) must be Input Type but got: [function Number].',
       },
       {
-        message: `Expected GraphQL named type but got: [function Number].`,
+        message: 'Expected GraphQL named type but got: [function Number].',
       },
     ]);
   });
@@ -1431,10 +1435,11 @@ describe('Type System: Input Object fields must have input types', () => {
     const schema = schemaWithInputFieldOfType(Number);
     expect(validateSchema(schema)).to.deep.equal([
       {
-        message: `The type of BadInputObject.badField must be Input Type but got: [function Number].`,
+        message:
+          'The type of BadInputObject.badField must be Input Type but got: [function Number].',
       },
       {
-        message: `Expected GraphQL named type but got: [function Number].`,
+        message: 'Expected GraphQL named type but got: [function Number].',
       },
     ]);
   });

src/type/validate.js

@@ -114,7 +114,7 @@ function validateRootTypes(context) {
   const schema = context.schema;
   const queryType = schema.getQueryType();
   if (!queryType) {
-    context.reportError(`Query root type must be provided.`, schema.astNode);
+    context.reportError('Query root type must be provided.', schema.astNode);
   } else if (!isObjectType(queryType)) {
     context.reportError(
       `Query root type must be Object type, it cannot be ${inspect(

src/utilities/__tests__/coerceValue-test.js

@@ -33,20 +33,20 @@ function expectErrors(result) {
 }
 
 describe('coerceValue', () => {
-  describe(`for GraphQLString`, () => {
+  describe('for GraphQLString', () => {
     it('returns error for array input as string', () => {
       const result = coerceValue([1, 2, 3], GraphQLString);
       expectErrors(result).to.deep.equal([
-        `Expected type String; String cannot represent a non string value: [1, 2, 3]`,
+        'Expected type String; String cannot represent a non string value: [1, 2, 3]',
       ]);
     });
   });
 
-  describe(`for GraphQLID`, () => {
+  describe('for GraphQLID', () => {
     it('returns error for array input as ID', () => {
       const result = coerceValue([1, 2, 3], GraphQLID);
       expectErrors(result).to.deep.equal([
-        `Expected type ID; ID cannot represent value: [1, 2, 3]`,
+        'Expected type ID; ID cannot represent value: [1, 2, 3]',
       ]);
     });
   });
@@ -60,7 +60,7 @@ describe('coerceValue', () => {
     it('returns error for numeric looking string', () => {
       const result = coerceValue('1', GraphQLInt);
       expectErrors(result).to.deep.equal([
-        `Expected type Int; Int cannot represent non-integer value: "1"`,
+        'Expected type Int; Int cannot represent non-integer value: "1"',
       ]);
     });