get-directives.spec.ts

import { GraphQLSchema } from 'graphql';
import { makeExecutableSchema } from '@graphql-toolkit/schema';
import { getDirectives } from '../src';

describe('getDirectives', () => {
  it('should return the correct directives map when no directives specified', () => {
    const typeDefs = `
      type Query {
        test: String
      }
    `;
    const schema = makeExecutableSchema({ typeDefs, resolvers: {}, allowUndefinedInResolve: true }) as GraphQLSchema;
    const directivesMap = getDirectives(schema, schema.getQueryType());

    expect(directivesMap).toEqual({});
  });

  it('should return the correct directives map when built-in directive specified over FIELD_DEFINITION', () => {
    const typeDefs = `
      type Query {
        test: String @deprecated
      }
    `;

    const schema = makeExecutableSchema({ typeDefs, resolvers: {}, allowUndefinedInResolve: true }) as GraphQLSchema;
    const directivesMap = getDirectives(schema, schema.getQueryType().getFields()['test']);
    expect(directivesMap).toEqual({
      deprecated: {
        reason: 'No longer supported',
      },
    });
  });

  it('should return the correct directives map when using custom directive without arguments', () => {
    const typeDefs = `
      type Query {
        test: String @mydir
      }
      
      directive @mydir on FIELD_DEFINITION
    `;

    const schema = makeExecutableSchema({ typeDefs, resolvers: {}, allowUndefinedInResolve: true }) as GraphQLSchema;
    const directivesMap = getDirectives(schema, schema.getQueryType().getFields()['test']);
    expect(directivesMap).toEqual({
      mydir: {},
    });
  });

  it('should return the correct directives map when using custom directive with optional argument', () => {
    const typeDefs = `
      type Query {
        test: String @mydir(f1: "test")
      }
      
      directive @mydir(f1: String) on FIELD_DEFINITION
    `;

    const schema = makeExecutableSchema({ typeDefs, resolvers: {}, allowUndefinedInResolve: true }) as GraphQLSchema;
    const directivesMap = getDirectives(schema, schema.getQueryType().getFields()['test']);
    expect(directivesMap).toEqual({
      mydir: {
        f1: 'test',
      },
    });
  });

  it('should return the correct directives map when using custom directive with optional argument an no value', () => {
    const typeDefs = `
      type Query {
        test: String @mydir
      }
      
      directive @mydir(f1: String) on FIELD_DEFINITION
    `;

    const schema = makeExecutableSchema({ typeDefs, resolvers: {}, allowUndefinedInResolve: true }) as GraphQLSchema;
    const directivesMap = getDirectives(schema, schema.getQueryType().getFields()['test']);
    expect(directivesMap).toEqual({
      mydir: {},
    });
  });
});