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) The express-graphql reference implementation [provides a check] (https://github.com/graphql/express-graphql/blob/2e27a7335875f23ae5cccc97a9d6926970fb08c3/src/index.js#L201-L208) to protect against cases where a GET request is made that does not have a `query` parameter where the GraphQL query would be present. Without this guard, graphql-js's `parse` will return `undefined` for the `DocumentNode` since it has no document to read. Subsequently passing this to `isQueryOperation` results in a `TypeError`, because we are providing `undefined` where `getOperationAst` [expects to get a DocumentNode](https://github.com/graphql/graphql-js/blob/5fe39262a308df944a87cc85b225228e7556aaa4/src/utilities/getOperationAST.js#L19). A new test file is added for `runHttpQuery`, as one previously did not seem to exist.
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/* tslint:disable:no-unused-expression */ | ||
import { expect } from 'chai'; | ||
import { stub } from 'sinon'; | ||
import 'mocha'; | ||
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import { | ||
GraphQLSchema, | ||
GraphQLObjectType, | ||
GraphQLString, | ||
GraphQLInt, | ||
} from 'graphql'; | ||
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import { runHttpQuery, HttpQueryError } from './runHttpQuery'; | ||
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const queryType = new GraphQLObjectType({ | ||
name: 'QueryType', | ||
fields: { | ||
testString: { | ||
type: GraphQLString, | ||
resolve() { | ||
return 'it works'; | ||
}, | ||
}, | ||
}, | ||
}); | ||
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const schema = new GraphQLSchema({ | ||
query: queryType, | ||
}); | ||
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describe('runHttpQuery', () => { | ||
describe('handling a GET query', () => { | ||
const mockQueryRequest = { | ||
method: 'GET', | ||
query: { | ||
query: '{ testString }', | ||
}, | ||
options: { | ||
schema, | ||
}, | ||
}; | ||
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it('raises a 400 error if the query is missing', () => { | ||
const noQueryRequest = Object.assign({}, mockQueryRequest, { | ||
query: 'foo', | ||
}); | ||
return runHttpQuery([], noQueryRequest).catch(err => { | ||
expect(err.statusCode).to.equal(400); | ||
expect(err.message).to.equal('Must provide query string.'); | ||
}); | ||
}); | ||
}); | ||
}); |
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