graphql-typed-client
Version:
A tool that generates a strongly typed client library for any GraphQL endpoint. The client allows writing GraphQL queries as plain JS objects (with type safety, awesome code completion experience, custom scalar type mapping, type guards and more)
60 lines • 2.66 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
var getFieldFromPath_1 = require("./getFieldFromPath");
var linkTypeMap_1 = require("./linkTypeMap");
describe('getFieldFromPath', function () {
test('gets nested field definition', function () {
var typeMap = linkTypeMap_1.linkTypeMap({
Some: {
name: 'Some',
fields: {
other: { type: 'Other' },
unknown: { type: 'Unknown' },
},
},
Other: {
name: 'Other',
fields: {
some: { type: 'Some' },
scalar: { type: 'Scalar' },
unknown: { type: 'Unknown' },
union: { type: 'Union' },
},
},
Union: {
name: 'Union',
fields: {
on_Some: { type: 'Some' },
},
},
Scalar: {
name: 'Scalar',
},
});
expect(getFieldFromPath_1.getFieldFromPath(typeMap['Some'], ['other', 'some', 'other', 'scalar'])).toBe(typeMap.Other.fields.scalar);
expect(getFieldFromPath_1.getFieldFromPath(typeMap['Other'], ['union', 'other'])).toBe(typeMap.Some.fields.other);
});
describe('throws an error', function () {
test('when root is not provided', function () {
return expect(function () { return getFieldFromPath_1.getFieldFromPath(undefined, ['some']); }).toThrow('root type is not provided');
});
test('when the path is empty', function () { return expect(function () { return getFieldFromPath_1.getFieldFromPath({ name: 'Root' }, []); }).toThrow('path is empty'); });
test('when requesting a field on a type without fields', function () {
return expect(function () { return getFieldFromPath_1.getFieldFromPath({ name: 'Root' }, ['field']); }).toThrow('type `Root` does not have fields');
});
test("when requesting a field on a type that doesn't have it", function () {
return expect(function () {
var typeMap = linkTypeMap_1.linkTypeMap({
Root: {
name: 'Root',
fields: {
some: { type: 'Some' },
},
},
});
getFieldFromPath_1.getFieldFromPath(typeMap.Root, ['other']);
}).toThrow('type `Root` does not have a field `other`');
});
});
});
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