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refactor: the getOptions method returns empty object on empty query #167

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merged 1 commit into from Mar 17, 2020
Merged

refactor: the getOptions method returns empty object on empty query #167

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2 changes: 1 addition & 1 deletion lib/getOptions.js
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Expand Up @@ -11,7 +11,7 @@ function getOptions(loaderContext) {

if (!query || typeof query !== 'object') {
// Not object-like queries are not supported.
return null;
return {};
}

return query;
Expand Down
132 changes: 75 additions & 57 deletions test/getOptions.test.js
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Expand Up @@ -3,62 +3,80 @@
const loaderUtils = require('../lib');

describe('getOptions()', () => {
describe('when loaderContext.query is a string with length > 0', () => {
it('should call parseQuery() and return its result', () => {
expect(
loaderUtils.getOptions({
query: '?something=getOptions_cannot_parse',
})
).toEqual({ something: 'getOptions_cannot_parse' });
});
});
describe('when loaderContext.query is an empty string', () => {
it('should return null', () => {
expect(
loaderUtils.getOptions({
query: '',
})
).toEqual(null);
});
});
describe('when loaderContext.query is an object', () => {
it('should just return it', () => {
const query = {};
expect(
loaderUtils.getOptions({
query,
})
).toEqual(query);
});
});
describe('when loaderContext.query is an array', () => {
it('should just return it', () => {
const query = [];
expect(loaderUtils.getOptions({ query })).toEqual(query);
});
});
describe('when loaderContext.query is anything else', () => {
it('should return null', () => {
expect(
loaderUtils.getOptions({
query: undefined,
})
).toEqual(null);
expect(
loaderUtils.getOptions({
query: null,
})
).toEqual(null);
expect(
loaderUtils.getOptions({
query: 1,
})
).toEqual(null);
expect(
loaderUtils.getOptions({
query: 0,
})
).toEqual(null);
});
it('should work', () => {
expect(
loaderUtils.getOptions({
query: true,
})
).toEqual({});
expect(
loaderUtils.getOptions({
query: false,
})
).toEqual({});
expect(
loaderUtils.getOptions({
query: null,
})
).toEqual({});
expect(
loaderUtils.getOptions({
query: undefined,
})
).toEqual({});
expect(
loaderUtils.getOptions({
query: 1,
})
).toEqual({});
expect(
loaderUtils.getOptions({
query: 0,
})
).toEqual({});
expect(
loaderUtils.getOptions({
query: -0,
})
).toEqual({});
expect(
loaderUtils.getOptions({
query: -1,
})
).toEqual({});
expect(
loaderUtils.getOptions({
query: '',
})
).toEqual({});
expect(
loaderUtils.getOptions({
query: '?something=getOptions_cannot_parse',
})
).toEqual({ something: 'getOptions_cannot_parse' });

const query1 = {};

expect(
loaderUtils.getOptions({
query: query1,
})
).toEqual(query1);

const query2 = { foo: { bar: 'baz' } };

expect(
loaderUtils.getOptions({
query: query2,
})
).toEqual(query2);

const query3 = [];

expect(loaderUtils.getOptions({ query: query3 })).toEqual(query3);

const query4 = [1, true, 'foobar'];

expect(loaderUtils.getOptions({ query: query4 })).toEqual(query4);
});
});