Steven Noble snoblenet

snoblenet / utils_contract_violated_with_return_value_inconsistency.js

Last active September 19, 2018 02:09

The contract between getPrefix() and prefixWord() is violated but this is not detected by the specs

	// utils/get_prefix.js
	// Changed the return value from 'mega' to 'hyper'
	export const getPrefix = () => 'hyper';

	// utils/prefix_word.js
	export const prefixWord = (prefixGetter, wordToPrefix) => prefixGetter() + wordToPrefix;

	// spec/utils/get_prefix_spec.js
	import getPrefix from '../../utils/get_prefix';

snoblenet / utils_contract_violated_with_return_type_inconsistency.js

Last active September 19, 2018 03:05

The contract between getPrefix() and prefixWord() is violated but this is not detected by the specs

	// utils/get_prefix.js
	// Changed the return value type from string to object
	export const getPrefix = () => ({ en: 'mega', fr: 'méga' });

	// utils/prefix_word.js
	export const prefixWord = (prefixGetter, wordToPrefix) => prefixGetter() + wordToPrefix;

	// spec/utils/get_prefix.js
	import getPrefix from '../../utils/get_prefix';

snoblenet / react_props_contract_respected_but_not_enforced.js

Last active September 19, 2018 03:10

The contracts between the components and the container are respected by the modules but not enforced by the specs

	// containers/form_container.js
	import Form from '../components/form_component';

	export const mapStateToProps = state => ({ username: state.username });
	export default connect(mapStateToProps)(Form);

	// components/form_component.js
	import PropTypes from 'prop-types';
	import React from 'react';

snoblenet / react_props_contract_violated_with_proptype_inconsistency.js

Last active September 19, 2018 03:12

The contracts between the components and the container are violated by the modules, but this is not detected by the specs

	// containers/form_container.js
	import Form from '../components/form_component';

	// The container passes a 'username' prop (type: string) to Form
	export const mapStateToProps = state => ({ username: state.username });
	export connect(mapStateToProps)(Form);

	// components/form_component.js
	import PropTypes from 'prop-types';
	import React from 'react';

snoblenet / utils_contract_respected_and_enforced.js

Last active September 19, 2018 02:59

The contract between getPrefix() and prefixWord() is enforced by the specs

	// utils/get_prefix.js
	export const getPrefix = (lang) => {
	if (lang === 'fr') return 'méga';
	return 'mega';
	};

	// utils/prefix_word.js
	export const prefixWord = (prefixGetter, wordToPrefix) => prefixGetter() + wordToPrefix;

	// spec/fixtures/prefix_fixtures.js

snoblenet / react_props_contract_respected_and_enforced.js

Last active October 30, 2018 05:16

The contracts between the components and the container are enforced by the specs

	// containers/form_container.js
	import Form from '../components/form_component';

	export const mapStateToProps = state => ({ username: state.username });
	export default connect(mapStateToProps)(Form);

	// components/form_component.js
	import PropTypes from 'prop-types';
	import React from 'react';
	const Form = class extends React.Component {