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spec.js
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spec.js
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var assert = require('assert');
var time = require('time');
var translate = require('./');
var Instance = translate.Instance;
describe('translate', function() {
var instance;
beforeEach(function() {
instance = new Instance();
});
it('is a function', function() {
assert.isFunction(instance.translate);
});
it('is backward-compatible', function() {
assert.isFunction(translate);
assert.isFunction(translate.translate);
});
describe('when called', function() {
describe('with a non-empty string or an array as first argument', function() {
it('does not throw an invalid argument error', function() {
assert.doesNotThrow(function() { instance.translate('foo'); }, /invalid argument/);
assert.doesNotThrow(function() { instance.translate(['foo']); }, /invalid argument/);
});
describe('with the default locale present', function() {
describe('without a current scope or provided scope option', function() {
it('generates the correct normalized keys', function() {
assert.equal(instance.translate('foo'), 'missing translation: en.foo');
});
});
describe('with a current scope present', function() {
it('generates the correct normalized keys', function() {
instance.withScope('other', function() {
assert.equal(instance.translate('foo'), 'missing translation: en.other.foo');
});
});
});
describe('with a scope provided as option', function() {
it('generates the correct normalized keys', function() {
assert.equal(instance.translate('foo', { scope: 'other' }), 'missing translation: en.other.foo');
});
});
});
describe('with a different locale present', function() {
describe('without a current scope or provided scope option', function() {
it('generates the correct normalized keys', function() {
instance.withLocale('de', function() {
assert.equal(instance.translate('foo'), 'missing translation: de.foo');
});
});
});
describe('with a current scope present', function() {
it('generates the correct normalized keys', function() {
instance.withLocale('de', function() {
instance.withScope('other', function() {
assert.equal(instance.translate('foo'), 'missing translation: de.other.foo');
});
});
});
});
describe('with a scope provided as option', function() {
it('generates the correct normalized keys', function() {
instance.withLocale('de', function() {
assert.equal(instance.translate('foo', { scope: 'other' }), 'missing translation: de.other.foo');
});
});
});
});
describe('with a locale provided as option', function() {
describe('without a current scope or provided scope option', function() {
it('generates the correct normalized keys', function() {
assert.equal(instance.translate('foo', { locale: 'de' }), 'missing translation: de.foo');
});
});
describe('with a current scope present', function() {
it('generates the correct normalized keys', function() {
instance.withScope('other', function() {
assert.equal(instance.translate('foo', { locale: 'de' }), 'missing translation: de.other.foo');
});
});
});
describe('with a scope provided as option', function() {
it('generates the correct normalized keys', function() {
assert.equal(instance.translate('foo', { locale: 'de', scope: 'other' }), 'missing translation: de.other.foo');
});
});
});
describe('with options provided', function() {
it('does not mutate these options', function() {
var options = { locale: 'en', scope: ['foo1', 'foo2'], count: 3, bar: { baz: 'bum' } };
instance.translate('boing', options);
assert.deepEqual(options, { locale: 'en', scope: ['foo1', 'foo2'], count: 3, bar: { baz: 'bum' } });
});
});
describe('with a translation for the key present', function() {
it('returns that translation', function() {
instance.registerTranslations('en', { foo: { bar: { baz: { bam: 'boo' } } } });
// strings
assert.equal(instance.translate('foo.bar.baz.bam'), 'boo');
assert.equal(instance.translate('bar.baz.bam', { scope: 'foo' }), 'boo');
assert.equal(instance.translate('baz.bam', { scope: 'foo.bar' }), 'boo');
assert.equal(instance.translate('bam', { scope: 'foo.bar.baz' }), 'boo');
// arrays
assert.equal(instance.translate(['foo', 'bar', 'baz', 'bam']), 'boo');
assert.equal(instance.translate(['bar', 'baz', 'bam'], { scope: ['foo'] }), 'boo');
assert.equal(instance.translate(['baz', 'bam'], { scope: ['foo', 'bar'] }), 'boo');
assert.equal(instance.translate(['bam'], { scope: ['foo', 'bar', 'baz'] }), 'boo');
// mixed
assert.equal(instance.translate(['foo.bar', 'baz', 'bam']), 'boo');
assert.equal(instance.translate(['bar', 'baz.bam'], { scope: 'foo' }), 'boo');
assert.equal(instance.translate(['baz', 'bam'], { scope: 'foo.bar' }), 'boo');
assert.equal(instance.translate('bam', { scope: ['foo.bar', 'baz'] }), 'boo');
// strange looking
assert.equal(instance.translate(['..foo.bar', 'baz', '', 'bam']), 'boo');
assert.equal(instance.translate(['bar', 'baz..bam.'], { scope: '.foo' }), 'boo');
assert.equal(instance.translate(['baz', null, 'bam'], { scope: 'foo.bar.' }), 'boo');
assert.equal(instance.translate('bam...', { scope: [null, 'foo..bar', '', 'baz'] }), 'boo');
});
describe('with a `count` provided as option', function() {
it('correctly pluralizes the translated value', function() {
instance.registerTranslations('en', { foo: { zero: 'no items', one: 'one item', other: '%(count)s items' } });
assert.equal(instance.translate('foo', { count: 0 }), 'no items');
assert.equal(instance.translate('foo', { count: 1 }), 'one item');
assert.equal(instance.translate('foo', { count: 2 }), '2 items');
assert.equal(instance.translate('foo', { count: 42 }), '42 items');
});
});
describe('with a `separator` provided as option', function() {
it('correctly returns single array with key', function() {
instance.registerTranslations('en', {
'long.key.with.dots.in.name': 'Key with dots doesn\'t get split and returns correctly',
another: {
key: 'bar'
},
mixed: {
'dots.and': {
separator: 'bingo'
}
}
});
assert.equal(instance.translate('long.key.with.dots.in.name', { separator: '-' }), 'Key with dots doesn\'t get split and returns correctly');
assert.equal(instance.translate('long.key.with.dots.in.name.not-found', { separator: '-' }), 'missing translation: en-long.key.with.dots.in.name.not-found');
assert.equal(instance.translate('another-key', { separator: '-' }), 'bar');
assert.equal(instance.translate('mixed-dots.and-separator', { separator: '-' }), 'bingo');
});
it('correctly returns nested key when using `*` as seperator', function() {
instance.registerTranslations('en', { "long": { key: { "with": { dots: { "in": { name: 'boo' } } } }} });
assert.equal(instance.translate('long*key*with*dots*in*name', { separator: '*' }), 'boo');
});
});
describe('with other options provided', function() {
describe('by default', function() {
it('interpolates these options into the translated value', function() {
instance.registerTranslations('en', { foo: 'Hi %(name)s! See you %(when)s!' });
assert.equal(instance.translate('foo', { name: 'Paul', when: 'later', where: 'home' }), 'Hi Paul! See you later!');
instance.registerTranslations('en', { foo: 'Hello %(users[0].name)s and %(users[1].name)s!' });
assert.equal(instance.translate('foo', { users: [{ name: 'Molly' }, { name: 'Polly' }] }), 'Hello Molly and Polly!');
});
it('interpolates the registered interpolations into the translated value', function() {
var current = instance._registry.interpolations;
instance.registerTranslations('en', {'hello':'Hello from %(brand)s!'});
instance.registerInterpolations({brand:'Z'});
assert.equal(instance.translate('hello'), 'Hello from Z!');
instance._registry.interpolations = current;
instance.registerInterpolations({ app_name: 'My Cool App', question: 'How are you today?' });
instance.registerTranslations('en', { greeting: 'Welcome to %(app_name)s, %(name)s! %(question)s' });
assert.equal(instance.translate('greeting', { name: 'Martin' }), 'Welcome to My Cool App, Martin! How are you today?');
assert.equal(instance.translate('greeting', { name: 'Martin', app_name: 'The Foo App' }), 'Welcome to The Foo App, Martin! How are you today?');
instance._registry.interpolations = current;
});
});
describe('with the `interpolate` options set to `false`', function() {
it('interpolates these options into the translated value', function() {
instance.registerTranslations('en', { foo: 'Hi %(name)s! See you %(when)s!' });
assert.equal(instance.translate('foo', { interpolate: false, name: 'Paul', when: 'later', where: 'home' }), 'Hi %(name)s! See you %(when)s!');
});
});
});
});
describe('with a translation for a prefix of the key present', function() {
it('returns the remaining translation part', function() {
instance.registerTranslations('en', { foo: { bar: { baz: { zero: 'no items', one: 'one item', other: '%(count)s items' } } } });
assert.deepEqual(instance.translate('baz', { scope: ['foo', 'bar'] }), { zero: 'no items', one: 'one item', other: '%(count)s items' });
});
});
describe('with an array-type translation for the key present', function() {
it('returns the array that key points to', function() {
instance.registerTranslations('en', { foo: { bar: { baz: [1, 'A', 0.42] } } });
assert.deepEqual(instance.translate(['bar', 'baz'], { scope: 'foo' }), [1, 'A', 0.42]);
});
});
describe('with a function-type translation for the key present', function() {
it('returns the array that key points to', function() {
var myFunc = function() {};
instance.registerTranslations('en', { foo: { bar: { baz: myFunc } } });
assert.equal(instance.translate(['bar', 'baz'], { scope: 'foo' }), myFunc);
});
});
describe('with a function-type fallback present', function() {
it('returns the array that key points to', function() {
var myFunc = function() { return 'Here I am!'; };
var myFunc2 = function(x) { return 'Here ' + x + ' are!'; };
var fallbacks = [':i_dont_exist_either', myFunc, 'Should not be returned'];
assert.equal(instance.translate('i_dont_exist', { fallback: myFunc }), 'Here I am!');
assert.equal(instance.translate('i_dont_exist', { fallback: myFunc2, object: 'you' }), 'Here you are!');
assert.equal(instance.translate('i_dont_exist', { fallback: myFunc2 }), 'Here i_dont_exist are!');
assert.equal(instance.translate('i_dont_exist', { fallback: fallbacks }), 'Here I am!');
});
});
describe('without a translation for the key present', function() {
it('returns a string "missing translation: %(locale).%(scope).%(key)"', function() {
assert.deepEqual(instance.translate('bar', { locale: 'unknown', scope: 'foo' }), 'missing translation: unknown.foo.bar');
});
describe('with a `fallback` provided as option', function() {
it('returns the fallback', function() {
assert.equal(instance.translate('baz', { locale: 'foo', scope: 'bar', fallback: 'boom' }), 'boom');
assert.equal(instance.translate('baz', { locale: 'foo', scope: 'bar', fallback: 'Hello, %(name)s!', name: 'Martin' }), 'Hello, Martin!');
assert.equal(instance.translate('bazz', { locale: 'en', scope: 'bar', fallback: { zero: 'no items', one: 'one item', other: '%(count)s items' }, count: 0 }), 'no items');
assert.equal(instance.translate('bazz', { locale: 'en', scope: 'bar', fallback: { zero: 'no items', one: 'one item', other: '%(count)s items' }, count: 1 }), 'one item');
assert.equal(instance.translate('bazz', { locale: 'en', scope: 'bar', fallback: { zero: 'no items', one: 'one item', other: '%(count)s items' }, count: 2 }), '2 items');
assert.deepEqual(instance.translate('baz', { locale: 'foo', scope: 'bar', fallback: { oh: 'yeah' } }), { oh: 'yeah' });
assert.deepEqual(instance.translate('baz', { locale: 'foo', scope: 'bar', fallback: [1, 'A', 0.42] }), 1);
});
it('translates the fallback if given as "symbol" or array', function() {
instance.registerTranslations('en', { foo: { bar: 'bar', baz: 'baz' } });
assert.equal(instance.translate('missing', { fallback: 'default' }), 'default');
assert.equal(instance.translate('missing', { fallback: ':foo.bar' }), 'bar');
assert.equal(instance.translate('missing', { fallback: ':bar', scope: 'foo' }), 'bar');
assert.equal(instance.translate('missing', { fallback: [':also_missing', ':foo.bar'] }), 'bar');
assert.matches(instance.translate('missing', { fallback: [':also_missing', ':foo.missed'] }), /missing translation/);
});
});
describe('with a global `fallbackLocale` present', function() {
it('returns the entry of the fallback locale', function() {
instance.registerTranslations('de', { bar: { baz: 'bam' } });
instance.registerTranslations('de', { hello: 'Hallo %(name)s!' });
assert.equal(instance.translate('baz', { locale: 'foo', scope: 'bar' }), 'missing translation: foo.bar.baz');
assert.equal(instance.translate('hello', { locale: 'foo', name: 'Martin' }), 'missing translation: foo.hello');
var previousFallbackLocale = instance.setFallbackLocale('de');
assert.equal(instance.translate('baz', { locale: 'foo', scope: 'bar' }), 'bam');
assert.equal(instance.translate('hello', { locale: 'foo', name: 'Martin' }), 'Hallo Martin!');
instance.setFallbackLocale(previousFallbackLocale);
});
});
describe('with a `fallbackLocale` provided as option', function() {
it('returns the entry of the fallback locale', function() {
instance.registerTranslations('en', { bar: { baz: 'bam' } });
instance.registerTranslations('en', { hello: 'Hello, %(name)s!' });
assert.equal(instance.translate('baz', { locale: 'foo', scope: 'bar', fallbackLocale: 'en' }), 'bam');
assert.equal(instance.translate('hello', { locale: 'foo', fallbackLocale: 'en', name: 'Martin' }), 'Hello, Martin!');
});
});
});
});
describe('without a valid key as first argument', function() {
it('throws an invalid argument error', function() {
var keys = [undefined, null, 42, {}, new Date(), /./, function() {}, [], ''];
for (var i = 0, ii = keys.length; i < ii; i++) {
assert.throws(function() { instance.translate(keys[i]); }, /invalid argument/);
}
});
});
describe('with global interpolate setting set to false', function() {
it('will not interpolate', function() {
var current = instance._registry.interpolations;
instance.registerTranslations('en', { 'hello':'Hello from %(brand)s!' });
instance.registerInterpolations({ brand: 'Z' });
assert.equal(instance.translate('hello'), 'Hello from Z!');
var prev = instance.setInterpolate(false);
assert.equal(instance.translate('hello'), 'Hello from %(brand)s!');
assert.equal(instance.translate('hello', { interpolate: true }), 'Hello from %(brand)s!');
instance.setInterpolate(prev);
instance._registry.interpolations = current;
});
});
});
describe('#translate', function() {
it('is a function', function() {
assert.isFunction(instance.translate);
});
});
describe('#getLocale', function() {
it('is a function', function() {
assert.isFunction(instance.getLocale);
});
it('returns the locale stored in the registry', function() {
assert.equal(instance.getLocale(), instance._registry.locale);
});
it('returns "en" by default', function() {
assert.equal(instance.getLocale(), 'en');
});
});
describe('#setLocale', function() {
it('is a function', function() {
assert.isFunction(instance.setLocale);
});
it('sets the locale stored in the registry', function() {
instance.setLocale('foo');
assert.equal(instance._registry.locale, 'foo');
});
it('returns the previous locale that was stored in the registry', function() {
var current = instance.getLocale();
var previous = instance.setLocale(current + 'x');
assert.equal(previous, current);
});
describe('when called with a locale that differs from the current one', function() {
it('emits a "localechange" event', function(done) {
var handler = function() { done() };
instance.onLocaleChange(handler);
instance.setLocale(instance.getLocale() + 'x');
instance.offLocaleChange(handler);
});
});
describe('when called with the current locale', function() {
it('does not emit a "localechange" event', function(done) {
var handler = function() { done('event was emitted'); };
instance.onLocaleChange(handler);
instance.setLocale(instance.getLocale());
instance.offLocaleChange(handler);
setTimeout(done, 100);
});
});
});
describe('#getFallbackLocale', function() {
it('is a function', function() {
assert.isFunction(instance.getFallbackLocale);
});
it('returns the fallback locale stored in the registry', function() {
assert.equal(instance.getFallbackLocale(), instance._registry.fallbackLocale);
});
it('returns null by default', function() {
assert.strictEqual(instance.getFallbackLocale(), null);
});
});
describe('#setFallbackLocale', function() {
it('is a function', function() {
assert.isFunction(instance.setFallbackLocale);
});
it('sets the fallback locale stored in the registry', function() {
instance.setFallbackLocale('foo');
assert.equal(instance._registry.fallbackLocale, 'foo');
});
it('returns the previous fallback locale that was stored in the registry', function() {
var current = instance.getFallbackLocale();
var previous = instance.setFallbackLocale(current + 'x');
assert.equal(previous, current);
});
});
describe('#getAvailableLocales', function() {
it('is a function', function() {
assert.isFunction(instance.getAvailableLocales);
});
it('returns the locales of the registered translations by default', function() {
assert.deepEqual(instance.getAvailableLocales(), Object.keys(instance._registry.translations));
});
});
describe('#setAvailableLocales', function() {
it('is a function', function() {
assert.isFunction(instance.setAvailableLocales);
});
it('sets the locales available', function() {
instance.setAvailableLocales(['foo', 'bar']);
assert.deepEqual(instance._registry.availableLocales, ['foo', 'bar']);
});
it('returns the previous available locales', function() {
var current = instance.getAvailableLocales();
var previous = instance.setAvailableLocales(current.concat('x'));
assert.deepEqual(previous, current);
});
});
describe('#withLocale', function() {
it('is a function', function() {
assert.isFunction(instance.withLocale);
});
it('temporarily changes the current locale within the callback', function() {
var locale = instance.getLocale();
instance.withLocale(locale + 'x', function() {
assert.equal(instance.getLocale(), locale + 'x');
});
assert.equal(instance.getLocale(), locale);
});
it('allows a custom callback context to be set', function() {
instance.withLocale('foo', function() {
assert.equal(this.bar, 'baz');
}, { bar: 'baz' })
});
it('does not emit a "localechange" event', function(done) {
var handler = function() { done('event was emitted'); };
instance.onLocaleChange(handler);
instance.withLocale(instance.getLocale() + 'x', function() {});
instance.offLocaleChange(handler);
setTimeout(done, 100);
});
it('returns the return value of the callback', function() {
var result = instance.withLocale('foo', function() { return 'bar'; });
assert.equal(result, 'bar');
});
});
describe('#withScope', function() {
it('is a function', function() {
assert.isFunction(instance.withScope);
});
it('temporarily changes the current scope within the callback', function() {
var scope = instance._registry.scope;
instance.withScope(scope + 'x', function() {
assert.equal(instance._registry.scope, scope + 'x');
});
assert.equal(instance._registry.scope, scope);
});
it('allows a custom callback context to be set', function() {
instance.withScope('foo', function() {
assert.equal(this.bar, 'baz');
}, { bar: 'baz' })
});
it('returns the return value of the callback', function() {
var result = instance.withScope('foo', function() { return 'bar'; });
assert.equal(result, 'bar');
});
});
describe('#onLocaleChange', function() {
it('is a function', function() {
assert.isFunction(instance.onLocaleChange);
});
it('is called when the locale changes', function(done) {
var handler = function() { done(); };
instance.onLocaleChange(handler);
instance.setLocale(instance.getLocale() + 'x');
instance.offLocaleChange(handler);
});
it('is not called when the locale does not change', function(done) {
var handler = function() { done('function was called'); };
instance.onLocaleChange(handler);
instance.setLocale(instance.getLocale());
instance.offLocaleChange(handler);
setTimeout(done, 100);
});
describe('when called', function() {
it('exposes both the new and old locale as arguments', function(done) {
var oldLocale = instance.getLocale();
var newLocale = oldLocale + 'x';
var handler = function(locale, previousLocale) {
assert.equal(locale, newLocale);
assert.equal(previousLocale, oldLocale);
done();
};
instance.onLocaleChange(handler);
instance.setLocale(newLocale);
instance.offLocaleChange(handler);
});
});
describe('when called more than 10 times', function() {
it('does not let Node issue a warning about a possible memory leak', function() {
var oldConsoleError = console.error;
console.error = function(message) {
if (/EventEmitter memory leak/.test(message)) {
assert.fail(null, null, 'Node issues a warning about a possible memory leak', null);
} else {
oldConsoleError.apply(console, arguments);
}
};
var handlers = [], handler, i;
for (i = 0; i < 11; i++) {
handler = function() {};
instance.onLocaleChange(handler);
handlers.push(handler);
}
for (i = 0; i < 11; i++) {
instance.offLocaleChange(handlers[i]);
}
console.error = oldConsoleError
});
})
});
describe('#offLocaleChange', function() {
it('is a function', function() {
assert.isFunction(instance.offLocaleChange);
});
it('stops the emission of events to the handler', function(done) {
var count = 0;
var handler = function() { count++; };
instance.onLocaleChange(handler);
instance.setLocale(instance.getLocale() + 'x');
instance.setLocale(instance.getLocale() + 'x');
instance.offLocaleChange(handler);
instance.setLocale(instance.getLocale() + 'x');
setTimeout(function() {
assert.equal(count, 2, 'handler was called although deactivated');
done();
}, 100);
});
});
describe('#onTranslationNotFound', function() {
it('is a function', function() {
assert.isFunction(instance.onTranslationNotFound);
});
it('is called when the translation is missing and a fallback is provided as option', function(done) {
var handler = function() { done(); };
instance.onTranslationNotFound(handler);
instance.translate('foo', { fallback: 'bar' });
instance.offTranslationNotFound(handler);
});
it('is not called when the translation is missing and no fallback is provided as option', function(done) {
var handler = function() { done('function was called'); };
instance.onTranslationNotFound(handler);
instance.translate('foo', { fallback: undefined });
instance.offTranslationNotFound(handler);
setTimeout(done, 100);
});
it('is not called when a translation exists', function(done) {
var handler = function() { done('function was called'); };
instance.registerTranslations('xx', { foo: 'bar' });
instance.onTranslationNotFound(handler);
instance.translate('foo', { locale: 'xx', fallback: 'baz' });
instance.offTranslationNotFound(handler);
setTimeout(done, 100);
});
describe('when called', function() {
it('exposes the current locale, key, and fallback as arguments', function(done) {
var handler = function(locale, key, fallback) {
assert.equal('yy', locale);
assert.equal('foo', key);
assert.equal('bar', fallback);
done();
};
instance.onTranslationNotFound(handler);
instance.translate('foo', { locale: 'yy', fallback: 'bar' });
instance.offTranslationNotFound(handler);
});
});
});
describe('#offTranslationNotFound', function() {
it('is a function', function() {
assert.isFunction(instance.offTranslationNotFound);
});
it('stops the emission of events to the handler', function(done) {
var count = 0;
var handler = function() { count++; };
instance.onTranslationNotFound(handler);
instance.translate('foo', { fallback: 'bar' });
instance.translate('foo', { fallback: 'bar' });
instance.offTranslationNotFound(handler);
instance.translate('foo', { fallback: 'bar' });
setTimeout(function() {
assert.equal(count, 2, 'handler was called although deactivated');
done();
}, 100);
});
});
describe('#getSeparator', function() {
it('is a function', function() {
assert.isFunction(instance.getSeparator);
});
it('returns the separator stored in the registry', function() {
assert.equal(instance.getSeparator(), instance._registry.separator);
});
it('returns "." by default', function() {
assert.equal(instance.getSeparator(), '.');
});
});
describe('#setSeparator', function() {
it('is a function', function() {
assert.isFunction(instance.setSeparator);
});
it('sets the separator stored in the registry', function() {
var prev = instance._registry.separator;
instance.setSeparator('*');
assert.equal(instance._registry.separator, '*');
instance._registry.separator = prev;
});
it('returns the previous separator that was stored in the registry', function() {
var current = instance.getSeparator();
var previous = instance.setSeparator(current + 'x');
assert.equal(previous, current);
instance.setSeparator(current);
});
});
describe('#getInterpolate', function() {
it('is a function', function() {
assert.isFunction(instance.getInterpolate);
});
it('returns the setting stored in the registry', function() {
assert.equal(instance.getInterpolate(), instance._registry.interpolate);
});
it('returns true by default', function() {
assert.equal(instance.getInterpolate(), true);
});
});
describe('#setInterpolate', function() {
it('is a function', function() {
assert.isFunction(instance.setInterpolate);
});
it('sets the interpolate stored in the registry', function() {
var prev = instance._registry.interpolate;
instance.setInterpolate(true);
assert.equal(instance._registry.interpolate, true);
instance._registry.interpolate = prev;
});
it('returns the previous interpolate that was stored in the registry', function() {
var current = instance.getInterpolate();
var previous = instance.setInterpolate(true);
assert.equal(previous, current);
instance.setInterpolate(current);
});
});
describe('#getKeyTransformer', function() {
it('is a function', function() {
assert.isFunction(instance.getKeyTransformer);
});
it('returns the setting stored in the registry', function() {
assert.equal(instance.getKeyTransformer(), instance._registry.keyTransformer);
});
});
describe('#setKeyTransformer', function() {
var transformer = function(key, options) {
assert.deepEqual({ locale: 'xx', bingo: 'bongo' }, options);
return key.toLowerCase();
};
it('is a function', function() {
assert.isFunction(instance.setKeyTransformer);
});
it('sets the keyTransformer stored in the registry', function() {
var prev = instance._registry.keyTransformer;
instance.setKeyTransformer(transformer);
assert.equal(instance._registry.keyTransformer, transformer);
instance._registry.keyTransformer = prev;
});
it('returns the previous keyTransformer that was stored in the registry', function() {
var current = instance.getKeyTransformer();
var previous = instance.setKeyTransformer(transformer);
assert.equal(previous, current);
instance.setKeyTransformer(current);
});
it('uses the custom key transformer when translating', function() {
instance.registerTranslations('xx', { foo: 'bar' });
var translation = instance.translate('FOO', { locale: 'xx', bingo: 'bongo' });
assert.matches(translation, /missing translation/);
instance.setKeyTransformer(transformer);
translation = instance.translate('FOO', { locale: 'xx', bingo: 'bongo' });
assert.equal('bar', translation);
});
});
describe('#withSeparator', function() {
it('is a function', function() {
assert.isFunction(instance.withSeparator);
});
it('temporarily changes the current separator within the callback', function() {
var separator = instance.getSeparator();
instance.withSeparator(separator + 'x', function() {
assert.equal(instance.getSeparator(), separator + 'x');
});
assert.equal(instance.getSeparator(), separator);
});
it('allows a custom callback context to be set', function() {
instance.withSeparator('foo', function() {
assert.equal(this.bar, 'baz');
}, { bar: 'baz' })
});
it('returns the return value of the callback', function() {
var result = instance.withSeparator('foo', function() { return 'bar'; });
assert.equal(result, 'bar');
});
});
describe('#localize', function() {
before(function() {
instance.setLocale('en');
});
it('is a function', function() {
assert.isFunction(instance.localize);
});
it('does not mutate these options', function() {
var options = { locale: 'en', scope: ['foo1', 'foo2'], count: 3, bar: { baz: 'bum' } };
instance.localize(new Date(), options);
assert.deepEqual(options, { locale: 'en', scope: ['foo1', 'foo2'], count: 3, bar: { baz: 'bum' } });
});
describe('when called without a date as first argument', function() {
it('throws an invalid argument error', function() {
assert.throws(function() {
instance.localize('foo');
}, /invalid argument/);
});
});
describe('when called with a date as first argument', function() {
var date = new time.Date('Thu Feb 6 2014 05:09:04 GMT+0100 (CET)');
date.setTimezone('America/Chicago');
describe('without providing options as second argument', function() {
it('returns the default localization for that date', function() {
var result = instance.localize(date);
assert.equal(result, 'Wed, 5 Feb 2014 22:09');
});
});
describe('providing a `format` key in the options', function() {
describe('with format = "default"', function() {
it('returns the default localization for that date', function() {
var result = instance.localize(date, { format: 'default' });
assert.equal(result, 'Wed, 5 Feb 2014 22:09');
});
});
describe('with format = "short"', function() {
it('returns the short localization for that date', function() {
var result = instance.localize(date, { format: 'short' });
assert.equal(result, '5 Feb 22:09');
});
});
describe('with format = "long"', function() {
it('returns the long localization for that date', function() {
var result = instance.localize(date, { format: 'long' });
assert.equal(result, 'Wednesday, February 5th, 2014 22:09:04 -06:00');
});
});
describe('with an unknown format', function() {
it('returns a string containing "missing translation"', function() {
var result = instance.localize(date, { format: '__invalid__' });
assert.matches(result, /missing translation/);
});
});
});
describe('providing a `type` key in the options', function() {
describe('with type = "datetime"', function() {
it('returns the default localization for that date', function() {
var result = instance.localize(date, { type: 'datetime' });
assert.equal(result, 'Wed, 5 Feb 2014 22:09');
});
});
describe('with type = "date"', function() {
it('returns the date localization for that date', function() {
var result = instance.localize(date, { type: 'date' });
assert.equal(result, 'Wed, 5 Feb 2014');
});
});
describe('with type = "time"', function() {
it('returns the time localization for that date', function() {
var result = instance.localize(date, { type: 'time' });
assert.equal(result, '22:09');
});
});
describe('with an unknown type', function() {
it('returns a string containing "missing translation"', function() {
var result = instance.localize(date, { type: '__invalid__' });
assert.matches(result, /missing translation/);
});
});
});
describe('providing both a `type` key and a `format` key in the options', function() {
describe('with type = "datetime" and format = "default"', function() {
it('returns the default localization for that date', function() {
var result = instance.localize(date, { type: 'datetime', format: 'default' });
assert.equal(result, 'Wed, 5 Feb 2014 22:09');
});
});
describe('with type = "datetime" and format = "short"', function() {
it('returns the short datetime localization for that date', function() {
var result = instance.localize(date, { type: 'datetime', format: 'short' });
assert.equal(result, '5 Feb 22:09');
});
});
describe('with type = "datetime" and format = "long"', function() {
it('returns the long datetime localization for that date', function() {
var result = instance.localize(date, { type: 'datetime', format: 'long' });
assert.equal(result, 'Wednesday, February 5th, 2014 22:09:04 -06:00');
});
});
describe('with type = "time" and format = "default"', function() {
it('returns the default time localization for that date', function() {
var result = instance.localize(date, { type: 'time', format: 'default' });
assert.equal(result, '22:09');
});
});
describe('with type = "time" and format = "short"', function() {
it('returns the short time localization for that date', function() {
var result = instance.localize(date, { type: 'time', format: 'short' });
assert.equal(result, '22:09');
});
});
describe('with type = "time" and format = "long"', function() {
it('returns the long time localization for that date', function() {
var result = instance.localize(date, { type: 'time', format: 'long' });
assert.equal(result, '22:09:04 -06:00');
});
});
describe('with type = "date" and format = "default"', function() {
it('returns the default date localization for that date', function() {
var result = instance.localize(date, { type: 'date', format: 'default' });
assert.equal(result, 'Wed, 5 Feb 2014');
});
});
describe('with type = "date" and format = "short"', function() {
it('returns the short date localization for that date', function() {
var result = instance.localize(date, { type: 'date', format: 'short' });
assert.equal(result, 'Feb 5');
});
});
describe('with type = "date" and format = "long"', function() {
it('returns the long date localization for that date', function() {
var result = instance.localize(date, { type: 'date', format: 'long' });
assert.equal(result, 'Wednesday, February 5th, 2014');
});
});
describe('with unknown type and unknown format', function() {
it('returns a string containing "missing translation"', function() {
var result = instance.localize(date, { type: '__invalid__', format: '__invalid__' });
assert.matches(result, /missing translation/);
});
});
});
describe('with locale set to "de"', function() {
var prev;
beforeEach(function() {
instance.registerTranslations('de', require('./locales/de'));
prev = instance.setLocale('de');
});
afterEach(function() {
instance.setLocale(prev);
});
describe('without providing options as second argument', function() {
it('returns the default localization for that date', function() {
var result = instance.localize(date);
assert.equal(result, 'Mi, 5. Feb 2014, 22:09 Uhr');
});
});