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@@ -0,0 +1,64 @@
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+/**
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+ * @license Copyright (c) 2003-2016, CKSource - Frederico Knabben. All rights reserved.
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+ * For licensing, see LICENSE.md.
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+ */
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+
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+'use strict';
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+
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+import Locale from '/ckeditor5/core/locale.js';
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+
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+describe( 'Locale', () => {
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+ let locale;
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+
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+ beforeEach( () => {
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+ locale = new Locale();
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+ } );
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+
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+ describe( 'constructor', () => {
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+ it( 'sets the lang', () => {
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+ const locale = new Locale( 'pl' );
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+
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+ expect( locale ).to.have.property( 'lang', 'pl' );
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+ } );
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+
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+ it( 'defaults lang to en', () => {
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+ const locale = new Locale();
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+
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+ expect( locale ).to.have.property( 'lang', 'en' );
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+ } );
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+ } );
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+
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+ describe( 't', () => {
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+ it( 'has the context bound', () => {
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+ const t = locale.t;
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+
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+ expect( t( 'Foo' ) ).to.equal( 'Foo' );
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+ } );
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+
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+ it( 'interpolates 1 value', () => {
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+ const t = locale.t;
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+
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+ expect( t( '%0 - %0', [ 'foo' ] ) ).to.equal( 'foo - foo' );
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+ } );
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+
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+ it( 'interpolates 3 values', () => {
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+ const t = locale.t;
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+
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+ expect( t( '%1 - %0 - %2', [ 'a', 'b', 'c' ] ) ).to.equal( 'b - a - c' );
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+ } );
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+
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+ // Those test make sure that if %0 is really to be used, then it's going to work.
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+ // It'd be a super rare case if one would need to use %0 and at the same time interpolate something.
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+ it( 'does not interpolate placeholders if values not passed', () => {
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+ const t = locale.t;
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+
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+ expect( t( '%1 - %0 - %2' ) ).to.equal( '%1 - %0 - %2' );
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+ } );
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+
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+ it( 'does not interpolate those placeholders for which values has not been passed', () => {
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+ const t = locale.t;
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+
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+ expect( t( '%1 - %0 - %2', [ 'a' ] ) ).to.equal( '%1 - a - %2' );
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+ } );
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+ } );
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+} );
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