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/*
* @license Apache-2.0
*
* Copyright (c) 2019 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import whilst = require( './index' );
/**
* Predicate function.
*
* @param i - iteration index
* @returns a boolean
*/
function predicate( i: number ): boolean {
return ( i <= 10 );
}
/**
* Empty function.
*/
function noop() {
// Body is empty...
}
// TESTS //
// The function does not return a value...
{
whilst( noop, predicate ); // $ExpectType void
whilst( noop, predicate, {} ); // $ExpectType void
}
// The compiler throws an error if the function is provided a first argument which is not a function...
{
whilst( 'abc', predicate ); // $ExpectError
whilst( 5, predicate ); // $ExpectError
whilst( true, predicate ); // $ExpectError
whilst( false, predicate ); // $ExpectError
whilst( [], predicate ); // $ExpectError
whilst( {}, predicate ); // $ExpectError
}
// The compiler throws an error if the function is provided a second argument which is not a function...
{
whilst( noop, 'abc' ); // $ExpectError
whilst( noop, 5 ); // $ExpectError
whilst( noop, true ); // $ExpectError
whilst( noop, false ); // $ExpectError
whilst( noop, [] ); // $ExpectError
whilst( noop, {} ); // $ExpectError
}
// The function does not compile if provided fewer than two arguments...
{
whilst(); // $ExpectError
whilst( noop ); // $ExpectError
}
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