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test.ts
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44 lines (38 loc) · 1.36 KB
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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 arrayfcn = require( './index' );
// TESTS //
// The function returns a function...
{
arrayfcn( ( x: number ): boolean => x % 2 === 0 ); // $ExpectType Function
arrayfcn( ( x: number ): boolean => x % 2 !== 0 ); // $ExpectType Function
}
// The compiler throws an error if the function is provided an argument that is not a function...
{
arrayfcn( true ); // $ExpectError
arrayfcn( false ); // $ExpectError
arrayfcn( 3 ); // $ExpectError
arrayfcn( [] ); // $ExpectError
arrayfcn( {} ); // $ExpectError
arrayfcn( 'abc' ); // $ExpectError
}
// The compiler throws an error if the function is provided an unsupported number of arguments...
{
arrayfcn(); // $ExpectError
arrayfcn( ( x: number ): number => x, ( x: number ): number => x ); // $ExpectError
}