Add tests

kgryte · kgryte · commit 1d13b2bfbd43 · 2023-02-08T00:28:32.000-08:00
diff --git a/lib/node_modules/@stdlib/random/array/arcsine/test/test.main.js b/lib/node_modules/@stdlib/random/array/arcsine/test/test.main.js
@@ -0,0 +1,244 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2023 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.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var Float64Array = require( '@stdlib/array/float64' );
+var Float32Array = require( '@stdlib/array/float32' );
+var random = require( './../lib/main.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof random, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function throws an error if provided a first argument which is not a nonnegative integer', function test( t ) {
+	var values;
+	var i;
+
+	values = [
+		'5',
+		-5,
+		null,
+		true,
+		false,
+		void 0,
+		NaN,
+		[],
+		{},
+		function noop() {}
+	];
+
+	for ( i = 0; i < values.length; i++ ) {
+		t.throws( badValue( values[i] ), TypeError, 'throws an error when provided '+values[i] );
+	}
+	t.end();
+
+	function badValue( value ) {
+		return function badValue() {
+			random( value, 2.0, 5.0 );
+		};
+	}
+});
+
+tape( 'the function throws an error if provided a first argument which is not a nonnegative integer (options)', function test( t ) {
+	var values;
+	var i;
+
+	values = [
+		'5',
+		-5,
+		null,
+		true,
+		false,
+		void 0,
+		NaN,
+		[],
+		{},
+		function noop() {}
+	];
+
+	for ( i = 0; i < values.length; i++ ) {
+		t.throws( badValue( values[i] ), TypeError, 'throws an error when provided '+values[i] );
+	}
+	t.end();
+
+	function badValue( value ) {
+		return function badValue() {
+			random( value, 2.0, 5.0, {} );
+		};
+	}
+});
+
+tape( 'the function throws an error if provided an options argument which is not an object', function test( t ) {
+	var values;
+	var i;
+
+	values = [
+		'5',
+		5,
+		null,
+		true,
+		false,
+		void 0,
+		NaN,
+		[],
+		function noop() {}
+	];
+
+	for ( i = 0; i < values.length; i++ ) {
+		t.throws( badValue( values[i] ), TypeError, 'throws an error when provided '+values[i] );
+	}
+	t.end();
+
+	function badValue( value ) {
+		return function badValue() {
+			random( 10, 2.0, 5.0, value );
+		};
+	}
+});
+
+tape( 'the function throws an error if provided an invalid option', function test( t ) {
+	var values;
+	var i;
+
+	values = [
+		'5',
+		5,
+		null,
+		true,
+		false,
+		void 0,
+		NaN,
+		[],
+		{},
+		function noop() {}
+	];
+
+	for ( i = 0; i < values.length; i++ ) {
+		t.throws( badValue( values[i] ), TypeError, 'throws an error when provided '+values[i] );
+	}
+	t.end();
+
+	function badValue( value ) {
+		return function badValue() {
+			random( 10, 2.0, 5.0, {
+				'dtype': value
+			});
+		};
+	}
+});
+
+tape( 'the function returns an array containing pseudorandom numbers (default)', function test( t ) {
+	var actual;
+	var i;
+
+	actual = random( 10, 2.0, 5.0 );
+
+	t.strictEqual( actual instanceof Float64Array, true, 'returns expected value' );
+	t.strictEqual( actual.length, 10, 'returns expected value' );
+
+	for ( i = 0; i < actual.length; i++ ) {
+		t.strictEqual( typeof actual[ i ], 'number', 'returns expected value for index '+i );
+	}
+	t.end();
+});
+
+tape( 'the function supports specifying the output array data type (dtype=float64)', function test( t ) {
+	var actual;
+	var i;
+
+	actual = random( 10, 2.0, 5.0, {
+		'dtype': 'float64'
+	});
+
+	t.strictEqual( actual instanceof Float64Array, true, 'returns expected value' );
+	t.strictEqual( actual.length, 10, 'returns expected value' );
+
+	for ( i = 0; i < actual.length; i++ ) {
+		t.strictEqual( typeof actual[ i ], 'number', 'returns expected value for index '+i );
+	}
+	t.end();
+});
+
+tape( 'the function supports specifying the output array data type (dtype=float32)', function test( t ) {
+	var actual;
+	var i;
+
+	actual = random( 10, 2.0, 5.0, {
+		'dtype': 'float32'
+	});
+
+	t.strictEqual( actual instanceof Float32Array, true, 'returns expected value' );
+	t.strictEqual( actual.length, 10, 'returns expected value' );
+
+	for ( i = 0; i < actual.length; i++ ) {
+		t.strictEqual( typeof actual[ i ], 'number', 'returns expected value for index '+i );
+	}
+	t.end();
+});
+
+tape( 'the function supports specifying the output array data type (dtype=generic)', function test( t ) {
+	var actual;
+	var i;
+
+	actual = random( 10, 2.0, 5.0, {
+		'dtype': 'generic'
+	});
+
+	t.strictEqual( actual instanceof Array, true, 'returns expected value' );
+	t.strictEqual( actual.length, 10, 'returns expected value' );
+
+	for ( i = 0; i < actual.length; i++ ) {
+		t.strictEqual( typeof actual[ i ], 'number', 'returns expected value for index '+i );
+	}
+	t.end();
+});
+
+tape( 'the function supports setting the generator state', function test( t ) {
+	var state;
+	var arr;
+	var i;
+
+	// Move to a future state...
+	for ( i = 0; i < 100; i++ ) {
+		random( 2, 2.0, 5.0 );
+	}
+	// Capture the current state:
+	state = random.state;
+
+	// Move to a future state...
+	arr = random( 10, 2.0, 5.0 );
+	for ( i = 0; i < 100; i++ ) {
+		random( 2, 2.0, 5.0 );
+	}
+	// Set the state:
+	random.state = state;
+
+	// Replay previously generated values:
+	t.deepEqual( random( 10, 2.0, 5.0 ), arr, 'returns expected value' );
+
+	t.end();
+});
