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test: add tests for wasm/dasumpw
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‎lib/node_modules/@stdlib/blas/ext/base/wasm/dasumpw/test/test.js‎

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2024 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var tape = require( 'tape' );
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var dasumpw = require( './../lib' );
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// TESTS //
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tape( 'main export is an object', function test( t ) {
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t.ok( true, __filename );
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t.strictEqual( typeof dasumpw, 'object', 'returns expected value' );
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t.end();
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});
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tape( 'attached to the main export is a `main` method', function test( t ) {
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t.strictEqual( typeof dasumpw.main, 'function', 'returns expected value' );
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t.end();
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});
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tape( 'attached to the main export is an `ndarray` method', function test( t ) {
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t.strictEqual( typeof dasumpw.ndarray, 'function', 'returns expected value' );
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t.end();
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});
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tape( 'attached to the main export is a `Module` constructor', function test( t ) {
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t.strictEqual( typeof dasumpw.Module, 'function', 'returns expected value' );
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t.end();
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});
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tape( 'the main export is a `Module` instance', function test( t ) {
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t.strictEqual( dasumpw instanceof dasumpw.Module, true, 'returns expected value' );
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t.end();
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});

‎lib/node_modules/@stdlib/blas/ext/base/wasm/dasumpw/test/test.main.js‎

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2020 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var tape = require( 'tape' );
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var isnan = require( '@stdlib/math/base/assert/is-nan' );
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var Float64Array = require( '@stdlib/array/float64' );
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var dasumpw = require( './../lib' );
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// TESTS //
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tape( 'main export is an object', function test( t ) {
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t.ok( true, __filename );
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t.strictEqual( typeof dasumpw, 'object', 'main export is an object' );
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t.end();
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});
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tape( 'the function has an arity of 3', function test( t ) {
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t.strictEqual( dasumpw.main.length, 3, 'returns expected value' );
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t.end();
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});
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tape( 'the function calculates the sum of absolute values', function test( t ) {
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var x;
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var v;
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var i;
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x = new Float64Array( [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0, 0.0, -3.0, 3.0 ] );
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v = dasumpw.main( x.length, x, 1 );
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t.strictEqual( v, 21.0, 'returns expected value' );
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x = new Float64Array( [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ] );
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v = dasumpw.main( x.length, x, 1 );
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t.strictEqual( v, 15.0, 'returns expected value' );
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x = new Float64Array( [ -4.0, -4.0 ] );
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v = dasumpw.main( x.length, x, 1 );
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t.strictEqual( v, 8.0, 'returns expected value' );
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x = new Float64Array( [ NaN, 4.0 ] );
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v = dasumpw.main( x.length, x, 1 );
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t.strictEqual( isnan( v ), true, 'returns expected value' );
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x = new Float64Array( [ 1.0, 1.0e100, 1.0, -1.0e100 ] );
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v = dasumpw.main( x.length, x, 1 );
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t.strictEqual( v, 2.0e100, 'returns expected value' );
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x = new Float64Array( 1e3 );
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for ( i = 0; i < 1e3; i++ ) {
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x[ i ] = i + 1;
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}
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v = dasumpw.main( x.length, x, 1 );
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t.strictEqual( v, 500500.0, 'returns expected value' );
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t.end();
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});
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tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `0.0`', function test( t ) {
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var x;
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var v;
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x = new Float64Array( [ 1.0, -2.0, -4.0, 5.0, 3.0 ] );
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v = dasumpw.main( 0, x, 1 );
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t.strictEqual( v, 0.0, 'returns expected value' );
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v = dasumpw.main( -1, x, 1 );
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t.strictEqual( v, 0.0, 'returns expected value' );
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t.end();
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});
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tape( 'if provided an `N` parameter equal to `1`, the function returns the first element', function test( t ) {
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var x;
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var v;
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x = new Float64Array( [ 1.0, -2.0, -4.0, 5.0, 3.0 ] );
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v = dasumpw.main( 1, x, 1 );
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t.strictEqual( v, 1.0, 'returns expected value' );
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t.end();
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});
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tape( 'the function supports a `stride` parameter', function test( t ) {
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var x;
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var v;
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var N;
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x = new Float64Array([
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1.0, // 0
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2.0,
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2.0, // 1
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-7.0,
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-2.0, // 2
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3.0,
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4.0, // 3
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2.0
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]);
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N = 4;
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v = dasumpw.main( N, x, 2 );
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t.strictEqual( v, 9.0, 'returns expected value' );
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t.end();
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});
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tape( 'the function supports a negative `stride` parameter', function test( t ) {
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var N;
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var x;
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var v;
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var i;
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x = new Float64Array([
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1.0, // 3
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2.0,
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2.0, // 2
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-7.0,
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-2.0, // 1
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3.0,
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4.0, // 0
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2.0
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]);
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N = 4;
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v = dasumpw.main( N, x, -2 );
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t.strictEqual( v, 9.0, 'returns expected value' );
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x = new Float64Array( 1e3 );
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for ( i = 0; i < 1e3; i++ ) {
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x[ i ] = i + 1;
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}
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v = dasumpw.main( x.length, x, -1 );
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t.strictEqual( v, 500500.0, 'returns expected value' );
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t.end();
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});
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tape( 'if provided a `stride` parameter equal to `0`, the function returns the sum of the first element repeated N times', function test( t ) {
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var x;
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var v;
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x = new Float64Array( [ 1.0, -2.0, -4.0, 5.0, 3.0 ] );
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v = dasumpw.main( x.length, x, 0 );
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t.strictEqual( v, 5.0, 'returns expected value' );
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t.end();
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});
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tape( 'the function supports view offsets', function test( t ) {
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var x0;
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var x1;
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var v;
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var N;
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x0 = new Float64Array([
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2.0,
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1.0, // 0
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2.0,
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-2.0, // 1
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-2.0,
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2.0, // 2
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3.0,
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4.0, // 3
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6.0
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]);
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N = 4;
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x1 = new Float64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
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v = dasumpw.main( N, x1, 2 );
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t.strictEqual( v, 9.0, 'returns expected value' );
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t.end();
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});

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