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test: add initial tests
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‎lib/node_modules/@stdlib/lapack/base/dlaqr5/test/fixtures/a.json‎

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{
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"order": "row-major",
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"wantT": true,
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"wantZ": true,
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"kacc22": 0,
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"N": 4,
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"KTOP": 1,
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"KBOT": 4,
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"nshifts": 2,
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"SR": [ 1.1, 2.2 ],
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"strideSR": 1,
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"offsetSR": 0,
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"SI": [ 0.0, 0.0 ],
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"strideSI": 1,
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"offsetSI": 0,
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"H": [ 1.0, 1.0, 0.0, 0.0, 0.0, 2.0, 1.5, 0.0, 0.0, 0.0, 3.0, 2.0, 0.0, 0.0, 0.0, 4.0 ],
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"strideH1": 4,
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"strideH2": 1,
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"offsetH": 0,
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"LDH": 4,
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"H_mat": [
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[ 1.0, 1.0, 0.0, 0.0 ],
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[ 0.0, 2.0, 1.5, 0.0 ],
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[ 0.0, 0.0, 3.0, 2.0 ],
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[ 0.0, 0.0, 0.0, 4.0 ]
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],
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"iloZ": 1,
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"ihiZ": 4,
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"Z": [ 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0 ],
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"strideZ1": 4,
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"strideZ2": 1,
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"offsetZ": 0,
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"LDZ": 4,
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"Z_mat": [
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[ 1.0, 0.0, 0.0, 0.0 ],
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[ 0.0, 1.0, 0.0, 0.0 ],
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[ 0.0, 0.0, 1.0, 0.0 ],
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[ 0.0, 0.0, 0.0, 1.0 ]
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],
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"V": [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ],
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"strideV1": 2,
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"strideV2": 1,
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"offsetV": 0,
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"LDV": 2,
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"V_mat": [
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[ 0.0, 0.0 ],
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[ 0.0, 0.0 ],
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[ 0.0, 0.0 ]
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],
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"U": [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ],
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"strideU1": 2,
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"strideU2": 1,
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"offsetU": 0,
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"LDU": 2,
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"U_mat": [
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[ 0.0, 0.0 ],
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[ 0.0, 0.0 ],
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[ 0.0, 0.0 ],
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[ 0.0, 0.0 ],
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[ 0.0, 0.0 ]
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],
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"NH": 4,
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"WH": [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ],
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"strideWH1": 4,
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"strideWH2": 1,
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"offsetWH": 0,
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"LDWH": 4,
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"WH_mat": [
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[ 0.0, 0.0, 0.0, 0.0 ],
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[ 0.0, 0.0, 0.0, 0.0 ],
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[ 0.0, 0.0, 0.0, 0.0 ],
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[ 0.0, 0.0, 0.0, 0.0 ]
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],
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"NV": 4,
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"WV": [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ],
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"strideWV1": 4,
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"strideWV2": 1,
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"offsetWV": 0,
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"LDWV": 4,
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"WV_mat": [
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[ 0.0, 0.0, 0.0, 0.0 ],
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[ 0.0, 0.0, 0.0, 0.0 ],
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[ 0.0, 0.0, 0.0, 0.0 ],
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[ 0.0, 0.0, 0.0, 0.0 ]
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],
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"H_out": [ 1.0, 1.0, 0.0, 0.0, 0.0, 2.0, 1.5, 0.0, 0.0, 0.0, 3.0, 2.0, 0.0, 0.0, 0.0, 4.0 ],
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"H_out_mat": [
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[ 1.0, 1.0, 0.0, 0.0 ],
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[ 0.0, 2.0, 1.5, 0.0 ],
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[ 0.0, 0.0, 3.0, 2.0 ],
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[ 0.0, 0.0, 0.0, 4.0 ]
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],
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"Z_out": [ 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0 ],
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"Z_out_mat": [
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[ 1.0, 0.0, 0.0, 0.0 ],
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[ 0.0, 1.0, 0.0, 0.0 ],
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[ 0.0, 0.0, 1.0, 0.0 ],
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[ 0.0, 0.0, 0.0, 1.0 ]
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]
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}

‎lib/node_modules/@stdlib/lapack/base/dlaqr5/test/test.dlaqr5.js‎

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2025 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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/* eslint-disable max-len */
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'use strict';
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// MODULES //
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var tape = require( 'tape' );
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var Float64Array = require( '@stdlib/array/float64' );
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var dlaqr5 = require( './../lib/dlaqr5.js' );
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// FIXTURES //
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var A = require( './fixtures/a.json' );
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// TESTS //
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tape( 'main export is a function', function test( t ) {
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t.ok( true, __filename );
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t.strictEqual( typeof dlaqr5, 'function', 'main export is a function' );
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t.end();
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});
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tape( 'the function has an arity of 26', function test( t ) {
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t.strictEqual( dlaqr5.length, 26, 'returns expected value' );
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t.end();
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});
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tape( 'the function returns expected values', function test( t ) {
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var expectedH;
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var expectedZ;
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var data;
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var WH;
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var WV;
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var SR;
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var SI;
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var H;
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var Z;
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var U;
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var V;
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data = A;
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WH = new Float64Array( data.WH );
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WV = new Float64Array( data.WV );
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H = new Float64Array( data.H );
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Z = new Float64Array( data.Z );
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U = new Float64Array( data.U );
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V = new Float64Array( data.V );
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SR = new Float64Array( data.SR );
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SI = new Float64Array( data.SI );
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expectedH = new Float64Array( data.H_out );
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expectedZ = new Float64Array( data.Z_out );
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dlaqr5( data.order, data.wantT, data.wantZ, data.kacc22, data.N, data.KTOP, data.KBOT, data.nshifts, SR, SI, H, data.LDH, data.iloZ, data.ihiZ, Z, data.LDZ, V, data.LDV, U, data.LDU, data.NH, WH, data.LDWH, data.NV, WV, data.LDWV );
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t.deepEqual( H, expectedH, 'returns expected value' );
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t.deepEqual( Z, expectedZ, 'returns expected value' );
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t.end();
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});

‎lib/node_modules/@stdlib/lapack/base/dlaqr5/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) 2025 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 proxyquire = require( 'proxyquire' );
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var IS_BROWSER = require( '@stdlib/assert/is-browser' );
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var dlaqr5 = require( './../lib' );
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// VARIABLES //
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var opts = {
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'skip': IS_BROWSER
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};
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// TESTS //
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tape( 'main export is a function', function test( t ) {
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t.ok( true, __filename );
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t.strictEqual( typeof dlaqr5, 'function', 'main export is a function' );
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t.end();
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});
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tape( 'attached to the main export is a method providing an ndarray interface', function test( t ) {
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t.strictEqual( typeof dlaqr5.ndarray, 'function', 'method is a function' );
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t.end();
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});
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tape( 'if a native implementation is available, the main export is the native implementation', opts, function test( t ) {
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var dlaqr5 = proxyquire( './../lib', {
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'@stdlib/utils/try-require': tryRequire
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});
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t.strictEqual( dlaqr5, mock, 'returns expected value' );
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t.end();
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function tryRequire() {
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return mock;
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}
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function mock() {
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// Mock...
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}
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});
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tape( 'if a native implementation is not available, the main export is a JavaScript implementation', opts, function test( t ) {
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var dlaqr5;
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var main;
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main = require( './../lib/dlaqr5.js' );
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dlaqr5 = proxyquire( './../lib', {
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'@stdlib/utils/try-require': tryRequire
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});
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t.strictEqual( dlaqr5, main, 'returns expected value' );
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t.end();
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function tryRequire() {
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return new Error( 'Cannot find module' );
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}
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});

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