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1 | 1 | /**
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2 | 2 | * @license Apache-2.0
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3 | 3 | *
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4 |
| -* Copyright (c) 2018 The Stdlib Authors. |
| 4 | +* Copyright (c) 2023 The Stdlib Authors. |
5 | 5 | *
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6 | 6 | * Licensed under the Apache License, Version 2.0 (the "License");
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7 | 7 | * you may not use this file except in compliance with the License.
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21 | 21 | // MODULES //
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22 | 22 |
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23 | 23 | var tape = require( 'tape' );
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24 |
| -var isPositiveZero = require( '@stdlib/math-base-assert-is-positive-zero' ); |
25 |
| -var isnan = require( '@stdlib/math-base-assert-is-nan' ); |
26 |
| -var abs = require( '@stdlib/math-base-special-abs' ); |
27 |
| -var incrmaxabs = require( './../../dist' ); |
| 24 | +var main = require( './../../dist' ); |
28 | 25 |
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29 | 26 |
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30 | 27 | // TESTS //
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31 | 28 |
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32 |
| -tape( 'main export is a function', function test( t ) { |
| 29 | +tape( 'main export is defined', function test( t ) { |
33 | 30 | t.ok( true, __filename );
|
34 |
| - t.strictEqual( typeof incrmaxabs, 'function', 'main export is a function' ); |
35 |
| - t.end(); |
36 |
| -}); |
37 |
| - |
38 |
| -tape( 'the function returns an accumulator function', function test( t ) { |
39 |
| - t.equal( typeof incrmaxabs(), 'function', 'returns a function' ); |
40 |
| - t.end(); |
41 |
| -}); |
42 |
| - |
43 |
| -tape( 'if not provided any values, the initial returned maximum absolute value is `null`', function test( t ) { |
44 |
| - var acc = incrmaxabs(); |
45 |
| - t.equal( acc(), null, 'returns null' ); |
46 |
| - t.end(); |
47 |
| -}); |
48 |
| - |
49 |
| -tape( 'the accumulator function incrementally computes a maximum absolute value', function test( t ) { |
50 |
| - var expected; |
51 |
| - var actual; |
52 |
| - var data; |
53 |
| - var acc; |
54 |
| - var max; |
55 |
| - var ad; |
56 |
| - var N; |
57 |
| - var d; |
58 |
| - var i; |
59 |
| - |
60 |
| - data = [ 2.0, -3.0, 2.0, -4.0, 3.0, 4.0 ]; |
61 |
| - N = data.length; |
62 |
| - |
63 |
| - expected = new Array( N ); |
64 |
| - actual = new Array( N ); |
65 |
| - |
66 |
| - acc = incrmaxabs(); |
67 |
| - |
68 |
| - max = data[ 0 ]; |
69 |
| - for ( i = 0; i < N; i++ ) { |
70 |
| - d = data[ i ]; |
71 |
| - ad = abs( d ); |
72 |
| - if ( ad > max ) { |
73 |
| - max = ad; |
74 |
| - } |
75 |
| - expected[ i ] = max; |
76 |
| - actual[ i ] = acc( d ); |
77 |
| - } |
78 |
| - t.deepEqual( actual, expected, 'returns expected incremental results' ); |
79 |
| - t.end(); |
80 |
| -}); |
81 |
| - |
82 |
| -tape( 'if not provided an input value, the accumulator function returns the current maximum absolute value', function test( t ) { |
83 |
| - var data; |
84 |
| - var acc; |
85 |
| - var i; |
86 |
| - |
87 |
| - data = [ 2.0, -3.0, 1.0 ]; |
88 |
| - acc = incrmaxabs(); |
89 |
| - for ( i = 0; i < data.length; i++ ) { |
90 |
| - acc( data[ i ] ); |
91 |
| - } |
92 |
| - t.equal( acc(), 3.0, 'returns expected value' ); |
93 |
| - t.end(); |
94 |
| -}); |
95 |
| - |
96 |
| -tape( 'the accumulator function correctly handles signed zeros', function test( t ) { |
97 |
| - var acc; |
98 |
| - var v; |
99 |
| - |
100 |
| - acc = incrmaxabs(); |
101 |
| - |
102 |
| - v = acc( -0.0 ); |
103 |
| - t.equal( isPositiveZero( v ), true, 'returns expected value' ); |
104 |
| - |
105 |
| - v = acc( 0.0 ); |
106 |
| - t.equal( isPositiveZero( v ), true, 'returns expected value' ); |
107 |
| - |
108 |
| - v = acc( -0.0 ); |
109 |
| - t.equal( isPositiveZero( v ), true, 'returns expected value' ); |
110 |
| - |
111 |
| - t.end(); |
112 |
| -}); |
113 |
| - |
114 |
| -tape( 'if provided a `NaN`, the accumulator function returns `NaN` for all future invocations', function test( t ) { |
115 |
| - var data; |
116 |
| - var acc; |
117 |
| - var i; |
118 |
| - |
119 |
| - data = [ 2.0, NaN, 1.0, -2.0, 3.0, -4.0, 5.0, -6.0, 7.0 ]; |
120 |
| - acc = incrmaxabs(); |
121 |
| - for ( i = 0; i < data.length; i++ ) { |
122 |
| - acc( data[ i ] ); |
123 |
| - } |
124 |
| - t.equal( isnan( acc() ), true, 'returns expected value' ); |
| 31 | + t.strictEqual( main !== void 0, true, 'main export is defined' ); |
125 | 32 | t.end();
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126 | 33 | });
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