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feat: accessor arrays tests
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‎lib/node_modules/@stdlib/stats/base/min/lib/ndarray.js‎

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@@ -22,6 +22,8 @@
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var isnan = require( '@stdlib/math/base/assert/is-nan' );
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var isNegativeZero = require( '@stdlib/math/base/assert/is-negative-zero' );
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var arraylike2object = require( '@stdlib/array/base/arraylike2object' );
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var accessors = require( './accessors.js' );
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// MAIN //
@@ -44,12 +46,17 @@ var isNegativeZero = require( '@stdlib/math/base/assert/is-negative-zero' );
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function min( N, x, strideX, offsetX ) {
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var min;
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var ix;
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var o;
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var v;
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var i;
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if ( N <= 0 ) {
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return NaN;
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}
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o = arraylike2object( x );
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if ( o.accessorProtocol ) {
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return accessors( N, o, strideX, offsetX );
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}
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if ( N === 1 || strideX === 0 ) {
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return x[ offsetX ];
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}

‎lib/node_modules/@stdlib/stats/base/min/test/test.main.js‎

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@@ -23,6 +23,7 @@
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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 isNegativeZero = require( '@stdlib/math/base/assert/is-negative-zero' );
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var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' );
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var Float64Array = require( '@stdlib/array/float64' );
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var min = require( './../lib/main.js' );
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@@ -67,6 +68,33 @@ tape( 'the function calculates the minimum value of a strided array', function t
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t.end();
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});
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tape( 'the function calculates the minimum value of a strided array (accessors)', function test( t ) {
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var x;
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var v;
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x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ];
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v = min( x.length, toAccessorArray( x ), 1 );
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t.strictEqual( v, -4.0, 'returns expected value' );
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x = [ -4.0, -5.0 ];
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v = min( x.length, toAccessorArray( x ), 1 );
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t.strictEqual( v, -5.0, 'returns expected value' );
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x = [ 0.0, -0.0, 0.0 ];
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v = min( x.length, toAccessorArray( x ), 1 );
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t.strictEqual( isNegativeZero( v ), true, 'returns expected value' );
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x = [ NaN ];
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v = min( x.length, toAccessorArray( x ), 1 );
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t.strictEqual( isnan( v ), true, 'returns expected value' );
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x = [ NaN, NaN ];
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v = min( x.length, toAccessorArray( x ), 1 );
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t.strictEqual( isnan( v ), true, '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 `NaN`', function test( t ) {
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var x;
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var v;
@@ -115,6 +143,27 @@ tape( 'the function supports a `stride` parameter', function test( t ) {
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t.end();
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});
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tape( 'the function supports a `stride` parameter (accessors)', function test( t ) {
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var x;
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var v;
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x = [
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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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v = min( 4, toAccessorArray( x ), 2 );
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t.strictEqual( v, -2.0, '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 x;
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var v;
@@ -136,6 +185,27 @@ tape( 'the function supports a negative `stride` parameter', function test( t )
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t.end();
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});
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tape( 'the function supports a negative `stride` parameter (accessors)', function test( t ) {
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var x;
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var v;
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x = [
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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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v = min( 4, toAccessorArray( x ), -2 );
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t.strictEqual( v, -2.0, '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 first element', function test( t ) {
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var x;
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var v;

‎lib/node_modules/@stdlib/stats/base/min/test/test.ndarray.js‎

Lines changed: 91 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -23,6 +23,7 @@
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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 isNegativeZero = require( '@stdlib/math/base/assert/is-negative-zero' );
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var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' );
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var min = require( './../lib/ndarray.js' );
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@@ -66,6 +67,33 @@ tape( 'the function calculates the minimum value of a strided array', function t
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t.end();
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});
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tape( 'the function calculates the minimum value of a strided array (accessors)', function test( t ) {
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var x;
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var v;
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x = [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ];
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v = min( x.length, toAccessorArray( x ), 1, 0 );
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t.strictEqual( v, -4.0, 'returns expected value' );
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x = [ -4.0, -5.0 ];
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v = min( x.length, toAccessorArray( x ), 1, 0 );
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t.strictEqual( v, -5.0, 'returns expected value' );
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x = [ 0.0, -0.0, 0.0 ];
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v = min( x.length, toAccessorArray( x ), 1, 0 );
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t.strictEqual( isNegativeZero( v ), true, 'returns expected value' );
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x = [ NaN ];
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v = min( x.length, toAccessorArray( x ), 1, 0 );
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t.strictEqual( isnan( v ), true, 'returns expected value' );
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x = [ NaN, NaN ];
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v = min( x.length, toAccessorArray( x ), 1, 0 );
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t.strictEqual( isnan( v ), true, '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 `NaN`', function test( t ) {
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var x;
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var v;
@@ -114,6 +142,27 @@ tape( 'the function supports a `stride` parameter', function test( t ) {
114142
t.end();
115143
});
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tape( 'the function supports a `stride` parameter (accessors)', function test( t ) {
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var x;
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var v;
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x = [
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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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v = min( 4, toAccessorArray( x ), 2, 0 );
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t.strictEqual( v, -2.0, 'returns expected value' );
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t.end();
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});
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117166
tape( 'the function supports a negative `stride` parameter', function test( t ) {
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var x;
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var v;
@@ -135,6 +184,27 @@ tape( 'the function supports a negative `stride` parameter', function test( t )
135184
t.end();
136185
});
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187+
tape( 'the function supports a negative `stride` parameter (accessors)', function test( t ) {
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var x;
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var v;
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x = [
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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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v = min( 4, toAccessorArray( x ), -2, 6 );
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t.strictEqual( v, -2.0, '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 first indexed element', function test( t ) {
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var x;
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var v;
@@ -167,3 +237,24 @@ tape( 'the function supports an `offset` parameter', function test( t ) {
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168238
t.end();
169239
});
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tape( 'the function supports an `offset` parameter (accessors)', function test( t ) {
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var x;
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var v;
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x = [
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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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];
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256+
v = min( 4, toAccessorArray( x ), 2, 1 );
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t.strictEqual( v, -2.0, 'returns expected value' );
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t.end();
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});

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