bench: refactor random number generation in number/int32/base/mul

PR-URL: #11494
Reviewed-by: Athan Reines <kgryte@gmail.com>

Author: impawstarlight

lib/node_modules/@stdlib/number/int32/base/mul/benchmark/benchmark.js

@@ -21,8 +21,8 @@
 // MODULES //
 
 var bench = require( '@stdlib/bench' );
-var minstd = require( '@stdlib/random/base/minstd' );
-var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 var imul = require( './../lib' );
 var polyfill = require( './../lib/polyfill.js' );
@@ -35,59 +35,68 @@ bench( pkg, function benchmark( b ) {
 	var y;
 	var i;
 
+	x = discreteUniform( 100, 0, 10, {
+		'dtype': 'int32'
+	});
+
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
-		x = minstd();
-		y = imul( x|0, x|0 );
-		if ( isnan( y ) ) {
-			b.fail( 'should not return NaN' );
+		y = imul( x[ i%x.length ], 10 );
+		if ( y > 100 ) {
+			b.fail( 'unexpected result' );
 		}
 	}
 	b.toc();
-	if ( isnan( y ) ) {
-		b.fail( 'should not return NaN' );
+	if ( y > 100 ) {
+		b.fail( 'unexpected result' );
 	}
 	b.pass( 'benchmark finished' );
 	b.end();
 });
 
-bench( pkg+'::polyfill', function benchmark( b ) {
+bench( format( '%s::polyfill', pkg ), function benchmark( b ) {
 	var x;
 	var y;
 	var i;
 
+	x = discreteUniform( 100, 0, 10, {
+		'dtype': 'int32'
+	});
+
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
-		x = minstd();
-		y = polyfill( x|0, x|0 );
-		if ( isnan( y ) ) {
-			b.fail( 'should not return NaN' );
+		y = polyfill( x[ i%x.length ], 10 );
+		if ( y > 100 ) {
+			b.fail( 'unexpected result' );
 		}
 	}
 	b.toc();
-	if ( isnan( y ) ) {
-		b.fail( 'should not return NaN' );
+	if ( y > 100 ) {
+		b.fail( 'unexpected result' );
 	}
 	b.pass( 'benchmark finished' );
 	b.end();
 });
 
-bench( pkg+'::naive_multiplication', function benchmark( b ) {
+bench( format( '%s::inline', pkg ), function benchmark( b ) {
 	var x;
 	var y;
 	var i;
 
+	x = discreteUniform( 100, 0, 10, {
+		'dtype': 'int32'
+	});
+
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
-		x = minstd();
-		y = ( x|0 ) * ( x|0 );
-		if ( isnan( y ) ) {
-			b.fail( 'should not return NaN' );
+		y = ( ( x[ i%x.length ] ) * 5 ) | 0;
+		if ( y > 100 ) {
+			b.fail( 'unexpected result' );
 		}
 	}
 	b.toc();
-	if ( isnan( y ) ) {
-		b.fail( 'should not return NaN' );
+	if ( y > 100 ) {
+		b.fail( 'unexpected result' );
 	}
 	b.pass( 'benchmark finished' );
 	b.end();