test(math/base/special/powm1): migrate relative tolerance check to ULP

Author: ujjwalv01

lib/node_modules/@stdlib/math/base/special/powm1/test/test.js

@@ -21,12 +21,11 @@
 // MODULES //
 
 var tape = require( 'tape' );
+var isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
-var randu = require( '@stdlib/random/base/randu' );
-var abs = require( '@stdlib/math/base/special/abs' );
 var expm1 = require( '@stdlib/math/base/special/expm1' );
 var ln = require( '@stdlib/math/base/special/ln' );
-var EPS = require( '@stdlib/constants/float64/eps' );
+var randu = require( '@stdlib/random/base/randu' );
 var powm1 = require( './../lib' );
 
 
@@ -72,8 +71,6 @@ tape( 'if provided a base equal to `0`, the function returns `-1` (except when t
 
 tape( 'the function evaluates `bˣ - 1` (tested against Boost)', function test( t ) {
 	var expected;
-	var delta;
-	var tol;
 	var b;
 	var x;
 	var y;
@@ -85,9 +82,11 @@ tape( 'the function evaluates `bˣ - 1` (tested against Boost)', function test(
 
 	for ( i = 0; i < b.length; i++ ) {
 		y = powm1( b[ i ], x[ i ] );
-		delta = abs( y - expected[ i ] );
-		tol = 2.0 * EPS * abs( expected[ i ] );
-		t.ok( delta <= tol, 'within tolerance. b: ' + b[ i ] + 'x: ' + x[ i ] + '. actual: ' + y + '. E: ' + expected[ i ] + '. tol: ' + tol + '. Δ: ' + delta + '.' );
+		if ( y === expected[ i ] ) {
+			t.strictEqual( y, expected[ i ], 'returns '+expected[ i ]+' when provided b: '+b[ i ]+', x: '+x[ i ] );
+		} else {
+			t.strictEqual( isAlmostSameValue( y, expected[ i ], 2 ), true, 'returns expected value. b: '+b[ i ]+', x: '+x[ i ] );
+		}
 	}
 	t.end();
 });

lib/node_modules/@stdlib/math/base/special/powm1/test/test.native.js

@@ -22,12 +22,11 @@
 
 var resolve = require( 'path' ).resolve;
 var tape = require( 'tape' );
+var isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
-var randu = require( '@stdlib/random/base/randu' );
-var abs = require( '@stdlib/math/base/special/abs' );
 var expm1 = require( '@stdlib/math/base/special/expm1' );
 var ln = require( '@stdlib/math/base/special/ln' );
-var EPS = require( '@stdlib/constants/float64/eps' );
+var randu = require( '@stdlib/random/base/randu' );
 var tryRequire = require( '@stdlib/utils/try-require' );
 
 
@@ -81,8 +80,6 @@ tape( 'if provided a base equal to `0`, the function returns `-1` (except when t
 
 tape( 'the function evaluates `bˣ - 1` (tested against Boost)', opts, function test( t ) {
 	var expected;
-	var delta;
-	var tol;
 	var b;
 	var x;
 	var y;
@@ -94,9 +91,11 @@ tape( 'the function evaluates `bˣ - 1` (tested against Boost)', opts, function
 
 	for ( i = 0; i < b.length; i++ ) {
 		y = powm1( b[ i ], x[ i ] );
-		delta = abs( y - expected[ i ] );
-		tol = 2.0 * EPS * abs( expected[ i ] );
-		t.ok( delta <= tol, 'within tolerance. b: ' + b[ i ] + 'x: ' + x[ i ] + '. actual: ' + y + '. E: ' + expected[ i ] + '. tol: ' + tol + '. Δ: ' + delta + '.' );
+		if ( y === expected[ i ] ) {
+			t.strictEqual( y, expected[ i ], 'returns '+expected[ i ]+' when provided b: '+b[ i ]+', x: '+x[ i ] );
+		} else {
+			t.strictEqual( isAlmostSameValue( y, expected[ i ], 2 ), true, 'returns expected value. b: '+b[ i ]+', x: '+x[ i ] );
+		}
 	}
 	t.end();
 });