test: update test messages and use ulpdiff for comparison

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
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    status: passed
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    status: passed
---

Author: anandkaranubc

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

@@ -24,11 +24,10 @@ var tape = require( 'tape' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var PINF = require( '@stdlib/constants/float64/pinf' );
 var NINF = require( '@stdlib/constants/float64/ninf' );
-var EPS = require( '@stdlib/constants/float64/eps' );
-var abs = require( '@stdlib/math/base/special/abs' );
 var isNegativeZero = require( '@stdlib/assert/is-negative-zero' );
 var isPositiveZero = require( '@stdlib/assert/is-positive-zero' );
 var isSameValue = require( '@stdlib/assert/is-same-value' );
+var ulpdiff = require( '@stdlib/number/float64/base/ulp-difference' );
 var sinpi = require( './../lib/' );
 
 
@@ -82,7 +81,7 @@ tape( 'if provided an integer, the function returns `+-0`', function test( t ) {
 	expected = integers.expected;
 	for ( i = 0; i < x.length; i++ ) {
 		y = sinpi( x[i] );
-		t.strictEqual( isSameValue( y, expected[ i ] ), true, 'returns '+expected[ i ] );
+		t.strictEqual( isSameValue( y, expected[ i ] ), true, 'returns expected value' );
 	}
 	t.end();
 });
@@ -97,14 +96,13 @@ tape( 'the function is odd', function test( t ) {
 	for ( i = 0; i < x.length; i++ ) {
 		y = sinpi( -x[i] );
 		expected = -sinpi( x[i] );
-		t.strictEqual( y, expected, 'returns '+expected );
+		t.strictEqual( y, expected, 'returns expected value' );
 	}
 	t.end();
 });
 
 tape( 'the function computes `sin(πx)`', function test( t ) {
 	var expected;
-	var delta;
 	var x;
 	var y;
 	var i;
@@ -113,12 +111,7 @@ tape( 'the function computes `sin(πx)`', function test( t ) {
 	expected = decimals.expected;
 	for ( i = 0; i < x.length; i++ ) {
 		y = sinpi( x[i] );
-		if ( y === expected[ i ] ) {
-			t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. Expected: '+expected[i] );
-		} else {
-			delta = abs( y - expected[i] );
-			t.ok( delta <= EPS, 'within tolerance. x: '+x[i]+'. Value: '+y+'. Expected: '+expected[i]+'. Tolerance: '+EPS+'.' );
-		}
+		t.strictEqual( ulpdiff( y, expected[ i ] ) <= 1, true, 'returns expected value within 1 ulp' );
 	}
 	t.end();
 });

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

@@ -25,11 +25,10 @@ var tape = require( 'tape' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var PINF = require( '@stdlib/constants/float64/pinf' );
 var NINF = require( '@stdlib/constants/float64/ninf' );
-var EPS = require( '@stdlib/constants/float64/eps' );
-var abs = require( '@stdlib/math/base/special/abs' );
 var isNegativeZero = require( '@stdlib/assert/is-negative-zero' );
 var isPositiveZero = require( '@stdlib/assert/is-positive-zero' );
 var isSameValue = require( '@stdlib/assert/is-same-value' );
+var ulpdiff = require( '@stdlib/number/float64/base/ulp-difference' );
 var tryRequire = require( '@stdlib/utils/try-require' );
 
 
@@ -91,7 +90,7 @@ tape( 'if provided an integer, the function returns `+-0`', opts, function test(
 	expected = integers.expected;
 	for ( i = 0; i < x.length; i++ ) {
 		y = sinpi( x[i] );
-		t.strictEqual( isSameValue( y, expected[ i ] ), true, 'returns '+expected[ i ] );
+		t.strictEqual( isSameValue( y, expected[ i ] ), true, 'returns expected value' );
 	}
 	t.end();
 });
@@ -106,14 +105,13 @@ tape( 'the function is odd', opts, function test( t ) {
 	for ( i = 0; i < x.length; i++ ) {
 		y = sinpi( -x[i] );
 		expected = -sinpi( x[i] );
-		t.strictEqual( y, expected, 'returns '+expected );
+		t.strictEqual( y, expected, 'returns expected value' );
 	}
 	t.end();
 });
 
 tape( 'the function computes `sin(πx)`', opts, function test( t ) {
 	var expected;
-	var delta;
 	var x;
 	var y;
 	var i;
@@ -122,12 +120,7 @@ tape( 'the function computes `sin(πx)`', opts, function test( t ) {
 	expected = decimals.expected;
 	for ( i = 0; i < x.length; i++ ) {
 		y = sinpi( x[i] );
-		if ( y === expected[ i ] ) {
-			t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. Expected: '+expected[i] );
-		} else {
-			delta = abs( y - expected[i] );
-			t.ok( delta <= EPS, 'within tolerance. x: '+x[i]+'. Value: '+y+'. Expected: '+expected[i]+'. Tolerance: '+EPS+'.' );
-		}
+		t.strictEqual( ulpdiff( y, expected[ i ] ) <= 1, true, 'returns expected value within 1 ulp' );
 	}
 	t.end();
 });