test: add tests for IEEE 754-2019 compliance

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

@@ -26,6 +26,7 @@ var abs = require( '@stdlib/math/base/special/abs' );
 var PINF = require( '@stdlib/constants/float64/pinf' );
 var NINF = require( '@stdlib/constants/float64/ninf' );
 var EPS = require( '@stdlib/constants/float64/eps' );
+var isPositiveZero = require( '@stdlib/assert/is-positive-zero' );
 var exp = require( './../lib' );
 
 
@@ -148,19 +149,19 @@ tape( 'the function accurately computes the natural exponential function for ver
 
 tape( 'the function returns `0` if provided a `-infinity`', function test( t ) {
 	var val = exp( NINF );
-	t.equal( val, 0.0, 'returns 0' );
+	t.equal( isPositiveZero( val ), true, 'returns expected value' );
 	t.end();
 });
 
 tape( 'the function returns `+infinity` if provided a `+infinity`', function test( t ) {
 	var val = exp( PINF );
-	t.equal( val, PINF, 'returns +infinity' );
+	t.equal( val, PINF, 'returns expected value' );
 	t.end();
 });
 
 tape( 'the function returns `NaN` if provided a `NaN`', function test( t ) {
 	var val = exp( NaN );
-	t.equal( isnan( val ), true, 'returns NaN' );
+	t.equal( isnan( val ), true, 'returns expected value' );
 	t.end();
 });
 

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

@@ -26,6 +26,7 @@ var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var abs = require( '@stdlib/math/base/special/abs' );
 var PINF = require( '@stdlib/constants/float64/pinf' );
 var NINF = require( '@stdlib/constants/float64/ninf' );
+var isPositiveZero = require( '@stdlib/assert/is-positive-zero' );
 var tryRequire = require( '@stdlib/utils/try-require' );
 var EPS = require( '@stdlib/constants/float64/eps' );
 
@@ -157,19 +158,19 @@ tape( 'the function accurately computes the natural exponential function for ver
 
 tape( 'the function returns `0` if provided a `-infinity`', opts, function test( t ) {
 	var val = exp( NINF );
-	t.equal( val, 0.0, 'returns 0' );
+	t.equal( isPositiveZero( val ), true, 'returns expected value' );
 	t.end();
 });
 
 tape( 'the function returns `+infinity` if provided a `+infinity`', opts, function test( t ) {
 	var val = exp( PINF );
-	t.equal( val, PINF, 'returns +infinity' );
+	t.equal( val, PINF, 'returns expected value' );
 	t.end();
 });
 
 tape( 'the function returns `NaN` if provided a `NaN`', opts, function test( t ) {
 	var val = exp( NaN );
-	t.equal( isnan( val ), true, 'returns NaN' );
+	t.equal( isnan( val ), true, 'returns expected value' );
 	t.end();
 });
 

lib/node_modules/@stdlib/math/base/special/exp10/test/test.js

@@ -26,6 +26,7 @@ var abs = require( '@stdlib/math/base/special/abs' );
 var PINF = require( '@stdlib/constants/float64/pinf' );
 var NINF = require( '@stdlib/constants/float64/ninf' );
 var EPS = require( '@stdlib/constants/float64/eps' );
+var isPositiveZero = require( '@stdlib/assert/is-positive-zero' );
 var exp10 = require( './../lib' );
 
 
@@ -161,7 +162,8 @@ tape( 'the function returns `0.0` for negative large `x`', function test( t ) {
 });
 
 tape( 'the function returns `0.0` if provided `-infinity`', function test( t ) {
-	t.equal( exp10( NINF ), 0.0, 'equals 0' );
+	var val = exp10( NINF );
+	t.equal( isPositiveZero( val ), true, 'returns expected value' );
 	t.end();
 });
 

lib/node_modules/@stdlib/math/base/special/exp10/test/test.native.js

@@ -27,6 +27,7 @@ var abs = require( '@stdlib/math/base/special/abs' );
 var PINF = require( '@stdlib/constants/float64/pinf' );
 var NINF = require( '@stdlib/constants/float64/ninf' );
 var EPS = require( '@stdlib/constants/float64/eps' );
+var isPositiveZero = require( '@stdlib/assert/is-positive-zero' );
 var tryRequire = require( '@stdlib/utils/try-require' );
 
 
@@ -170,7 +171,8 @@ tape( 'the function returns `0.0` for negative large `x`', opts, function test(
 });
 
 tape( 'the function returns `0.0` if provided `-infinity`', opts, function test( t ) {
-	t.equal( exp10( NINF ), 0.0, 'equals 0' );
+	var val = exp10( NINF );
+	t.equal( isPositiveZero( val ), true, 'returns expected value' );
 	t.end();
 });
 

lib/node_modules/@stdlib/math/base/special/exp2/test/test.js

@@ -26,6 +26,7 @@ var abs = require( '@stdlib/math/base/special/abs' );
 var PINF = require( '@stdlib/constants/float64/pinf' );
 var NINF = require( '@stdlib/constants/float64/ninf' );
 var EPS = require( '@stdlib/constants/float64/eps' );
+var isPositiveZero = require( '@stdlib/assert/is-positive-zero' );
 var exp2 = require( './../lib' );
 
 
@@ -161,7 +162,8 @@ tape( 'the function returns `0.0` for negative large `x`', function test( t ) {
 });
 
 tape( 'the function returns `0.0` if provided `-infinity`', function test( t ) {
-	t.equal( exp2( NINF ), 0.0, 'equals 0' );
+	var val = exp2( NINF );
+	t.equal( isPositiveZero( val ), true, 'returns expected value' );
 	t.end();
 });
 

lib/node_modules/@stdlib/math/base/special/exp2/test/test.native.js

@@ -27,6 +27,7 @@ var abs = require( '@stdlib/math/base/special/abs' );
 var PINF = require( '@stdlib/constants/float64/pinf' );
 var NINF = require( '@stdlib/constants/float64/ninf' );
 var EPS = require( '@stdlib/constants/float64/eps' );
+var isPositiveZero = require( '@stdlib/assert/is-positive-zero' );
 var tryRequire = require( '@stdlib/utils/try-require' );
 
 
@@ -170,7 +171,8 @@ tape( 'the function returns `0.0` for negative large `x`', opts, function test(
 });
 
 tape( 'the function returns `0.0` if provided `-infinity`', opts, function test( t ) {
-	t.equal( exp2( NINF ), 0.0, 'equals 0' );
+	var val = exp2( NINF );
+	t.equal( isPositiveZero( val ), true, 'returns expected value' );
 	t.end();
 });