test: add tests for IEEE 754-2019 compliance

PR-URL: #6559
Ref: #365
Reviewed-by: Athan Reines <[email protected]>

Author: anandkaranubc

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

@@ -26,6 +26,7 @@ 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 isSameValue = require( '@stdlib/assert/is-same-value' );
 var sinpi = require( './../lib/' );
 
 
@@ -67,7 +68,22 @@ 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.equal( y, expected[ i ], 'returns '+expected[i] );
+		t.equal( isSameValue( y, expected[ i ] ), true, 'returns '+expected[ i ] );
+	}
+	t.end();
+});
+
+tape( 'the function is odd', function test( t ) {
+	var expected;
+	var x;
+	var y;
+	var i;
+
+	x = decimals.x;
+	for ( i = 0; i < x.length; i++ ) {
+		y = sinpi( -x[i] );
+		expected = -sinpi( x[i] );
+		t.equal( y, expected, 'returns '+expected );
 	}
 	t.end();
 });

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

@@ -27,6 +27,7 @@ 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 isSameValue = require( '@stdlib/assert/is-same-value' );
 var tryRequire = require( '@stdlib/utils/try-require' );
 
 
@@ -76,7 +77,22 @@ 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.equal( y, expected[ i ], 'returns '+expected[i] );
+		t.equal( isSameValue( y, expected[ i ] ), true, 'returns '+expected[ i ] );
+	}
+	t.end();
+});
+
+tape( 'the function is odd', opts, function test( t ) {
+	var expected;
+	var x;
+	var y;
+	var i;
+
+	x = decimals.x;
+	for ( i = 0; i < x.length; i++ ) {
+		y = sinpi( -x[i] );
+		expected = -sinpi( x[i] );
+		t.equal( y, expected, 'returns '+expected );
 	}
 	t.end();
 });