docs: update test descriptions

Author: gunjjoshi

lib/node_modules/@stdlib/math/base/special/riemann-zeta/test/test.js

@@ -46,7 +46,7 @@ tape( 'main export is a function', function test( t ) {
 
 tape( 'if provided `NaN`, the function returns `NaN`', function test( t ) {
 	var v = zeta( NaN );
-	t.equal( isnan( v ), true, 'returns NaN when provided a NaN' );
+	t.equal( isnan( v ), true, 'returns expected value when provided a NaN' );
 	t.end();
 });
 
@@ -80,7 +80,7 @@ tape( 'the function evaluates the Riemann zeta function for very small values',
 
 tape( 'if evaluated at a pole (`s = 1`), the function returns `NaN`', function test( t ) {
 	var v = zeta( 1.0 );
-	t.equal( isnan( v ), true, 'returns NaN when provided 1' );
+	t.equal( isnan( v ), true, 'returns expected value when provided 1' );
 	t.end();
 });
 
@@ -92,10 +92,10 @@ tape( 'the function returns `1` for all input values greater or equal than `56`'
 	s = linspace( 56.0, 100.0, 200 );
 	for ( i = 0; i < s.length; i++ ) {
 		v = zeta( s[ i ] );
-		t.equal( v, 1.0, 'returns 1 when provided '+s[i] );
+		t.equal( v, 1.0, 'returns expected value when provided '+s[i] );
 	}
 	v = zeta( PINF );
-	t.equal( v, 1.0, 'returns 1 when provided +infinity' );
+	t.equal( v, 1.0, 'returns expected value when provided +infinity' );
 
 	t.end();
 });
@@ -108,11 +108,11 @@ tape( 'the function returns `0` for all even negative integers', function test(
 	s = linspace( -2.0, -200.0, 100 );
 	for ( i = 0; i < s.length; i++ ) {
 		v = zeta( s[ i ] );
-		t.equal( v, 0.0, 'returns 0 when provided '+s[i] );
+		t.equal( v, 0.0, 'returns expected value when provided '+s[i] );
 	}
 	s = -pow( 2.0, 32 ); // |s| is greater than MAX_INT32
 	v = zeta( s );
-	t.equal( v, 0.0, 'returns 0 when provided '+s );
+	t.equal( v, 0.0, 'returns expected value when provided '+s );
 	t.end();
 });
 
@@ -185,13 +185,13 @@ tape( 'the function returns `+-infinity` for large negative non-integer values',
 
 tape( 'if provided `0` (special value), the function returns `-0.5`', function test( t ) {
 	var v = zeta( 0.0 );
-	t.equal( v, -0.5, 'returns -0.5' );
+	t.equal( v, -0.5, 'returns expected value' );
 	t.end();
 });
 
 tape( 'if provided `-1` (special value), the function returns `-1/12`', function test( t ) {
 	var v = zeta( -1.0 );
-	t.equal( v, -1.0/12.0, 'returns -1/12' );
+	t.equal( v, -1.0/12.0, 'returns expected value' );
 	t.end();
 });
 

lib/node_modules/@stdlib/math/base/special/riemann-zeta/test/test.native.js

@@ -101,10 +101,10 @@ tape( 'the function returns `1` for all input values greater or equal than `56`'
 	s = linspace( 56.0, 100.0, 200 );
 	for ( i = 0; i < s.length; i++ ) {
 		v = zeta( s[ i ] );
-		t.equal( v, 1.0, 'returns 1 when provided '+s[i] );
+		t.equal( v, 1.0, 'returns expected value when provided '+s[i] );
 	}
 	v = zeta( PINF );
-	t.equal( v, 1.0, 'returns 1 when provided +infinity' );
+	t.equal( v, 1.0, 'returns expected value when provided +infinity' );
 
 	t.end();
 });
@@ -196,13 +196,13 @@ tape( 'the function returns `+-infinity` for large negative non-integer values',
 
 tape( 'if provided `0` (special value), the function returns `-0.5`', opts, function test( t ) {
 	var v = zeta( 0.0 );
-	t.equal( v, -0.5, 'returns -0.5' );
+	t.equal( v, -0.5, 'returns expected value' );
 	t.end();
 });
 
 tape( 'if provided `-1` (special value), the function returns `-1/12`', opts, function test( t ) {
 	var v = zeta( -1.0 );
-	t.equal( v, -1.0/12.0, 'returns -1/12' );
+	t.equal( v, -1.0/12.0, 'returns expected value' );
 	t.end();
 });