test: add test to check uplo

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---

Author: aayush0325

lib/node_modules/@stdlib/lapack/base/dppequ/test/test.dppequ.js

@@ -110,6 +110,45 @@ tape( 'the function throws an error if provided a first argument which is not a
 	}
 });
 
+tape( 'the function throws an error if provided a second argument which is not a valid side', function test( t ) {
+	var values;
+	var out;
+	var AP;
+	var S;
+	var i;
+
+	values = [
+		'foo',
+		'bar',
+		'beep',
+		'boop',
+		-5,
+		NaN,
+		true,
+		false,
+		null,
+		void 0,
+		[],
+		{},
+		function noop() {}
+	];
+
+	AP = new Float64Array( [ 1.0, 2.0, 3.0, 5.0, 6.0, 9.0 ] );
+	S = new Float64Array( 3 );
+	out = new Float64Array( 2 );
+
+	for ( i = 0; i < values.length; i++ ) {
+		t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
+	}
+	t.end();
+
+	function badValue( value ) {
+		return function badValue() {
+			dppequ( 'row-major', value, 3, AP, S, out );
+		};
+	}
+});
+
 tape( 'the function leaves the row and column scaling factors intended to equilibrate a symmetric positive definite matrix `A` in packed storage unchanged if N is equal to 0', function test( t ) {
 	var expectedOut;
 	var expectedS;

lib/node_modules/@stdlib/lapack/base/dppequ/test/test.ndarray.js

@@ -110,6 +110,45 @@ tape( 'the function throws an error if provided a first argument which is not a
 	}
 });
 
+tape( 'the function throws an error if provided a second argument which is not a valid side', function test( t ) {
+	var values;
+	var out;
+	var AP;
+	var S;
+	var i;
+
+	values = [
+		'foo',
+		'bar',
+		'beep',
+		'boop',
+		-5,
+		NaN,
+		true,
+		false,
+		null,
+		void 0,
+		[],
+		{},
+		function noop() {}
+	];
+
+	AP = new Float64Array( [ 1.0, 2.0, 3.0, 5.0, 6.0, 9.0 ] );
+	S = new Float64Array( 3 );
+	out = new Float64Array( 2 );
+
+	for ( i = 0; i < values.length; i++ ) {
+		t.throws( badValue( values[ i ] ), TypeError, 'throws an error when provided ' + values[ i ] );
+	}
+	t.end();
+
+	function badValue( value ) {
+		return function badValue() {
+			dppequ( 'row-major', value, 3, AP, 1, 0, S, 1, 0, out, 1, 0 );
+		};
+	}
+});
+
 tape( 'the function leaves the row and column scaling factors intended to equilibrate a symmetric positive definite matrix `A` in packed storage unchanged if N is equal to 0', function test( t ) {
 	var expectedOut;
 	var expectedS;