test: add test case

kgryte · kgryte · commit 288c5b116486 · 2023-07-15T16:51:32.000-07:00
diff --git a/lib/node_modules/@stdlib/string/first/test/test.js b/lib/node_modules/@stdlib/string/first/test/test.js
@@ -59,6 +59,33 @@ tape( 'the function throws an error if not provided a string', function test( t
 	}
 });
 
+tape( 'the function throws an error if not provided a string (options)', function test( t ) {
+	var values;
+	var i;
+
+	values = [
+		5,
+		null,
+		true,
+		void 0,
+		NaN,
+		[],
+		{},
+		function noop() {}
+	];
+
+	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() {
+			first( value, {} );
+		};
+	}
+});
+
 tape( 'the function throws an error if provided a second argument which is not a nonnegative integer', function test( t ) {
 	var values;
 	var i;
