test: add additional edge cases

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
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    status: passed
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    status: passed
---

Author: anandkaranubc

lib/node_modules/@stdlib/string/base/format-tokenize/test/test.js

@@ -286,6 +286,16 @@ tape( 'the function tokenizes a string (extracting escaped percent sign)', funct
 	actual = formatTokenize( str );
 	t.deepEqual( actual, expected, 'deep equal' );
 
+	str = 'Testing %%%% complete';
+	expected = [
+		'Testing ',
+		'%',
+		'%',
+		' complete'
+	];
+	actual = formatTokenize( str );
+	t.deepEqual( actual, expected, 'deep equal' );
+
 	str = 'Rate: %d%% success';
 	expected = [
 		'Rate: ',
@@ -302,5 +312,22 @@ tape( 'the function tokenizes a string (extracting escaped percent sign)', funct
 	actual = formatTokenize( str );
 	t.deepEqual( actual, expected, 'deep equal' );
 
+	str = 'Testing %%%d%% complete';
+	expected = [
+		'Testing ',
+		'%',
+		{
+			'flags': '',
+			'mapping': void 0,
+			'width': void 0,
+			'precision': void 0,
+			'specifier': 'd'
+		},
+		'%',
+		' complete'
+	];
+	actual = formatTokenize( str );
+	t.deepEqual( actual, expected, 'deep equal' );
+
 	t.end();
 });