+
+
+ function testFunc_whois_responsibility()
+ {
+ // 1st argument: Null
+ foreach($this->setup_string_null() as $key => $value){
+ $this->assertEquals('', whois_responsibility($value), $key);
+ }
+
+ // 'act.edu.au' is known as 3rd level domain
+ $this->AssertEquals('bar.act.edu.au', whois_responsibility('foo.bar.act.edu.au'));
+ $this->AssertEquals('bar.act.edu.au', whois_responsibility('bar.act.edu.au'));
+ $this->AssertEquals('act.edu.au', whois_responsibility('act.edu.au'));
+ $this->AssertEquals('edu.au', whois_responsibility('edu.au'));
+ $this->AssertEquals('au', whois_responsibility('au'));
+
+ // 'co.uk' is known as 2nd level domain
+ $this->AssertEquals('bar.co.uk', whois_responsibility('foo.bar.co.uk'));
+ $this->AssertEquals('bar.co.uk', whois_responsibility('bar.co.uk'));
+ $this->AssertEquals('co.uk', whois_responsibility('co.uk'));
+ $this->AssertEquals('uk', whois_responsibility('uk'));
+
+ // 'bar.uk' is not 2nd level (implicit responsibility)
+ $this->AssertEquals('bar.uk', whois_responsibility('foo.bar.uk'));
+ $this->AssertEquals('bar.uk', whois_responsibility('bar.uk'));
+
+ // IPv4
+ $this->AssertEquals('192.168.0.1', whois_responsibility('192.168.0.1'));
+
+ // Invalid Top-Level Domain (With implicit)
+ $this->AssertEquals('bar.local', whois_responsibility('foo.bar.local')); // Implicit responsibility
+ $this->AssertEquals('bar.local', whois_responsibility('bar.local'));
+ $this->AssertEquals('local', whois_responsibility('local'));
+ $this->AssertEquals('localhost', whois_responsibility('localhost'));
+ $this->AssertEquals('s', whois_responsibility('s'));
+ }