=== normalize() tests ===
INPUT:  http://example.com/public/%2e%2e/admin
OUTPUT: http://example.com/admin
---
INPUT:  http://example.com/a%2Fb
OUTPUT: http://example.com/a/b
---
INPUT:  http://example.com/a/b/%2e%2e/%2e%2e/c
OUTPUT: http://example.com/c
---
INPUT:  http://example.com/foo/%2e%2e%2fbar
OUTPUT: http://example.com/bar
---

=== equal() tests ===
equal('http://example.com/public/%2e%2e/admin', 'http://example.com/admin') => true
equal('http://example.com/a%2Fb', 'http://example.com/a/b') => true