import sys

sys.path.append('./fastpbkdf2')
import testdata

hashes = dict(
    sha1 = 'pbkdf2_hmac_sha1',
    sha256 = 'pbkdf2_hmac_sha256',
    sha512 = 'pbkdf2_hmac_sha512'
)

def bb(b):
    if b.isalnum():
        return 'b"%s"' % b
    else:
        return 'b"%s"' % ''.join('\\x%02x' % ord(c) for c in b)

print """// generated by gentests.py; do not edit
extern crate fastpbkdf2;
use fastpbkdf2::{pbkdf2_hmac_sha1, pbkdf2_hmac_sha256, pbkdf2_hmac_sha512};

#[cfg(test)]
fn check(a: &[u8], b: &[u8]) {
  assert_eq!(a.len(), b.len());
  
  for i in 0..a.len() {
    assert_eq!(a[i], b[i]);
  }
}
"""

for hash, tests in sorted(testdata.tests.items()):
    print '#[test]'
    print 'fn test_%s() {' % hash
    fn = hashes[hash]
    for t in tests:
        print '  {'
        print '    let mut out = [0u8; %d];' % len(t['output'])
        print '    %s(%s, %s, %d, &mut out);' % (fn, bb(t['password']), bb(t['salt']), t['iterations'])
        print '    check(&out, %s);' % bb(t['output'])
        print '  }'
    print '}'
    print