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/*
* Some base-64 tests.
*
* Note: Duktape.dec() results are coerced from buffer to string
* with "'' + Duktape.dec(...)" because print() won't add an
* automatic newline if print() has only one argument which is
* a buffer.
*/
/*---
{
"custom": true
}
---*/
var t;
/*===
Zg==
Zm8=
Zm9v
Zm9vYg==
Zm9vYmE=
Zm9vYmFy
===*/
print(Duktape.enc('base64', ''));
print(Duktape.enc('base64', 'f'));
print(Duktape.enc('base64', 'fo'));
print(Duktape.enc('base64', 'foo'));
print(Duktape.enc('base64', 'foob'));
print(Duktape.enc('base64', 'fooba'));
print(Duktape.enc('base64', 'foobar'));
/*===
f
fo
foo
foob
fooba
foobar
===*/
print('' + Duktape.dec('base64', ''));
print('' + Duktape.dec('base64', 'Zg=='));
print('' + Duktape.dec('base64', 'Zm8='));
print('' + Duktape.dec('base64', 'Zm9v'));
print('' + Duktape.dec('base64', 'Zm9vYg=='));
print('' + Duktape.dec('base64', 'Zm9vYmE='));
print('' + Duktape.dec('base64', 'Zm9vYmFy'));
/*===
Zm9v4Yi0
102 111 111 4660
===*/
/* A string is UTF-8 encoded and then base-64 encoded. */
// U+1234 -> 0xe1 0x88 0xb4
print(Duktape.enc('base64', 'foo\u1234'));
t = '' + Duktape.dec('base64', 'Zm9v4Yi0');
print(t.charCodeAt(0), t.charCodeAt(1), t.charCodeAt(2), t.charCodeAt(3));
/*===
Zg==b28=
foo
Zm8=bw==
foo
===*/
/* The current decoder is lenient in that it allows concatenated base64
* documents to be decoded (even when there is intervening padding).
*/
t = Duktape.enc('base64', 'f') + Duktape.enc('base64', 'oo');
print(t);
print('' + Duktape.dec('base64', t));
t = Duktape.enc('base64', 'fo') + Duktape.enc('base64', 'o');
print(t);
print('' + Duktape.dec('base64', t));
/*===
f
f
fo
fo
===*/
/* The current decoder will not check that unused bits of a partial
* group are actually zero. This matches e.g. Python behavior.
*/
try {
print('' + Duktape.dec('base64', 'Zg==')); // standard
print('' + Duktape.dec('base64', 'Zh==')); // non-zero unused bits
} catch (e) {
print(e.name);
}
try {
print('' + Duktape.dec('base64', 'Zm8=')); // standard
print('' + Duktape.dec('base64', 'Zm9=')); // non-zero unused bits
} catch (e) {
print(e.name);
}
/*===
xy
TypeError
===*/
/* Base64 strings without end padding are not accepted now, although
* they could be decoded unambiguously. For instance 'xy' encodes
* into 'eHk=' which is unambiguously decodable from 'eHk'.
*/
try {
print('' + Duktape.dec('base64', 'eHk='));
} catch(e) {
print(e.name);
}
try {
print('' + Duktape.dec('base64', 'eHk'));
} catch(e) {
print(e.name);
}
/*===
Zg==
b28=
foo
===*/
/* The current decoder also allows ASCII whitespace characters */
t = Duktape.enc('base64', 'f') + '\n' + Duktape.enc('base64', 'oo') + '\n';
print(t);
print('' + Duktape.dec('base64', t));
/*===
TypeError
===*/
/* Non-base64 characters will not be accepted */
try {
print('' + Duktape.dec('base64', 'b28?'));
} catch (e) {
print(e.name);
}