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[JSInterp] Improve Date processing

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* add JS_Date class implementing JS Date
* support constructor args other than date string
* support static methods of Date
* Date objects are still automatically coerced to timestamp before using in JS.
This commit is contained in:
dirkf 2025-03-07 19:32:56 +00:00
parent 974c7d7f34
commit 94849bc997
2 changed files with 97 additions and 1 deletions
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22
test/test_jsinterp.py
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@ -11,6 +11,7 @@ sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
import math
import re
import time
from youtube_dl.compat import compat_str as str
from youtube_dl.jsinterp import JS_Undefined, JSInterpreter
@ -208,6 +209,27 @@ class TestJSInterpreter(unittest.TestCase):
self._test(jsi, 86000, args=['12/31/1969 18:01:26 MDT'])
# epoch 0
self._test(jsi, 0, args=['1 January 1970 00:00:00 UTC'])
# undefined
self._test(jsi, NaN, args=[JS_Undefined])
# y,m,d, ... - may fail with older dates lacking DST data
jsi = JSInterpreter('function f() { return new Date(%s); }'
% ('2024, 5, 29, 2, 52, 12, 42',))
self._test(jsi, 1719625932042)
# no arg
self.assertAlmostEqual(JSInterpreter(
'function f() { return new Date() - 0; }').call_function('f'),
time.time() * 1000, delta=100)
# Date.now()
self.assertAlmostEqual(JSInterpreter(
'function f() { return Date.now(); }').call_function('f'),
time.time() * 1000, delta=100)
# Date.parse()
jsi = JSInterpreter('function f(dt) { return Date.parse(dt); }')
self._test(jsi, 0, args=['1 January 1970 00:00:00 UTC'])
# Date.UTC()
jsi = JSInterpreter('function f() { return Date.UTC(%s); }'
% ('1970, 0, 1, 0, 0, 0, 0',))
self._test(jsi, 0)
def test_call(self):
jsi = JSInterpreter('''