tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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test_variadic_constraints.py (1693B)

      1 import WebIDL
      2 
      3 
      4 def WebIDLTest(parser, harness):
      5    threw = False
      6    try:
      7        parser.parse(
      8            """
      9            interface VariadicConstraints1 {
     10              undefined foo(byte... arg1, byte arg2);
     11            };
     12        """
     13        )
     14        parser.finish()
     15 
     16    except WebIDL.WebIDLError:
     17        threw = True
     18 
     19    harness.ok(
     20        threw,
     21        "Should have thrown on variadic argument followed by required argument.",
     22    )
     23 
     24    parser = parser.reset()
     25    threw = False
     26    try:
     27        parser.parse(
     28            """
     29            interface VariadicConstraints2 {
     30              undefined foo(byte... arg1, optional byte arg2);
     31            };
     32        """
     33        )
     34        parser.finish()
     35    except WebIDL.WebIDLError:
     36        threw = True
     37 
     38    harness.ok(
     39        threw,
     40        "Should have thrown on variadic argument followed by optional argument.",
     41    )
     42 
     43    parser = parser.reset()
     44    threw = False
     45    try:
     46        parser.parse(
     47            """
     48            interface VariadicConstraints3 {
     49              undefined foo(optional byte... arg1);
     50            };
     51        """
     52        )
     53        parser.finish()
     54 
     55    except WebIDL.WebIDLError:
     56        threw = True
     57 
     58    harness.ok(
     59        threw,
     60        "Should have thrown on variadic argument explicitly flagged as optional.",
     61    )
     62 
     63    parser = parser.reset()
     64    threw = False
     65    try:
     66        parser.parse(
     67            """
     68            interface VariadicConstraints4 {
     69              undefined foo(byte... arg1 = 0);
     70            };
     71        """
     72        )
     73        parser.finish()
     74    except WebIDL.WebIDLError:
     75        threw = True
     76 
     77    harness.ok(threw, "Should have thrown on variadic argument with default value.")