dom/bindings/parser/tests/test_error_lineno.py

   1 import WebIDL
   2
   3
   4 def WebIDLTest(parser, harness):
   5     # Check that error messages put the '^' in the right place.
   6
   7     threw = False
   8     input = """\
   9 // This is a comment.
  10 interface Foo {
  11 };
  12
  13 /* This is also a comment. */
  14 interface ?"""
  15     try:
  16         parser.parse(input)
  17         parser.finish()
  18     except WebIDL.WebIDLError as e:
  19         threw = True
  20         lines = str(e).split("\n")
  21
  22         harness.check(len(lines), 3, "Expected number of lines in error message")
  23         harness.ok(
  24             lines[0].endswith("line 6:10"),
  25             'First line of error should end with "line 6:10", but was "%s".' % lines[0],
  26         )
  27         harness.check(
  28             lines[1],
  29             "interface ?",
  30             "Second line of error message is the line which caused the error.",
  31         )
  32         harness.check(
  33             lines[2],
  34             " " * (len("interface ?") - 1) + "^",
  35             "Correct column pointer in error message.",
  36         )
  37
  38     harness.ok(threw, "Should have thrown.")