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test_parse.rb: for warnings

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* test/ruby/test_parse.rb (TestParse): add tests for parser warnings.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47170 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2014-08-13 12:17:57 +00:00
parent 979d413fab
commit 5129155a25
1 changed files with 14 additions and 0 deletions
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14
test/ruby/test_parse.rb
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@ -851,4 +851,18 @@ x = __ENCODING__
actual = e.backtrace.first[/\A#{Regexp.quote(__FILE__)}:(\d+):/o, 1].to_i
assert_equal(expected, actual, bug5614)
end
def test_shadowing_variable
assert_warning(/shadowing outer local variable/) {eval("a=1; tap {|a|}")}
end
def test_unused_variable
o = Object.new
assert_warning(/assigned but unused variable/) {o.instance_eval("def foo; a=1; nil; end")}
end
def test_named_capture_conflict
a = 1
assert_warning(/named capture conflict/) {eval("a = 1; /(?<a>)/ =~ ''")}
end
end