Closing and opening brackets - tests

strings_literal.rb

# You should have the same amount of `{` as `}`
# 2
%Q{{hi}}
# => "{hi}"

# 4
%Q{{{{42}}}}
# => "{{{42}}}"

# `{`: 2; `}`:3
# too much of `}`
%Q{{hi}}}
#SyntaxError: unexpected '}', expecting $end

# however you can escape it:
%q{\{hi}
#=> "{hi"

# or closing bracket:
%q{hi\}}
# => "hi}"

# here, I closed it prematuely:
%Q{}hi}
# SyntaxError: unexpected tIDENTIFIER, expecting $end
# %Q{}hi}
#       ^

# here, any of closing brackets doesn't close "Q's" opening bracket
%Q{{}hi{}}
# => "{}hi{}"