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test_symbol.rb
92 lines (84 loc) · 2.76 KB
/
test_symbol.rb
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require 'test/unit'
class TestSymbol < Test::Unit::TestCase
# [ruby-core:3573]
def assert_eval_inspected(sym)
n = sym.inspect
assert_nothing_raised(SyntaxError) {assert_equal(sym, eval(n))}
end
def test_inspect_invalid
# 2) Symbol#inspect sometimes returns invalid symbol representations:
assert_eval_inspected(:"!")
assert_eval_inspected(:"=")
assert_eval_inspected(:"0")
assert_eval_inspected(:"$1")
assert_eval_inspected(:"@1")
assert_eval_inspected(:"@@1")
assert_eval_inspected(:"@")
assert_eval_inspected(:"@@")
end
def assert_inspect_evaled(n)
assert_nothing_raised(SyntaxError) {assert_equal(n, eval(n).inspect)}
end
def test_inspect_suboptimal
# 3) Symbol#inspect sometimes returns suboptimal symbol representations:
assert_inspect_evaled(':foo')
assert_inspect_evaled(':foo!')
assert_inspect_evaled(':bar?')
assert_inspect_evaled(':<<')
assert_inspect_evaled(':>>')
assert_inspect_evaled(':<=')
assert_inspect_evaled(':>=')
assert_inspect_evaled(':=~')
assert_inspect_evaled(':==')
assert_inspect_evaled(':===')
assert_raise(SyntaxError) {eval ':='}
assert_inspect_evaled(':*')
assert_inspect_evaled(':**')
assert_raise(SyntaxError) {eval ':***'}
assert_inspect_evaled(':+')
assert_inspect_evaled(':-')
assert_inspect_evaled(':+@')
assert_inspect_evaled(':-@')
assert_inspect_evaled(':|')
assert_inspect_evaled(':^')
assert_inspect_evaled(':&')
assert_inspect_evaled(':/')
assert_inspect_evaled(':%')
assert_inspect_evaled(':~')
assert_inspect_evaled(':`')
assert_inspect_evaled(':[]')
assert_inspect_evaled(':[]=')
assert_raise(SyntaxError) {eval ':||'}
assert_raise(SyntaxError) {eval ':&&'}
assert_raise(SyntaxError) {eval ':['}
end
def test_inspect_dollar
# 4) :$- always treats next character literally:
sym = "$-".intern
assert_nothing_raised(SyntaxError) {assert_equal(sym, eval(':$-'))}
assert_nothing_raised(SyntaxError) {assert_equal(sym, eval(":$-\n"))}
assert_nothing_raised(SyntaxError) {assert_equal(sym, eval(":$- "))}
assert_nothing_raised(SyntaxError) {assert_equal(sym, eval(":$-#"))}
assert_raise(SyntaxError) {eval ':$-('}
end
def test_inspect_number
# 5) Inconsistency between :$0 and :$1? The first one is valid, but the
# latter isn't.
assert_inspect_evaled(':$0')
assert_inspect_evaled(':$1')
end
def test_to_proc
assert_equal %w(1 2 3), (1..3).map(&:to_s)
[
[],
[1],
[1, 2],
[1, [2, 3]],
].each do |ary|
ary_id = ary.object_id
assert_equal ary_id, :object_id.to_proc.call(ary)
ary_ids = ary.collect{|x| x.object_id }
assert_equal ary_ids, ary.collect(&:object_id)
end
end
end