Sha256: 36804ffd94fb9d25704142f14d7d9a433fa9051facfa6dada763f19b240d9e75
Contents?: true
Size: 1.13 KB
Versions: 35
Compression:
Stored size: 1.13 KB
Contents
assert('Object#instance_exec') do
class KlassWithSecret
def initialize
@secret = 99
end
end
k = KlassWithSecret.new
assert_equal 104, k.instance_exec(5) {|x| @secret+x }
end
assert('Object#tap') do
ret = []
(1..10) .tap {|x| ret << "original: #{x.inspect}"}
.to_a .tap {|x| ret << "array: #{x.inspect}"}
.select {|x| x%2==0} .tap {|x| ret << "evens: #{x.inspect}"}
.map { |x| x*x } .tap {|x| ret << "squares: #{x.inspect}"}
assert_equal [
"original: 1..10",
"array: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]",
"evens: [2, 4, 6, 8, 10]",
"squares: [4, 16, 36, 64, 100]"
], ret
assert_equal(:tap_ok, Class.new {def m; tap{return :tap_ok}; end}.new.m)
end
assert('instance_exec on primitives with class and module definition') do
begin
class A
1.instance_exec do
class B
end
end
end
assert_kind_of Class, A::B
ensure
Object.remove_const :A
end
begin
class A
1.instance_exec do
module B
end
end
end
assert_kind_of Module, A::B
ensure
Object.remove_const :A
end
end
Version data entries
35 entries across 35 versions & 2 rubygems