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aaf5d9c03c
* test/ruby/test_*.rb: split sample/test.rb into 28 test/unit testcases. some tests could not be translates... search '!!' mark to see it. * test/csv/test_csv.rb: should require 'csv', not '../lib/csv'. test runner should set load path correctly. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4498 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
469 lines
18 KiB
Ruby
469 lines
18 KiB
Ruby
require 'test/unit'
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$KCODE = 'none'
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class TestAssignment < Test::Unit::TestCase
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def test_assign
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a=[]; a[0] ||= "bar";
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assert(a[0] == "bar")
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h={}; h["foo"] ||= "bar";
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assert(h["foo"] == "bar")
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aa = 5
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aa ||= 25
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assert(aa == 5)
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bb ||= 25
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assert(bb == 25)
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cc &&=33
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assert(cc == nil)
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cc = 5
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cc &&=44
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assert(cc == 44)
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a = nil; assert(a == nil)
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a = 1; assert(a == 1)
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a = []; assert(a == [])
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a = [1]; assert(a == [1])
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a = [nil]; assert(a == [nil])
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a = [[]]; assert(a == [[]])
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a = [1,2]; assert(a == [1,2])
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a = [*[]]; assert(a == [])
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a = [*[1]]; assert(a == [1])
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a = [*[1,2]]; assert(a == [1,2])
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a = *nil; assert(a == nil)
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a = *1; assert(a == 1)
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a = *[]; assert(a == nil)
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a = *[1]; assert(a == 1)
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a = *[nil]; assert(a == nil)
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a = *[[]]; assert(a == [])
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a = *[1,2]; assert(a == [1,2])
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a = *[*[]]; assert(a == nil)
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a = *[*[1]]; assert(a == 1)
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a = *[*[1,2]]; assert(a == [1,2])
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*a = nil; assert(a == [nil])
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*a = 1; assert(a == [1])
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*a = []; assert(a == [[]])
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*a = [1]; assert(a == [[1]])
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*a = [nil]; assert(a == [[nil]])
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*a = [[]]; assert(a == [[[]]])
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*a = [1,2]; assert(a == [[1,2]])
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*a = [*[]]; assert(a == [[]])
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*a = [*[1]]; assert(a == [[1]])
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*a = [*[1,2]]; assert(a == [[1,2]])
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*a = *nil; assert(a == [nil])
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*a = *1; assert(a == [1])
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*a = *[]; assert(a == [])
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*a = *[1]; assert(a == [1])
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*a = *[nil]; assert(a == [nil])
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*a = *[[]]; assert(a == [[]])
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*a = *[1,2]; assert(a == [1,2])
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*a = *[*[]]; assert(a == [])
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*a = *[*[1]]; assert(a == [1])
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*a = *[*[1,2]]; assert(a == [1,2])
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a,b,*c = nil; assert([a,b,c] == [nil,nil,[]])
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a,b,*c = 1; assert([a,b,c] == [1,nil,[]])
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a,b,*c = []; assert([a,b,c] == [nil,nil,[]])
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a,b,*c = [1]; assert([a,b,c] == [1,nil,[]])
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a,b,*c = [nil]; assert([a,b,c] == [nil,nil,[]])
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a,b,*c = [[]]; assert([a,b,c] == [[],nil,[]])
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a,b,*c = [1,2]; assert([a,b,c] == [1,2,[]])
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a,b,*c = [*[]]; assert([a,b,c] == [nil,nil,[]])
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a,b,*c = [*[1]]; assert([a,b,c] == [1,nil,[]])
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a,b,*c = [*[1,2]]; assert([a,b,c] == [1,2,[]])
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a,b,*c = *nil; assert([a,b,c] == [nil,nil,[]])
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a,b,*c = *1; assert([a,b,c] == [1,nil,[]])
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a,b,*c = *[]; assert([a,b,c] == [nil,nil,[]])
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a,b,*c = *[1]; assert([a,b,c] == [1,nil,[]])
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a,b,*c = *[nil]; assert([a,b,c] == [nil,nil,[]])
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a,b,*c = *[[]]; assert([a,b,c] == [[],nil,[]])
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a,b,*c = *[1,2]; assert([a,b,c] == [1,2,[]])
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a,b,*c = *[*[]]; assert([a,b,c] == [nil,nil,[]])
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a,b,*c = *[*[1]]; assert([a,b,c] == [1,nil,[]])
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a,b,*c = *[*[1,2]]; assert([a,b,c] == [1,2,[]])
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end
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def test_yield
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def f; yield nil; end; f {|a| assert(a == nil)}
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def f; yield 1; end; f {|a| assert(a == 1)}
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def f; yield []; end; f {|a| assert(a == [])}
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def f; yield [1]; end; f {|a| assert(a == [1])}
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def f; yield [nil]; end; f {|a| assert(a == [nil])}
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def f; yield [[]]; end; f {|a| assert(a == [[]])}
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def f; yield [*[]]; end; f {|a| assert(a == [])}
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def f; yield [*[1]]; end; f {|a| assert(a == [1])}
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def f; yield [*[1,2]]; end; f {|a| assert(a == [1,2])}
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def f; yield *nil; end; f {|a| assert(a == nil)}
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def f; yield *1; end; f {|a| assert(a == 1)}
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def f; yield *[1]; end; f {|a| assert(a == 1)}
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def f; yield *[nil]; end; f {|a| assert(a == nil)}
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def f; yield *[[]]; end; f {|a| assert(a == [])}
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def f; yield *[*[1]]; end; f {|a| assert(a == 1)}
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def f; yield; end; f {|*a| assert(a == [])}
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def f; yield nil; end; f {|*a| assert(a == [nil])}
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def f; yield 1; end; f {|*a| assert(a == [1])}
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def f; yield []; end; f {|*a| assert(a == [[]])}
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def f; yield [1]; end; f {|*a| assert(a == [[1]])}
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def f; yield [nil]; end; f {|*a| assert(a == [[nil]])}
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def f; yield [[]]; end; f {|*a| assert(a == [[[]]])}
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def f; yield [1,2]; end; f {|*a| assert(a == [[1,2]])}
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def f; yield [*[]]; end; f {|*a| assert(a == [[]])}
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def f; yield [*[1]]; end; f {|*a| assert(a == [[1]])}
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def f; yield [*[1,2]]; end; f {|*a| assert(a == [[1,2]])}
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def f; yield *nil; end; f {|*a| assert(a == [nil])}
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def f; yield *1; end; f {|*a| assert(a == [1])}
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def f; yield *[]; end; f {|*a| assert(a == [])}
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def f; yield *[1]; end; f {|*a| assert(a == [1])}
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def f; yield *[nil]; end; f {|*a| assert(a == [nil])}
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def f; yield *[[]]; end; f {|*a| assert(a == [[]])}
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def f; yield *[*[]]; end; f {|*a| assert(a == [])}
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def f; yield *[*[1]]; end; f {|*a| assert(a == [1])}
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def f; yield *[*[1,2]]; end; f {|*a| assert(a == [1,2])}
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def f; yield; end; f {|a,b,*c| assert([a,b,c] == [nil,nil,[]])}
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def f; yield nil; end; f {|a,b,*c| assert([a,b,c] == [nil,nil,[]])}
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def f; yield 1; end; f {|a,b,*c| assert([a,b,c] == [1,nil,[]])}
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def f; yield []; end; f {|a,b,*c| assert([a,b,c] == [nil,nil,[]])}
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def f; yield [1]; end; f {|a,b,*c| assert([a,b,c] == [1,nil,[]])}
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def f; yield [nil]; end; f {|a,b,*c| assert([a,b,c] == [nil,nil,[]])}
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def f; yield [[]]; end; f {|a,b,*c| assert([a,b,c] == [[],nil,[]])}
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def f; yield [*[]]; end; f {|a,b,*c| assert([a,b,c] == [nil,nil,[]])}
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def f; yield [*[1]]; end; f {|a,b,*c| assert([a,b,c] == [1,nil,[]])}
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def f; yield [*[1,2]]; end; f {|a,b,*c| assert([a,b,c] == [1,2,[]])}
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def f; yield *nil; end; f {|a,b,*c| assert([a,b,c] == [nil,nil,[]])}
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def f; yield *1; end; f {|a,b,*c| assert([a,b,c] == [1,nil,[]])}
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def f; yield *[]; end; f {|a,b,*c| assert([a,b,c] == [nil,nil,[]])}
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def f; yield *[1]; end; f {|a,b,*c| assert([a,b,c] == [1,nil,[]])}
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def f; yield *[nil]; end; f {|a,b,*c| assert([a,b,c] == [nil,nil,[]])}
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def f; yield *[[]]; end; f {|a,b,*c| assert([a,b,c] == [[],nil,[]])}
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def f; yield *[*[]]; end; f {|a,b,*c| assert([a,b,c] == [nil,nil,[]])}
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def f; yield *[*[1]]; end; f {|a,b,*c| assert([a,b,c] == [1,nil,[]])}
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def f; yield *[*[1,2]]; end; f {|a,b,*c| assert([a,b,c] == [1,2,[]])}
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end
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def test_return
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def r; return; end; a = r(); assert(a == nil)
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def r; return nil; end; a = r(); assert(a == nil)
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def r; return 1; end; a = r(); assert(a == 1)
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def r; return []; end; a = r(); assert(a == [])
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def r; return [1]; end; a = r(); assert(a == [1])
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def r; return [nil]; end; a = r(); assert(a == [nil])
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def r; return [[]]; end; a = r(); assert(a == [[]])
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def r; return [*[]]; end; a = r(); assert(a == [])
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def r; return [*[1]]; end; a = r(); assert(a == [1])
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def r; return [*[1,2]]; end; a = r(); assert(a == [1,2])
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def r; return *nil; end; a = r(); assert(a == nil)
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def r; return *1; end; a = r(); assert(a == 1)
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def r; return *[]; end; a = r(); assert(a == nil)
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def r; return *[1]; end; a = r(); assert(a == 1)
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def r; return *[nil]; end; a = r(); assert(a == nil)
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def r; return *[[]]; end; a = r(); assert(a == [])
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def r; return *[*[]]; end; a = r(); assert(a == nil)
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def r; return *[*[1]]; end; a = r(); assert(a == 1)
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def r; return *[*[1,2]]; end; a = r(); assert(a == [1,2])
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def r; return *nil; end; a = *r(); assert(a == nil)
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def r; return *1; end; a = *r(); assert(a == 1)
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def r; return *[]; end; a = *r(); assert(a == nil)
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def r; return *[1]; end; a = *r(); assert(a == 1)
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def r; return *[nil]; end; a = *r(); assert(a == nil)
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def r; return *[[]]; end; a = *r(); assert(a == nil)
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def r; return *[*[]]; end; a = *r(); assert(a == nil)
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def r; return *[*[1]]; end; a = *r(); assert(a == 1)
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def r; return *[*[1,2]]; end; a = *r(); assert(a == [1,2])
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def r; return; end; *a = r(); assert(a == [nil])
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def r; return nil; end; *a = r(); assert(a == [nil])
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def r; return 1; end; *a = r(); assert(a == [1])
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def r; return []; end; *a = r(); assert(a == [[]])
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def r; return [1]; end; *a = r(); assert(a == [[1]])
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def r; return [nil]; end; *a = r(); assert(a == [[nil]])
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def r; return [[]]; end; *a = r(); assert(a == [[[]]])
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def r; return [1,2]; end; *a = r(); assert(a == [[1,2]])
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def r; return [*[]]; end; *a = r(); assert(a == [[]])
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def r; return [*[1]]; end; *a = r(); assert(a == [[1]])
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def r; return [*[1,2]]; end; *a = r(); assert(a == [[1,2]])
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def r; return *nil; end; *a = r(); assert(a == [nil])
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def r; return *1; end; *a = r(); assert(a == [1])
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def r; return *[]; end; *a = r(); assert(a == [nil])
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def r; return *[1]; end; *a = r(); assert(a == [1])
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def r; return *[nil]; end; *a = r(); assert(a == [nil])
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def r; return *[[]]; end; *a = r(); assert(a == [[]])
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def r; return *[1,2]; end; *a = r(); assert(a == [[1,2]])
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def r; return *[*[]]; end; *a = r(); assert(a == [nil])
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def r; return *[*[1]]; end; *a = r(); assert(a == [1])
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def r; return *[*[1,2]]; end; *a = r(); assert(a == [[1,2]])
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def r; return *nil; end; *a = *r(); assert(a == [nil])
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def r; return *1; end; *a = *r(); assert(a == [1])
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def r; return *[]; end; *a = *r(); assert(a == [nil])
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def r; return *[1]; end; *a = *r(); assert(a == [1])
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def r; return *[nil]; end; *a = *r(); assert(a == [nil])
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def r; return *[[]]; end; *a = *r(); assert(a == [])
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def r; return *[1,2]; end; *a = *r(); assert(a == [1,2])
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def r; return *[*[]]; end; *a = *r(); assert(a == [nil])
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def r; return *[*[1]]; end; *a = *r(); assert(a == [1])
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def r; return *[*[1,2]]; end; *a = *r(); assert(a == [1,2])
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def r; return; end; a,b,*c = r(); assert([a,b,c] == [nil,nil,[]])
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def r; return nil; end; a,b,*c = r(); assert([a,b,c] == [nil,nil,[]])
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def r; return 1; end; a,b,*c = r(); assert([a,b,c] == [1,nil,[]])
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def r; return []; end; a,b,*c = r(); assert([a,b,c] == [nil,nil,[]])
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def r; return [1]; end; a,b,*c = r(); assert([a,b,c] == [1,nil,[]])
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def r; return [nil]; end; a,b,*c = r(); assert([a,b,c] == [nil,nil,[]])
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def r; return [[]]; end; a,b,*c = r(); assert([a,b,c] == [[],nil,[]])
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def r; return [1,2]; end; a,b,*c = r(); assert([a,b,c] == [1,2,[]])
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def r; return [*[]]; end; a,b,*c = r(); assert([a,b,c] == [nil,nil,[]])
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def r; return [*[1]]; end; a,b,*c = r(); assert([a,b,c] == [1,nil,[]])
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def r; return [*[1,2]]; end; a,b,*c = r(); assert([a,b,c] == [1,2,[]])
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def r; return *nil; end; a,b,*c = r(); assert([a,b,c] == [nil,nil,[]])
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def r; return *1; end; a,b,*c = r(); assert([a,b,c] == [1,nil,[]])
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def r; return *[]; end; a,b,*c = r(); assert([a,b,c] == [nil,nil,[]])
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def r; return *[1]; end; a,b,*c = r(); assert([a,b,c] == [1,nil,[]])
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def r; return *[nil]; end; a,b,*c = r(); assert([a,b,c] == [nil,nil,[]])
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def r; return *[[]]; end; a,b,*c = r(); assert([a,b,c] == [nil,nil,[]])
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def r; return *[1,2]; end; a,b,*c = r(); assert([a,b,c] == [1,2,[]])
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def r; return *[*[]]; end; a,b,*c = r(); assert([a,b,c] == [nil,nil,[]])
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def r; return *[*[1]]; end; a,b,*c = r(); assert([a,b,c] == [1,nil,[]])
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def r; return *[*[1,2]]; end; a,b,*c = r(); assert([a,b,c] == [1,2,[]])
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end
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def test_lambda
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f = lambda {|r,| assert([] == r)}
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f.call([], *[])
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f = lambda {|r,*l| assert([] == r); assert([1] == l)}
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f.call([], *[1])
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f = lambda{|x| x}
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assert(f.call(42) == 42)
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assert(f.call([42]) == [42])
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assert(f.call([[42]]) == [[42]])
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assert(f.call([42,55]) == [42,55])
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f = lambda{|x,| x}
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assert(f.call(42) == 42)
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assert(f.call([42]) == [42])
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assert(f.call([[42]]) == [[42]])
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assert(f.call([42,55]) == [42,55])
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f = lambda{|*x| x}
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assert(f.call(42) == [42])
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assert(f.call([42]) == [[42]])
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assert(f.call([[42]]) == [[[42]]])
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assert(f.call([42,55]) == [[42,55]])
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assert(f.call(42,55) == [42,55])
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end
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def test_multi
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a,=*[1]
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assert(a == 1)
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a,=*[[1]]
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assert(a == [1])
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a,=*[[[1]]]
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assert(a == [[1]])
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x, (y, z) = 1, 2, 3
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assert([1,2,nil] == [x,y,z])
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x, (y, z) = 1, [2,3]
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assert([1,2,3] == [x,y,z])
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x, (y, z) = 1, [2]
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assert([1,2,nil] == [x,y,z])
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end
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def test_break
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a = loop do break; end; assert(a == nil)
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a = loop do break nil; end; assert(a == nil)
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a = loop do break 1; end; assert(a == 1)
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a = loop do break []; end; assert(a == [])
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a = loop do break [1]; end; assert(a == [1])
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a = loop do break [nil]; end; assert(a == [nil])
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a = loop do break [[]]; end; assert(a == [[]])
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a = loop do break [*[]]; end; assert(a == [])
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a = loop do break [*[1]]; end; assert(a == [1])
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a = loop do break [*[1,2]]; end; assert(a == [1,2])
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a = loop do break *nil; end; assert(a == nil)
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a = loop do break *1; end; assert(a == 1)
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a = loop do break *[]; end; assert(a == nil)
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a = loop do break *[1]; end; assert(a == 1)
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a = loop do break *[nil]; end; assert(a == nil)
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a = loop do break *[[]]; end; assert(a == [])
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a = loop do break *[*[]]; end; assert(a == nil)
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a = loop do break *[*[1]]; end; assert(a == 1)
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a = loop do break *[*[1,2]]; end; assert(a == [1,2])
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*a = loop do break; end; assert(a == [nil])
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*a = loop do break nil; end; assert(a == [nil])
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*a = loop do break 1; end; assert(a == [1])
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*a = loop do break []; end; assert(a == [[]])
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*a = loop do break [1]; end; assert(a == [[1]])
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*a = loop do break [nil]; end; assert(a == [[nil]])
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*a = loop do break [[]]; end; assert(a == [[[]]])
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*a = loop do break [1,2]; end; assert(a == [[1,2]])
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*a = loop do break [*[]]; end; assert(a == [[]])
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*a = loop do break [*[1]]; end; assert(a == [[1]])
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*a = loop do break [*[1,2]]; end; assert(a == [[1,2]])
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*a = loop do break *nil; end; assert(a == [nil])
|
|
*a = loop do break *1; end; assert(a == [1])
|
|
*a = loop do break *[]; end; assert(a == [nil])
|
|
*a = loop do break *[1]; end; assert(a == [1])
|
|
*a = loop do break *[nil]; end; assert(a == [nil])
|
|
*a = loop do break *[[]]; end; assert(a == [[]])
|
|
*a = loop do break *[1,2]; end; assert(a == [[1,2]])
|
|
*a = loop do break *[*[]]; end; assert(a == [nil])
|
|
*a = loop do break *[*[1]]; end; assert(a == [1])
|
|
*a = loop do break *[*[1,2]]; end; assert(a == [[1,2]])
|
|
|
|
*a = *loop do break *nil; end; assert(a == [nil])
|
|
*a = *loop do break *1; end; assert(a == [1])
|
|
*a = *loop do break *[]; end; assert(a == [nil])
|
|
*a = *loop do break *[1]; end; assert(a == [1])
|
|
*a = *loop do break *[nil]; end; assert(a == [nil])
|
|
*a = *loop do break *[[]]; end; assert(a == [])
|
|
*a = *loop do break *[1,2]; end; assert(a == [1,2])
|
|
*a = *loop do break *[*[]]; end; assert(a == [nil])
|
|
*a = *loop do break *[*[1]]; end; assert(a == [1])
|
|
*a = *loop do break *[*[1,2]]; end; assert(a == [1,2])
|
|
|
|
a,b,*c = loop do break; end; assert([a,b,c] == [nil,nil,[]])
|
|
a,b,*c = loop do break nil; end; assert([a,b,c] == [nil,nil,[]])
|
|
a,b,*c = loop do break 1; end; assert([a,b,c] == [1,nil,[]])
|
|
a,b,*c = loop do break []; end; assert([a,b,c] == [nil,nil,[]])
|
|
a,b,*c = loop do break [1]; end; assert([a,b,c] == [1,nil,[]])
|
|
a,b,*c = loop do break [nil]; end; assert([a,b,c] == [nil,nil,[]])
|
|
a,b,*c = loop do break [[]]; end; assert([a,b,c] == [[],nil,[]])
|
|
a,b,*c = loop do break [1,2]; end; assert([a,b,c] == [1,2,[]])
|
|
a,b,*c = loop do break [*[]]; end; assert([a,b,c] == [nil,nil,[]])
|
|
a,b,*c = loop do break [*[1]]; end; assert([a,b,c] == [1,nil,[]])
|
|
a,b,*c = loop do break [*[1,2]]; end; assert([a,b,c] == [1,2,[]])
|
|
|
|
a,b,*c = loop do break *nil; end; assert([a,b,c] == [nil,nil,[]])
|
|
a,b,*c = loop do break *1; end; assert([a,b,c] == [1,nil,[]])
|
|
a,b,*c = loop do break *[]; end; assert([a,b,c] == [nil,nil,[]])
|
|
a,b,*c = loop do break *[1]; end; assert([a,b,c] == [1,nil,[]])
|
|
a,b,*c = loop do break *[nil]; end; assert([a,b,c] == [nil,nil,[]])
|
|
a,b,*c = loop do break *[[]]; end; assert([a,b,c] == [nil,nil,[]])
|
|
a,b,*c = loop do break *[1,2]; end; assert([a,b,c] == [1,2,[]])
|
|
a,b,*c = loop do break *[*[]]; end; assert([a,b,c] == [nil,nil,[]])
|
|
a,b,*c = loop do break *[*[1]]; end; assert([a,b,c] == [1,nil,[]])
|
|
a,b,*c = loop do break *[*[1,2]]; end; assert([a,b,c] == [1,2,[]])
|
|
end
|
|
|
|
def test_next
|
|
def r(val); a = yield(); assert(a == val, 2); end
|
|
r(nil){next}
|
|
r(nil){next nil}
|
|
r(1){next 1}
|
|
r([]){next []}
|
|
r([1]){next [1]}
|
|
r([nil]){next [nil]}
|
|
r([[]]){next [[]]}
|
|
r([]){next [*[]]}
|
|
r([1]){next [*[1]]}
|
|
r([1,2]){next [*[1,2]]}
|
|
|
|
r(nil){next *nil}
|
|
r(1){next *1}
|
|
r(nil){next *[]}
|
|
r(1){next *[1]}
|
|
r(nil){next *[nil]}
|
|
r([]){next *[[]]}
|
|
r(nil){next *[*[]]}
|
|
r(1){next *[*[1]]}
|
|
r([1,2]){next *[*[1,2]]}
|
|
|
|
def r(val); *a = yield(); assert(a == val, 2); end
|
|
r([nil]){next}
|
|
r([nil]){next nil}
|
|
r([1]){next 1}
|
|
r([[]]){next []}
|
|
r([[1]]){next [1]}
|
|
r([[nil]]){next [nil]}
|
|
r([[[]]]){next [[]]}
|
|
r([[1,2]]){next [1,2]}
|
|
r([[]]){next [*[]]}
|
|
r([[1]]){next [*[1]]}
|
|
r([[1,2]]){next [*[1,2]]}
|
|
|
|
def r(val); *a = *yield(); assert(a == val, 2); end
|
|
r([nil]){next *nil}
|
|
r([1]){next *1}
|
|
r([nil]){next *[]}
|
|
r([1]){next *[1]}
|
|
r([nil]){next *[nil]}
|
|
r([]){next *[[]]}
|
|
r([1,2]){next *[1,2]}
|
|
r([nil]){next *[*[]]}
|
|
r([1]){next *[*[1]]}
|
|
r([1,2]){next *[*[1,2]]}
|
|
|
|
def r(val); a,b,*c = yield(); assert([a,b,c] == val, 2); end
|
|
r([nil,nil,[]]){next}
|
|
r([nil,nil,[]]){next nil}
|
|
r([1,nil,[]]){next 1}
|
|
r([nil,nil,[]]){next []}
|
|
r([1,nil,[]]){next [1]}
|
|
r([nil,nil,[]]){next [nil]}
|
|
r([[],nil,[]]){next [[]]}
|
|
r([1,2,[]]){next [1,2]}
|
|
r([nil,nil,[]]){next [*[]]}
|
|
r([1,nil,[]]){next [*[1]]}
|
|
r([1,2,[]]){next [*[1,2]]}
|
|
|
|
def r(val); a,b,*c = *yield(); assert([a,b,c] == val, 2); end
|
|
r([nil,nil,[]]){next *nil}
|
|
r([1,nil,[]]){next *1}
|
|
r([nil,nil,[]]){next *[]}
|
|
r([1,nil,[]]){next *[1]}
|
|
r([nil,nil,[]]){next *[nil]}
|
|
r([nil,nil,[]]){next *[[]]}
|
|
r([1,2,[]]){next *[1,2]}
|
|
r([nil,nil,[]]){next *[*[]]}
|
|
r([1,nil,[]]){next *[*[1]]}
|
|
r([1,2,[]]){next *[*[1,2]]}
|
|
end
|
|
|
|
def test_assign2
|
|
a = nil
|
|
assert(defined?(a))
|
|
assert(a == nil)
|
|
|
|
# multiple asignment
|
|
a, b = 1, 2
|
|
assert(a == 1 && b == 2)
|
|
|
|
a, b = b, a
|
|
assert(a == 2 && b == 1)
|
|
|
|
a, = 1,2
|
|
assert(a == 1)
|
|
|
|
a, *b = 1, 2, 3
|
|
assert(a == 1 && b == [2, 3])
|
|
|
|
a, (b, c), d = 1, [2, 3], 4
|
|
assert(a == 1 && b == 2 && c == 3 && d == 4)
|
|
|
|
*a = 1, 2, 3
|
|
assert(a == [1, 2, 3])
|
|
|
|
*a = 4
|
|
assert(a == [4])
|
|
|
|
*a = nil
|
|
assert(a == [nil])
|
|
end
|
|
end
|