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Add tests for r36415.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36420 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
naruse 2012-07-17 18:08:40 +00:00
parent 3d68a73687
commit 85dc1ab23b
2 changed files with 45 additions and 12 deletions
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31
proc.c
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@ -622,18 +622,25 @@ rb_proc_call_with_block(VALUE self, int argc, VALUE *argv, VALUE pass_procval)
* arguments. A <code>proc</code> with no argument declarations
* is the same a block declaring <code>||</code> as its arguments.
*
* Proc.new {}.arity #=> 0
* Proc.new {||}.arity #=> 0
* Proc.new {|a|}.arity #=> 1
* Proc.new {|a,b|}.arity #=> 2
* Proc.new {|a,b,c|}.arity #=> 3
* Proc.new {|*a|}.arity #=> -1
* Proc.new {|a,*b|}.arity #=> -2
* Proc.new {|a,*b, c|}.arity #=> -3
* lambda { |a = 0| }.arity #=> -1
* lambda { |a, b = 0| }.arity #=> -2
* lambda { |a, b = 0, c = 0| }.arity #=> -2
* lambda { |(a, b), c = 0| }.arity #=> -2
* proc {}.arity #=> 0
* proc {||}.arity #=> 0
* proc {|a|}.arity #=> 1
* proc {|a,b|}.arity #=> 2
* proc {|a,b,c|}.arity #=> 3
* proc {|*a|}.arity #=> -1
* proc {|a,*b|}.arity #=> -2
* proc {|a,*b, c|}.arity #=> -3
*
* proc { |x = 0| }.arity #=> 0
* lambda { |a = 0| }.arity #=> -1
* proc { |x=0, y| }.arity #=> 0
* lambda { |x=0, y| }.arity #=> -2
* proc { |x=0, y=0| }.arity #=> 0
* lambda { |x=0, y=0| }.arity #=> -1
* proc { |x, y=0| }.arity #=> 1
* lambda { |x, y=0| }.arity #=> -2
* proc { |(x, y), z=0| }.arity #=> 1
* lambda { |(x, y), z=0| }.arity #=> -2
*/
static VALUE

26
test/ruby/test_proc.rb
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@ -62,13 +62,39 @@ class TestProc < Test::Unit::TestCase
assert_equal(0, proc{}.arity)
assert_equal(0, proc{||}.arity)
assert_equal(1, proc{|x|}.arity)
assert_equal(0, proc{|x=1|}.arity)
assert_equal(2, proc{|x, y|}.arity)
assert_equal(0, proc{|x=0, y|}.arity)
assert_equal(0, proc{|x=0, y=0|}.arity)
assert_equal(1, proc{|x, y=0|}.arity)
assert_equal(-2, proc{|x, *y|}.arity)
assert_equal(-1, proc{|x=0, *y|}.arity)
assert_equal(-1, proc{|*x|}.arity)
assert_equal(-1, proc{|*|}.arity)
assert_equal(-3, proc{|x, *y, z|}.arity)
assert_equal(-2, proc{|x=0, *y, z|}.arity)
assert_equal(2, proc{|(x, y), z|}.arity)
assert_equal(1, proc{|(x, y), z=0|}.arity)
assert_equal(-4, proc{|x, *y, z, a|}.arity)
assert_equal(0, lambda{}.arity)
assert_equal(0, lambda{||}.arity)
assert_equal(1, lambda{|x|}.arity)
assert_equal(-1, lambda{|x=1|}.arity) # different from proc
assert_equal(2, lambda{|x, y|}.arity)
assert_equal(-2, lambda{|x=0, y|}.arity) # different from proc
assert_equal(-1, lambda{|x=0, y=0|}.arity) # different from proc
assert_equal(-2, lambda{|x, y=0|}.arity) # different from proc
assert_equal(-2, lambda{|x, *y|}.arity)
assert_equal(-1, lambda{|x=0, *y|}.arity)
assert_equal(-1, lambda{|*x|}.arity)
assert_equal(-1, lambda{|*|}.arity)
assert_equal(-3, lambda{|x, *y, z|}.arity)
assert_equal(-2, lambda{|x=0, *y, z|}.arity)
assert_equal(2, lambda{|(x, y), z|}.arity)
assert_equal(-2, lambda{|(x, y), z=0|}.arity)
assert_equal(-4, lambda{|x, *y, z, a|}.arity)
assert_arity(0) {}
assert_arity(0) {||}
assert_arity(1) {|x|}