[Bug #891] MiniTest::Assertions#assert_instance_of should use Object#instance_of?

Ruby Development
1

Bug #891: MiniTest::Assertions#assert_instance_of should use
Object#instance_of?
http://redmine.ruby-lang.org/issues/show/891

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e$B%+%F%4%je(B: lib

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Module#=== e$B$G$O$J$/$Fe(B Object#instance_of?
e$B$r;HMQ$9$k$Y$-$G$O$J$$$G$7$g$&$+!)e(B
test/unit e$B$G$Oe(B Object#instance_of? e$B$r;HMQ$7$F$$$^$7$?!#e(B

2

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In message “Re: [ruby-dev:37458] [Bug #891]
MiniTest::Assertions#assert_instance_of should use Object#instance_of?”
on Tue, 16 Dec 2008 16:26:38 +0900, okkez _ [email protected]
writes:

|e$B%?%$%H%k$NDL$j$J$N$G$9$,!"e(BMiniTest::Assertions#assert_instance_of e$B$N<BAu$,$*$+$7$$$H;W$$$^$9!#e(B
|Module#=== e$B$G$O$J$/$Fe(B Object#instance_of? e$B$r;HMQ$9$k$Y$-$G$O$J$$$G$7$g$&$+!)e(B

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3

From: Yukihiro M. [email protected]
Subject: [ruby-dev:37459] Re: [Bug #891]
MiniTest::Assertions#assert_instance_of should use Object#instance_of?
Date: Tue, 16 Dec 2008 17:33:46 +0900

|Module#=== e$B$G$O$J$/$Fe(B Object#instance_of? e$B$r;HMQ$9$k$Y$-$G$O$J$$$G$7$g$&$+!)e(B

e$B$3$N$U$?$D$OF1$8F/$-$G$9$,!"!V$*$+$7$$!W$H$$$&$N$O$I$&$$$&0Ue(B

Object#instance_of?e$B$O%5%V%/%i%9$@$H$@$a$G$9$h$M!#e(B

Numeric === 1 # => true
Fixnum === 1 # => true
1.instance_of? Fixnum # => true
1.instance_of? Numeric # => false

4

okkez e$B$G$9!#e(B

Ruby

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2008/12/16 17:33 Yukihiro M. [email protected]:

e$B$“$l$P!”%P%0$H$O8@$($J$$$h$&$J!#e(B

e$B0J2<$N$h$&$J<B9T7k2L$K$J$k$+$i$G$9!#e(B
Object#instance_of?(klass) e$B$O%l%7!<%P$,e(B klass
e$B$ND>@$N%$%s%9%?%s%9$K$J$C$F$$$ke(B
e$B>l9g$@$1e(B true e$B$rJV$7$^$9!#e(B

RUBY_DESCRIPTION
=> “ruby 1.9.1 (2008-12-16 revision 20782) [i686-linux]”
String === ‘a’
=> true
Object === ‘a’
=> true
‘a’.kind_of?(String)
=> true
‘a’.kind_of?(Object)
=> true
‘a’.instance_of?(String)
=> true
‘a’.instance_of?(Object)
=> false

5

e$B%A%1%C%He(B #891 e$B$,99?7$5$l$^$7$?!#e(B (by Yukihiro M.)

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Applied in changeset r20798.

http://redmine.ruby-lang.org/issues/show/891

6

e$B$^$D$b$He(B e$B$f$-$R$m$G$9e(B

In message “Re: [ruby-dev:37464] Re: [Bug #891]
MiniTest::Assertions#assert_instance_of should use Object#instance_of?”
on Tue, 16 Dec 2008 20:22:23 +0900, okkez [email protected]
writes:

|e$B0J2<$N$h$&$J<B9T7k2L$K$J$k$+$i$G$9!#e(B
|Object#instance_of?(klass) e$B$O%l%7!<%P$,e(B klass e$B$ND>@$N%$%s%9%?%s%9$K$J$C$F$$$ke(B
|e$B>l9g$@$1e(B true e$B$rJV$7$^$9!#e(B

e$B$J$k$[$I!#%3%_%C%H$7$^$9!#e(B

e$B$?$@!“e(Bminiteste$B$Oe(BRyan D.e$B$,%a%s%F%J$G$9$+$i!”:#8e$Oe(B
ruby-coree$B$K%l%]!<%H$7$F$$$?$@$/$N$,3N<B$@$H;W$$$^$9!#:#2s$Ne(B
e$B%3%_%C%H$,%m%9%H$7$J$-$c$$$$$1$I!#e(B

7

okkez e$B$G$9!#e(B

2008/12/16 22:05 Yukihiro M. [email protected]:

e$B$?$@!“e(Bminiteste$B$Oe(BRyan D.e$B$,%a%s%F%J$G$9$+$i!”:#8e$Oe(B
ruby-coree$B$K%l%]!<%H$7$F$$$?$@$/$N$,3N<B$@$H;W$$$^$9!#:#2s$Ne(B
e$B%3%_%C%H$,%m%9%H$7$J$-$c$$$$$1$I!#e(B

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