# Exhaustive tests for struct.c, sprintf.c and math.c

e\$B1sF#\$H?=\$7\$^\$9!#e(B

test_struct.rb e\$B\$He(B test_sprintf.rb e\$B\$He(B test_math.rb
e\$B\$K\$b%F%9%H\$rDI2Ce(B
e\$B\$7\$^\$7\$?!#e(Bgcov e\$B\$G\$N%+%P%l%C%8\$,0J2<\$N\$h\$&\$K>e\$,\$j\$^\$9!#e(B

struct.c : 55.87% -> 94.60%
sprintf.c : 70.45% -> 97.50%
math.c : 28.36% -> 98.51%

e\$B\$3\$l\$b%3%_%C%H\$7\$F\$h\$m\$7\$\$\$G\$7\$g\$&\$+!#\$h\$1\$l\$P\$=\$N\$&\$AB>\$G\$b\$d\$m\$&\$He(B
e\$B;W\$\$\$^\$9!#e(B

# Index: test/ruby/test_struct.rb

— test/ruby/test_struct.rb (revision 15173)
+++ test/ruby/test_struct.rb (working copy)
@@ -49,4 +49,162 @@
}
}
end
+

• def test_inherit

• klass = Struct.new(:a)

• klass2 = Class.new(klass)

• o = klass2.new(1)

• assert_equal(1, o.a)

• end

• def test_members

• klass = Struct.new(:a)

• o = klass.new(1)

• assert_equal([:a], klass.members)

• assert_equal([:a], o.members)

• end

• def test_ref

• klass = Struct.new(:a)

• o = klass.new(1)

• assert_equal(1, o[:a])

• assert_raise(NameError) { o[:b] }

• end

• def test_modify

• klass = Struct.new(:a)

• o = klass.new(1)

• assert_raise(SecurityError) do

• `````` Thread.new do
``````
• ``````   \$SAFE = 4
``````
• ``````   o.a = 2
``````
• `````` end.value
``````
• end

• end

• def test_set

• klass = Struct.new(:a)

• o = klass.new(1)

• o[:a] = 2

• assert_equal(2, o[:a])

• assert_raise(NameError) { o[:b] = 3 }

• end

• def test_struct_new

• Struct.instance_eval { const_set(:Foo, nil) }

• assert_raise(NameError) { Struct.new(“foo”) }

• assert_nothing_raised { Struct.new(“Foo”) }

• Struct.instance_eval { remove_const(:Foo) }

• assert_nothing_raised { Struct.new(:a) { } }

• assert_raise(RuntimeError) { Struct.new(:a) { raise } }

• assert_equal([:utime, :stime, :cutime, :cstime],
Process.times.members)

• end

• def test_initialize

• klass = Struct.new(:a)

• assert_raise(ArgumentError) { klass.new(1, 2) }

• end

• def test_each

• klass = Struct.new(:a, :b)

• o = klass.new(1, 2)

• assert_equal([1, 2], o.each.to_a)

• end

• def test_each_pair

• klass = Struct.new(:a, :b)

• o = klass.new(1, 2)

• assert_equal([[:a, 1], [:b, 2]], o.each_pair.to_a)

• end

• def test_inspect

• klass = Struct.new(:a)

• o = klass.new(1)

• assert_equal("#", o.inspect)

• o.a = o

• assert(o.inspect =~ /^#<struct a=#<struct #<.*?>:…>>\$/)

• Struct.new(“Foo”, :a)

• o = Struct::Foo.new(1)

• assert_equal("#", o.inspect)

• Struct.instance_eval { remove_const(:Foo) }

• klass = Struct.new(:a, :b)

• o = klass.new(1, 2)

• assert_equal("#", o.inspect)

• klass = Struct.new(:@a)

• o = klass.new(1)

• assert_equal("#<struct :@a=1>", o.inspect)

• end

• def test_init_copy

• klass = Struct.new(:a)

• o = klass.new(1)

• assert_equal(o, o.dup)

• end

• def test_aref

• klass = Struct.new(:a)

• o = klass.new(1)

• assert_equal(1, o[0])

• assert_raise(IndexError) { o[-2] }

• assert_raise(IndexError) { o[1] }

• end

• def test_aset

• klass = Struct.new(:a)

• o = klass.new(1)

• o[0] = 2

• assert_equal(2, o[:a])

• assert_raise(IndexError) { o[-2] = 3 }

• assert_raise(IndexError) { o[1] = 3 }

• end

• def test_values_at

• klass = Struct.new(:a, :b, :c, :d, :e, :f)

• o = klass.new(1, 2, 3, 4, 5, 6)

• assert_equal([2, 4, 6], o.values_at(1, 3, 5))

• assert_equal([2, 3, 4, 3, 4, 5], o.values_at(1…3, 2…5))

• end

• def test_select

• klass = Struct.new(:a, :b, :c, :d, :e, :f)

• o = klass.new(1, 2, 3, 4, 5, 6)

• assert_equal([1, 3, 5], o.select {|v| v % 2 != 0 })

• assert_raise(ArgumentError) { o.select(1) }

• end

• def test_equal

• klass1 = Struct.new(:a)

• klass2 = Struct.new(:a, :b)

• o1 = klass1.new(1)

• o2 = klass1.new(1)

• o3 = klass2.new(1)

• assert(o1.==(o2))

• assert(o1 != o3)

• end

• def test_hash

• klass = Struct.new(:a)

• o = klass.new(1)

• assert(o.hash.is_a?(Fixnum))

• end

• def test_eql

• klass1 = Struct.new(:a)

• klass2 = Struct.new(:a, :b)

• o1 = klass1.new(1)

• o2 = klass1.new(1)

• o3 = klass2.new(1)

• assert(o1.eql?(o2))

• assert(!(o1.eql?(o3)))

• end

• def test_size

• klass = Struct.new(:a)

• o = klass.new(1)

• assert_equal(1, o.size)

• end
end
Index: test/ruby/test_sprintf.rb
===================================================================
— test/ruby/test_sprintf.rb (revision 15173)
+++ test/ruby/test_sprintf.rb (working copy)
@@ -173,10 +173,88 @@
assert_equal("%\0x hello", sprintf("%\0x hello"),
“[ruby-core:11571]”)

assert_raise(ArgumentError, “[ruby-core:11573]”)
{sprintf("%.25555555555555555555555555555555555555s", “hello”)}

• assert_raise(ArgumentError) { sprintf("%\1", 1) }

• assert_raise(ArgumentError) { sprintf("%!", 1) }

• assert_raise(ArgumentError) { sprintf("%1\$1\$d", 1) }

• assert_raise(ArgumentError) { sprintf("%0%") }

• assert_nothing_raised { sprintf("", 1) }
end

def test_float
assert_equal(“36893488147419111424”,
sprintf("%20.0f", 36893488147419107329.0))
end
+

• BSIZ = 120
• def test_skip
• assert_equal(" " * BSIZ + “1”, sprintf(" " * BSIZ + “%d”, 1))
• end
• def test_char
• assert_equal(“a”, sprintf("%c", 97))
• assert_equal(“a”, sprintf("%c", ?a))
• assert_raise(ArgumentError) { sprintf("%c", sprintf("%c%c", ?a,
?a)) }
• assert_equal(" " * (BSIZ - 1) + “a”, sprintf(" " * (BSIZ - 1) +
“%c”, ?a))
• assert_equal(" " * (BSIZ - 1) + “a”, sprintf(" " * (BSIZ - 1) +
“%-1c”, ?a))
• assert_equal(" " * BSIZ + “a”, sprintf("%#{ BSIZ + 1 }c", ?a))
• assert_equal(“a” + " " * BSIZ, sprintf("%-#{ BSIZ + 1 }c", ?a))
• end
• def test_string
• assert_equal(“foo”, sprintf("%s", “foo”))
• assert_equal(“fo”, sprintf("%.2s", “foo”))
• assert_equal(" " * BSIZ, sprintf("%s", " " * BSIZ))
• assert_equal(" " * (BSIZ - 1) + “foo”, sprintf("%#{ BSIZ - 1 + 3
}s", “foo”))
• assert_equal(" " * BSIZ + “foo”, sprintf("%#{ BSIZ + 3 }s", “foo”))
• assert_equal(“foo” + " " * BSIZ, sprintf("%-#{ BSIZ + 3 }s",
“foo”))
• end
• def test_integer
• assert_equal(“01”, sprintf("%#o", 1))
• assert_equal(“0x1”, sprintf("%#x", 1))
• assert_equal(“0X1”, sprintf("%#X", 1))
• assert_equal(“0b1”, sprintf("%#b", 1))
• assert_equal(“0B1”, sprintf("%#B", 1))
• assert_equal(“1”, sprintf("%d", 1.0))
• assert_equal(“4294967296”, sprintf("%d", (2**32).to_f))
• assert_equal(“1”, sprintf("%d", “1”))
• o = Object.new; def o.to_int; 1; end
• assert_equal(“1”, sprintf("%d", o))
• assert_equal("+1", sprintf("%+d", 1))
• assert_equal(" 1", sprintf("% d", 1))
• assert_equal("…f", sprintf("%x", -1))
• assert_equal("…7", sprintf("%o", -1))
• one = (2**32).coerce(1).first
• mone = (2**32).coerce(-1).first
• assert_equal("+1", sprintf("%+d", one))
• assert_equal(" 1", sprintf("% d", one))
• assert_equal("…f", sprintf("%x", mone))
• assert_equal("…7", sprintf("%o", mone))
• assert_equal(" " * BSIZ + “1”, sprintf("%#{ BSIZ + 1 }d", one))
• assert_equal(" " * (BSIZ - 1) + “1”, sprintf(" " * (BSIZ - 1) +
“%d”, 1))
• end
• def test_float2
• inf = 1.0 / 0.0
• assert_equal(" " * BSIZ + “Inf”, sprintf("%#{ BSIZ + 3 }.1f", inf))
• assert_equal("+Inf", sprintf("%±f", inf))
• assert_equal(" " * BSIZ + “1.0”, sprintf("%#{ BSIZ + 3 }.1f", 1.0))
• end
• class
T012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789
• end
• def test_star
• assert_equal("-1 “, sprintf(”%*d", -3, -1))
• end
• def test_escape
• assert_equal("%" * BSIZ, sprintf("%%" * BSIZ))
• end
• def test_rb_sprintf

assert(T012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789.new.inspect
=~
/^#TestSprintf::T012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789:0x[0-9a-f]+\$/)

• end
end
Index: test/ruby/test_math.rb
===================================================================
— test/ruby/test_math.rb (revision 15173)
+++ test/ruby/test_math.rb (working copy)
@@ -1,12 +1,173 @@
require ‘test/unit’

class TestMath < Test::Unit::TestCase

• def test_math
• assert_equal(2, Math.sqrt(4))
• def check(a, b)
• assert(a - b < Float::EPSILON * 3)
• end
• self.class.class_eval {
• `````` include Math
``````
• }
• assert_equal(2, sqrt(4))
• def test_atan2
• check(Math.atan2(0, 1), 0)
• check(Math.atan2(1, 1), Math::PI / 4)
• check(Math.atan2(1, 0), Math::PI / 2)
end
• def test_cos
• check(Math.cos(0 * Math::PI / 4), 1.0)
• check(Math.cos(1 * Math::PI / 4), 1.0 / Math.sqrt(2))
• check(Math.cos(2 * Math::PI / 4), 0.0)
• check(Math.cos(4 * Math::PI / 4), -1.0)
• check(Math.cos(6 * Math::PI / 4), 0.0)
• end
• def test_sin
• check(Math.sin(0 * Math::PI / 4), 0.0)
• check(Math.sin(1 * Math::PI / 4), 1.0 / Math.sqrt(2))
• check(Math.sin(2 * Math::PI / 4), 1.0)
• check(Math.sin(4 * Math::PI / 4), 0.0)
• check(Math.sin(6 * Math::PI / 4), -1.0)
• end
• def test_tan
• check(Math.tan(0 * Math::PI / 4), 0.0)
• check(Math.tan(1 * Math::PI / 4), 1.0)
• assert(Math.tan(2 * Math::PI / 4).abs > 1024)
• check(Math.tan(4 * Math::PI / 4), 0.0)
• assert(Math.tan(6 * Math::PI / 4).abs > 1024)
• end
• def test_acos
• check(0 * Math::PI / 4, Math.acos( 1.0))
• check(1 * Math::PI / 4, Math.acos( 1.0 / Math.sqrt(2)))
• check(2 * Math::PI / 4, Math.acos( 0.0))
• check(4 * Math::PI / 4, Math.acos(-1.0))
• assert_raise(Errno::EDOM, Errno::ERANGE) { Math.acos(2.0) }
• end
• def test_asin
• check( 0 * Math::PI / 4, Math.asin( 0.0))
• check( 1 * Math::PI / 4, Math.asin( 1.0 / Math.sqrt(2)))
• check( 2 * Math::PI / 4, Math.asin( 1.0))
• check(-2 * Math::PI / 4, Math.asin(-1.0))
• assert_raise(Errno::EDOM, Errno::ERANGE) { Math.asin(2.0) }
• end
• def test_atan
• check( 0 * Math::PI / 4, Math.atan( 0.0))
• check( 1 * Math::PI / 4, Math.atan( 1.0))
• check( 2 * Math::PI / 4, Math.atan(1.0 / 0.0))
• check(-1 * Math::PI / 4, Math.atan(-1.0))
• end
• def test_cosh
• check(1, Math.cosh(0))
• check((Math::E ** 1 + Math::E ** -1) / 2, Math.cosh(1))
• check((Math::E ** 2 + Math::E ** -2) / 2, Math.cosh(2))
• end
• def test_sinh
• check(0, Math.sinh(0))
• check((Math::E ** 1 - Math::E ** -1) / 2, Math.sinh(1))
• check((Math::E ** 2 - Math::E ** -2) / 2, Math.sinh(2))
• end
• def test_tanh
• check(Math.sinh(0) / Math.cosh(0), Math.tanh(0))
• check(Math.sinh(1) / Math.cosh(1), Math.tanh(1))
• check(Math.sinh(2) / Math.cosh(2), Math.tanh(2))
• end
• def test_acosh
• check(Math.acosh(1), 0)
• check(Math.acosh((Math::E ** 1 + Math::E ** -1) / 2), 1)
• check(Math.acosh((Math::E ** 2 + Math::E ** -2) / 2), 2)
• assert_raise(Errno::EDOM, Errno::ERANGE) { Math.acosh(0) }
• end
• def test_asinh
• check(Math.asinh(0), 0)
• check(Math.asinh((Math::E ** 1 - Math::E ** -1) / 2), 1)
• check(Math.asinh((Math::E ** 2 - Math::E ** -2) / 2), 2)
• end
• def test_atanh
• check(Math.atanh(Math.sinh(0) / Math.cosh(0)), 0)
• check(Math.atanh(Math.sinh(1) / Math.cosh(1)), 1)
• check(Math.atanh(Math.sinh(2) / Math.cosh(2)), 2)
• assert_raise(Errno::EDOM, Errno::ERANGE) { Math.atanh(-1) }
• end
• def test_exp
• check(1, Math.exp(0))
• check(Math.sqrt(Math::E), Math.exp(0.5))
• check(Math::E, Math.exp(1))
• check(Math::E ** 2, Math.exp(2))
• end
• def test_log
• check(0, Math.log(1))
• check(1, Math.log(Math::E))
• check(0, Math.log(1, 10))
• check(1, Math.log(10, 10))
• check(2, Math.log(100, 10))
• assert_raise(Errno::EDOM, Errno::ERANGE) { Math.log(0) }
• assert_raise(Errno::EDOM, Errno::ERANGE) { Math.log(-1) }
• end
• def test_log2
• check(0, Math.log2(1))
• check(1, Math.log2(2))
• check(2, Math.log2(4))
• assert_raise(Errno::EDOM, Errno::ERANGE) { Math.log2(0) }
• assert_raise(Errno::EDOM, Errno::ERANGE) { Math.log2(-1) }
• end
• def test_log10
• check(0, Math.log10(1))
• check(1, Math.log10(10))
• check(2, Math.log10(100))
• assert_raise(Errno::EDOM, Errno::ERANGE) { Math.log10(0) }
• assert_raise(Errno::EDOM, Errno::ERANGE) { Math.log10(-1) }
• end
• def test_sqrt
• check(0, Math.sqrt(0))
• check(1, Math.sqrt(1))
• check(2, Math.sqrt(4))
• assert_raise(Errno::EDOM, Errno::ERANGE) { Math.sqrt(-1) }
• end
• def test_frexp
• check(0.0, Math.frexp(0.0).first)
• assert_equal(0, Math.frexp(0).last)
• check(0.5, Math.frexp(0.5).first)
• assert_equal(0, Math.frexp(0.5).last)
• check(0.5, Math.frexp(1.0).first)
• assert_equal(1, Math.frexp(1.0).last)
• check(0.5, Math.frexp(2.0).first)
• assert_equal(2, Math.frexp(2.0).last)
• check(0.75, Math.frexp(3.0).first)
• assert_equal(2, Math.frexp(3.0).last)
• end
• def test_ldexp
• check(0.0, Math.ldexp(0.0, 0.0))
• check(0.5, Math.ldexp(0.5, 0.0))
• check(1.0, Math.ldexp(0.5, 1.0))
• check(2.0, Math.ldexp(0.5, 2.0))
• check(3.0, Math.ldexp(0.75, 2.0))
• end
• def test_hypot
• check(5, Math.hypot(3, 4))
• end
• def test_erf
• check(0, Math.erf(0))
• check(1, Math.erf(1.0 / 0.0))
• end
• def test_erfc
• check(1, Math.erfc(0))
• check(0, Math.erfc(1.0 / 0.0))
• end
end

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

In message “Re: [ruby-dev:33280] exhaustive tests for struct.c,
sprintf.c and math.c”
on Wed, 23 Jan 2008 00:03:52 +0900, “Yusuke ENDOH” [email protected]
writes:

|test_struct.rb e\$B\$He(B test_sprintf.rb e\$B\$He(B test_math.rb e\$B\$K\$b%F%9%H\$rDI2Ce(B
|e\$B\$7\$^\$7\$?!#e(Bgcov e\$B\$G\$N%+%P%l%C%8\$,0J2<\$N\$h\$&\$K>e\$,\$j\$^\$9!#e(B
|
|struct.c : 55.87% → 94.60%
|sprintf.c : 70.45% → 97.50%
|math.c : 28.36% → 98.51%
|
|e\$B\$3\$l\$b%3%_%C%H\$7\$F\$h\$m\$7\$\$\$G\$7\$g\$&\$+!#\$h\$1\$l\$P\$=\$N\$&\$AB>\$G\$b\$d\$m\$&\$He(B
|e\$B;W\$\$\$^\$9!#e(B

e\$B\$=\$&\$G\$9\$M!#\$=\$NB>\$N%F%9%H\$b1sN8\$J\$/DI2C\$7\$F\$/\$@\$5\$\$!#\$?\$@!"e(B
e\$B%F%9%H;~4V\$,0[MM\$KD9\$/\$J\$i\$J\$\$DxEY\$G:Q\$`\$H=u\$+\$j\$^\$9!#e(B