1 files changed, 217 insertions, 0 deletions
diff --git a/trunk/test/ruby/test_numeric.rb b/trunk/test/ruby/test_numeric.rb
new file mode 100644
index 0000000000..3db054fdae
--- /dev/null
+++ b/trunk/test/ruby/test_numeric.rb
@@ -0,0 +1,217 @@
+require 'test/unit'
+
+class TestNumeric < Test::Unit::TestCase
+  class DummyNumeric < Numeric
+  end
+
+  def test_coerce
+    a, b = 1.coerce(2)
+    assert_equal(Fixnum, a.class)
+    assert_equal(Fixnum, b.class)
+
+    a, b = 1.coerce(2.0)
+    assert_equal(Float, a.class)
+    assert_equal(Float, b.class)
+
+    assert_raise(TypeError) { -Numeric.new }
+  end
+
+  def test_dummynumeric
+    a = DummyNumeric.new
+
+    DummyNumeric.class_eval do
+      def coerce(x); nil; end
+    end
+    assert_raise(TypeError) { -a }
+    assert_nil(1 <=> a)
+    assert_raise(ArgumentError) { 1 <= a }
+
+    DummyNumeric.class_eval do
+      def coerce(x); 1.coerce(x); end
+    end
+    assert_equal(2, 1 + a)
+    assert_equal(0, 1 <=> a)
+    assert(1 <= a)
+
+    DummyNumeric.class_eval do
+      def coerce(x); [x, 1]; end
+    end
+    assert_equal(-1, -a)
+
+  ensure
+    DummyNumeric.class_eval do
+      remove_method :coerce
+    end
+  end
+
+  def test_numeric
+    a = Numeric.new
+    assert_raise(TypeError) { def a.foo; end }
+    assert_raise(TypeError) { a.dup }
+  end
+
+  def test_quo
+    assert_raise(ArgumentError) {DummyNumeric.new.quo(1)}
+  end
+
+  def test_divmod
+    DummyNumeric.class_eval do
+      def /(x); 42.0; end
+      def %(x); :mod; end
+    end
+
+    assert_equal(42, DummyNumeric.new.div(1))
+    assert_equal(:mod, DummyNumeric.new.modulo(1))
+    assert_equal([42, :mod], DummyNumeric.new.divmod(1))
+
+    assert_kind_of(Integer, 11.divmod(3.5).first, '[ruby-dev:34006]')
+
+  ensure
+    DummyNumeric.class_eval do
+      remove_method :/, :%
+    end
+  end
+
+  def test_scalar_p
+    assert(Numeric.new.scalar?)
+  end
+
+  def test_integer_p
+    assert(!Numeric.new.integer?)
+  end
+
+  def test_abs
+    a = DummyNumeric.new
+    DummyNumeric.class_eval do
+      def -@; :ok; end
+      def <(x); true; end
+    end
+
+    assert_equal(:ok, a.abs)
+
+    DummyNumeric.class_eval do
+      def <(x); false; end
+    end
+
+    assert_equal(a, a.abs)
+
+  ensure
+    DummyNumeric.class_eval do
+      remove_method :-@, :<
+    end
+  end
+
+  def test_zero_p
+    DummyNumeric.class_eval do
+      def ==(x); true; end
+    end
+
+    assert(DummyNumeric.new.zero?)
+
+  ensure
+    DummyNumeric.class_eval do
+      remove_method :==
+    end
+  end
+
+  def test_to_int
+    DummyNumeric.class_eval do
+      def to_i; :ok; end
+    end
+
+    assert_equal(:ok, DummyNumeric.new.to_int)
+
+  ensure
+    DummyNumeric.class_eval do
+      remove_method :to_i
+    end
+  end
+
+  def test_cmp
+    a = Numeric.new
+    assert_equal(0, a <=> a)
+    assert_nil(a <=> :foo)
+  end
+
+  def test_floor_ceil_round_truncate
+    DummyNumeric.class_eval do
+      def to_f; 1.5; end
+    end
+
+    a = DummyNumeric.new
+    assert_equal(1, a.floor)
+    assert_equal(2, a.ceil)
+    assert_equal(2, a.round)
+    assert_equal(1, a.truncate)
+
+    DummyNumeric.class_eval do
+      def to_f; 1.4; end
+    end
+
+    a = DummyNumeric.new
+    assert_equal(1, a.floor)
+    assert_equal(2, a.ceil)
+    assert_equal(1, a.round)
+    assert_equal(1, a.truncate)
+
+    DummyNumeric.class_eval do
+      def to_f; -1.5; end
+    end
+
+    a = DummyNumeric.new
+    assert_equal(-2, a.floor)
+    assert_equal(-1, a.ceil)
+    assert_equal(-2, a.round)
+    assert_equal(-1, a.truncate)
+
+  ensure
+    DummyNumeric.class_eval do
+      remove_method :to_f
+    end
+  end
+
+  def test_step
+    a = []
+    1.step(10) {|x| a << x }
+    assert_equal([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], a)
+
+    a = []
+    1.step(10, 2) {|x| a << x }
+    assert_equal([1, 3, 5, 7, 9], a)
+
+    assert_raise(ArgumentError) { 1.step(10, 1, 0) { } }
+    assert_raise(ArgumentError) { 1.step(10, 0) { } }
+
+    a = []
+    10.step(1, -2) {|x| a << x }
+    assert_equal([10, 8, 6, 4, 2], a)
+
+    a = []
+    1.0.step(10.0, 2.0) {|x| a << x }
+    assert_equal([1.0, 3.0, 5.0, 7.0, 9.0], a)
+
+    a = []
+    1.step(10, 2**32) {|x| a << x }
+    assert_equal([1], a)
+
+    a = []
+    10.step(1, -(2**32)) {|x| a << x }
+    assert_equal([10], a)
+  end
+
+  def test_num2long
+    assert_raise(TypeError) { 1 & nil }
+    assert_raise(TypeError) { 1 & 1.0 }
+    assert_raise(TypeError) { 1 & 2147483648.0 }
+    assert_raise(TypeError) { 1 & 9223372036854777856.0 }
+    o = Object.new
+    def o.to_int; 1; end
+    assert_equal(1, 1 & o)
+  end
+
+  def test_eql
+    assert(1 == 1.0)
+    assert(!(1.eql?(1.0)))
+    assert(!(1.eql?(2)))
+  end
+end