1 files changed, 101 insertions, 0 deletions
diff --git a/spec/ruby/core/range/each_spec.rb b/spec/ruby/core/range/each_spec.rb
new file mode 100644
index 0000000000..b4389f864d
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+++ b/spec/ruby/core/range/each_spec.rb
@@ -0,0 +1,101 @@
+require_relative '../../spec_helper'
+require_relative '../enumerable/shared/enumeratorized'
+
+describe "Range#each" do
+  it "passes each element to the given block by using #succ" do
+    a = []
+    (-5..5).each { |i| a << i }
+    a.should == [-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5]
+
+    a = []
+    ('A'..'D').each { |i| a << i }
+    a.should == ['A','B','C','D']
+
+    a = []
+    ('A'...'D').each { |i| a << i }
+    a.should == ['A','B','C']
+
+    a = []
+    (0xfffd...0xffff).each { |i| a << i }
+    a.should == [0xfffd, 0xfffe]
+
+    y = mock('y')
+    x = mock('x')
+    x.should_receive(:<=>).with(y).any_number_of_times.and_return(-1)
+    x.should_receive(:<=>).with(x).any_number_of_times.and_return(0)
+    x.should_receive(:succ).any_number_of_times.and_return(y)
+    y.should_receive(:<=>).with(x).any_number_of_times.and_return(1)
+    y.should_receive(:<=>).with(y).any_number_of_times.and_return(0)
+
+    a = []
+    (x..y).each { |i| a << i }
+    a.should == [x, y]
+  end
+
+  it "works for non-ASCII ranges" do
+    a = []
+    ('Σ'..'Ω').each { |i| a << i }
+    a.should == ["Σ", "Τ", "Υ", "Φ", "Χ", "Ψ", "Ω"]
+  end
+
+  it "works with endless ranges" do
+    a = []
+    (-2..).each { |x| break if x > 2; a << x }
+    a.should == [-2, -1, 0, 1, 2]
+
+    a = []
+    (-2...).each { |x| break if x > 2; a << x }
+    a.should == [-2, -1, 0, 1, 2]
+  end
+
+  it "works with String endless ranges" do
+    a = []
+    ('A'..).each { |x| break if x > "D"; a << x }
+    a.should == ["A", "B", "C", "D"]
+
+    a = []
+    ('A'...).each { |x| break if x > "D"; a << x }
+    a.should == ["A", "B", "C", "D"]
+  end
+
+  it "raises a TypeError beginless ranges" do
+    -> { (..2).each { |x| x } }.should.raise(TypeError)
+  end
+
+  it "raises a TypeError if the first element does not respond to #succ" do
+    -> { (0.5..2.4).each { |i| i } }.should.raise(TypeError)
+
+    b = mock('x')
+    (a = mock('1')).should_receive(:<=>).with(b).and_return(1)
+
+    -> { (a..b).each { |i| i } }.should.raise(TypeError)
+  end
+
+  it "returns self" do
+    range = 1..10
+    range.each{}.should.equal?(range)
+  end
+
+  it "returns an enumerator when no block given" do
+    enum = (1..3).each
+    enum.should.instance_of?(Enumerator)
+    enum.to_a.should == [1, 2, 3]
+  end
+
+  it "supports Time objects that respond to #succ" do
+    t = Time.utc(1970)
+    def t.succ; self + 1 end
+    t_succ = t.succ
+    def t_succ.succ; self + 1; end
+
+    (t..t_succ).to_a.should == [Time.utc(1970), Time.utc(1970, nil, nil, nil, nil, 1)]
+    (t...t_succ).to_a.should == [Time.utc(1970)]
+  end
+
+  it "passes each Symbol element by using #succ" do
+    (:aa..:ac).each.to_a.should == [:aa, :ab, :ac]
+    (:aa...:ac).each.to_a.should == [:aa, :ab]
+  end
+
+  it_behaves_like :enumeratorized_with_origin_size, :each, (1..3)
+end