1 files changed, 121 insertions, 0 deletions
diff --git a/spec/ruby/core/enumerable/all_spec.rb b/spec/ruby/core/enumerable/all_spec.rb
new file mode 100644
index 0000000000..bfde584260
--- /dev/null
+++ b/spec/ruby/core/enumerable/all_spec.rb
@@ -0,0 +1,121 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/classes', __FILE__)
+
+describe "Enumerable#all?" do
+
+  before :each do
+    @enum = EnumerableSpecs::Numerous.new
+    @empty = EnumerableSpecs::Empty.new()
+    @enum1 = [0, 1, 2, -1]
+    @enum2 = [nil, false, true]
+  end
+
+  it "always returns true on empty enumeration" do
+    @empty.all?.should == true
+    @empty.all? { nil }.should == true
+
+    [].all?.should == true
+    [].all? { false }.should == true
+
+    {}.all?.should == true
+    {}.all? { nil }.should == true
+  end
+
+  it "does not hide exceptions out of #each" do
+    lambda {
+      EnumerableSpecs::ThrowingEach.new.all?
+    }.should raise_error(RuntimeError)
+
+    lambda {
+      EnumerableSpecs::ThrowingEach.new.all? { false }
+    }.should raise_error(RuntimeError)
+  end
+
+  describe "with no block" do
+    it "returns true if no elements are false or nil" do
+      @enum.all?.should == true
+      @enum1.all?.should == true
+      @enum2.all?.should == false
+
+      EnumerableSpecs::Numerous.new('a','b','c').all?.should == true
+      EnumerableSpecs::Numerous.new(0, "x", true).all?.should == true
+    end
+
+    it "returns false if there are false or nil elements" do
+      EnumerableSpecs::Numerous.new(false).all?.should == false
+      EnumerableSpecs::Numerous.new(false, false).all?.should == false
+
+      EnumerableSpecs::Numerous.new(nil).all?.should == false
+      EnumerableSpecs::Numerous.new(nil, nil).all?.should == false
+
+      EnumerableSpecs::Numerous.new(1, nil, 2).all?.should == false
+      EnumerableSpecs::Numerous.new(0, "x", false, true).all?.should == false
+      @enum2.all?.should == false
+    end
+
+    it "gathers whole arrays as elements when each yields multiple" do
+      multi = EnumerableSpecs::YieldsMultiWithFalse.new
+      multi.all?.should be_true
+    end
+
+  end
+
+  describe "with block" do
+    it "returns true if the block never returns false or nil" do
+      @enum.all? { true }.should == true
+      @enum1.all?{ |o| o < 5 }.should == true
+      @enum1.all?{ |o| 5 }.should == true
+    end
+
+    it "returns false if the block ever returns false or nil" do
+      @enum.all? { false }.should == false
+      @enum.all? { nil }.should == false
+      @enum1.all?{ |o| o > 2 }.should == false
+
+      EnumerableSpecs::Numerous.new.all? { |i| i > 5 }.should == false
+      EnumerableSpecs::Numerous.new.all? { |i| i == 3 ? nil : true }.should == false
+    end
+
+    it "stops iterating once the return value is determined" do
+      yielded = []
+      EnumerableSpecs::Numerous.new(:one, :two, :three).all? do |e|
+        yielded << e
+        false
+      end.should == false
+      yielded.should == [:one]
+
+      yielded = []
+      EnumerableSpecs::Numerous.new(true, true, false, true).all? do |e|
+        yielded << e
+        e
+      end.should == false
+      yielded.should == [true, true, false]
+
+      yielded = []
+      EnumerableSpecs::Numerous.new(1, 2, 3, 4, 5).all? do |e|
+        yielded << e
+        e
+      end.should == true
+      yielded.should == [1, 2, 3, 4, 5]
+    end
+
+    it "does not hide exceptions out of the block" do
+      lambda {
+        @enum.all? { raise "from block" }
+      }.should raise_error(RuntimeError)
+    end
+
+    it "gathers initial args as elements when each yields multiple" do
+      multi = EnumerableSpecs::YieldsMulti.new
+      multi.all? {|e| !(Array === e) }.should be_true
+    end
+
+    it "yields multiple arguments when each yields multiple" do
+      multi = EnumerableSpecs::YieldsMulti.new
+      yielded = []
+      multi.all? {|e, i| yielded << [e, i] }
+      yielded.should == [[1, 2], [3, 4], [6, 7]]
+    end
+
+  end
+end