array_spec.rb in bindata-0.8.0

- old
+ new

@@ -31,10 +31,14 @@
 
   it "should return correct length" do
     @data.length.should be_zero
   end
 
+  it "should be empty" do
+    @data.should be_empty
+  end
+
   it "should return nil for the first element" do
     @data.first.should be_nil
   end
 
   it "should return [] for the first n elements" do
@@ -64,26 +68,34 @@
 
   it "should return a correct snapshot" do
     @data.snapshot.should eql([1, 2, 3, 4, 5])
   end
 
+  it "should coerce to ::Array if required" do
+    ((1..7).to_a - @data).should eql([6, 7])
+  end
+
   it "should return the first element" do
     @data.first.should eql(1)
   end
 
   it "should return the first n elements" do
+    @data[0...3].should eql([1, 2, 3])
     @data.first(3).should eql([1, 2, 3])
     @data.first(99).should eql([1, 2, 3, 4, 5])
   end
 
   it "should return the last element" do
     @data.last.should eql(5)
+    @data[-1].should eql(5)
   end
 
   it "should return the last n elements" do
     @data.last(3).should eql([3, 4, 5])
     @data.last(99).should eql([1, 2, 3, 4, 5])
+
+    @data[-3, 100].should eql([3, 4, 5])
   end
 
   it "should have correct num elements" do
     @data.length.should eql(5)
     @data.size.should eql(5)
@@ -104,10 +116,18 @@
   it "should be able to directly access elements" do
     @data[1] = 8
     @data[1].should eql(8)
   end
 
+  it "should not be empty" do
+    @data.should_not be_empty
+  end
+
+  it "should return a nicely formatted array  for inspect" do
+    @data.inspect.should eql("[1, 2, 3, 4, 5]")
+  end
+
   it "should be able to use methods from Enumerable" do
     @data.select { |x| (x % 2) == 0 }.should eql([2, 4])
   end
 
   it "should clear" do
@@ -166,9 +186,13 @@
     @data = BinData::Array.new(:type => type, :initial_length => 5)
   end
 
   it "should access elements, not values" do
     @data[3].a.should eql(3)
+  end
+
+  it "should access multiple elements with slice" do
+    @data.slice(2, 3).collect { |x| x.a }.should eql([2, 3, 4])
   end
 
   it "should not be able to modify elements" do
     lambda { @data[1] = 3 }.should raise_error(NoMethodError)
   end