path_spec.rb in savage-0.2.0

- old
+ new
@@ -4,21 +4,102 @@
 
 describe Path do
   it 'should accept no parameters in a constructor for a new, empty path' do
     lambda{ Path.new }.should_not raise_error
   end
-  it 'should accept a string parameter to build a path based on existing path data' do
-    lambda{ Path.new("M100 200") }.should_not raise_error
+  it 'should be able to be constructed with a starting point (absolute move to)' do
+    path = Path.new(100,200)
+    path.subpaths.length.should == 1
+    path.subpaths.last.directions.length.should == 1
+    path.subpaths.last.directions.last.class.should == Directions::MoveTo
   end
-  it 'should raise an error if anything besides a string is passed to the constructor' do
-    lambda{ Path.new([]) }.should raise_error
-    lambda{ Path.new({}) }.should raise_error
-    lambda{ Path.new(56) }.should raise_error
-    lambda{ Path.new(Object.new) }.should raise_error
+  it 'should be able to build itself in a block' do
+    path = Path.new(100,200) do |p|
+      p.line_to 300, 400
+      p.cubic_curve_to 500,600,700,800,900,1000
+      p.arc_to 100,200,123,1,1,300,400
+    end
+    path.subpaths.last.directions[0].class.should == Directions::MoveTo
+    path.subpaths.last.directions[1].class.should == Directions::LineTo
+    path.subpaths.last.directions[2].class.should == Directions::CubicCurveTo
+    path.subpaths.last.directions[3].class.should == Directions::ArcTo
+    
+    path2 = Path.new do |p|
+      p.line_to 300, 400
+      p.cubic_curve_to 500,600,700,800,900,1000
+      p.arc_to 100,200,123,1,1,300,400
+    end
+    path2.subpaths.last.directions[0].class.should == Directions::LineTo
+    path2.subpaths.last.directions[1].class.should == Directions::CubicCurveTo
+    path2.subpaths.last.directions[2].class.should == Directions::ArcTo
   end
+  it 'should have a directions list' do
+    Path.new.respond_to?(:directions).should == true
+  end
+  it 'should have a move_to method' do
+    Path.new.respond_to?(:move_to).should == true
+  end
+  it 'should have a line_to method' do
+    Path.new.respond_to?(:line_to).should == true
+  end
+  it 'should have a horizontal_to method' do
+    Path.new.respond_to?(:horizontal_to).should == true
+  end
+  it 'should have a vertical_to method' do
+    Path.new.respond_to?(:vertical_to).should == true
+  end
+  it 'should have a quadratic_curve_to method' do
+    Path.new.respond_to?(:quadratic_curve_to).should == true
+  end
+  it 'should have a cubic_curve_to method' do
+    Path.new.respond_to?(:cubic_curve_to).should == true
+  end
+  it 'should have a arc_to method' do
+    Path.new.respond_to?(:arc_to).should == true
+  end
+  it 'should have a close_path method' do
+    Path.new.respond_to?(:close_path).should == true
+  end
+  it 'should have a closed? method' do
+    Path.new.respond_to?(:closed?).should == true
+  end
   it 'should have subpaths' do
     Path.new.respond_to?(:subpaths).should == true
   end
   it 'should have a to_command method' do
     Path.new.respond_to?(:to_command).should == true
+  end
+  describe '#move_to' do
+    it 'should create a new subpath with that movement therein if there is already a populated subpath' do
+      path = Path.new(200,300) do |p|
+        p.line_to(123,456)
+        p.close_path
+      end
+      path.move_to(200,300)
+      path.subpaths.length.should == 2
+      path.subpaths.last.directions.length.should == 1
+      path.subpaths.last.directions.last.class.should == Directions::MoveTo
+    end
+    it 'should create append the movement if the last subpath is empty a populated subpath' do
+      path = Path.new
+      path.move_to(200,300)
+      path.subpaths.length.should == 1
+      path.subpaths.last.directions.length.should == 1
+      path.subpaths.last.directions.last.class.should == Directions::MoveTo
+    end
+  end
+  describe '#to_command' do
+    it 'should concatenate all its subpaths command strings' do
+      path = Path.new(100,200) do |p|
+        p.line_to 300, 400
+        p.cubic_curve_to 500,600,700,800,900,1000
+        p.arc_to 100,200,123,1,1,300,400
+        p.close_path
+        p.move_to 499, 232
+        p.line_to 2433.4, -231
+        p.line_to -233, 122
+      end
+      concatenated = path.subpaths.collect { |subpath| subpath.to_command }.join
+      path.to_command.should == concatenated
+    end
   end
 end
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