Add examples

Author: mrkn

lib/matplotlib/axis.rb

@@ -6,7 +6,7 @@ class XTick
 
   class YTick
     include PyCall::PyObjectWrapper
-    wrap_class PyCall.import_module('matplotlib.axis').XTick
+    wrap_class PyCall.import_module('matplotlib.axis').YTick
   end
 
   class XAxis
@@ -16,6 +16,6 @@ class XAxis
 
   class YAxis
     include PyCall::PyObjectWrapper
-    wrap_class PyCall.import_module('matplotlib.axis').XAxis
+    wrap_class PyCall.import_module('matplotlib.axis').YAxis
   end
 end

spec/matplotlib_spec.rb

@@ -1,7 +1,38 @@
 require "spec_helper"
 
-describe Matplotlib do
+RSpec.describe Matplotlib do
   it "has a version number" do
     expect(Matplotlib::VERSION).not_to be nil
   end
+
+  describe Matplotlib::XAxis do
+    specify do
+      fig = Matplotlib::Pyplot.figure
+      ax = fig.add_axes(PyCall.tuple(0.1, 0.2, 0.8, 0.7))
+      expect(ax.xaxis).to be_a(Matplotlib::XAxis)
+    end
+  end
+
+  describe Matplotlib::YAxis do
+    specify do
+      fig = Matplotlib::Pyplot.figure
+      ax = fig.add_axes(PyCall.tuple(0.1, 0.2, 0.8, 0.7))
+      expect(ax.yaxis).to be_a(Matplotlib::YAxis)
+    end
+  end
+
+  describe Matplotlib::Spine do
+    specify do
+      fig = Matplotlib::Pyplot.figure
+      ax = fig.add_axes(PyCall.tuple(0.1, 0.2, 0.8, 0.7))
+      expect(ax.spines['right']).to be_a(Matplotlib::Spine)
+    end
+  end
+
+  describe Matplotlib::PolarAxes do
+    specify do
+      ax = Matplotlib::Pyplot.subplot(111, projection: :polar)
+      expect(ax).to be_a(Matplotlib::PolarAxes)
+    end
+  end
 end