function_spec.rb in danica-2.4.4

- old
+ new

@@ -108,19 +108,45 @@
       end
     end
     it_behaves_like 'a generically generated function'
   end
 
+  describe '#name' do
+    let(:function) do
+      function_class.new(name: :f)
+    end
+
+    it do
+      expect(function.name).to be_a(Danica::Function::Name)
+    end
+
+    context 'when changing the function variables' do
+      it 'changes the name variables' do
+        expect do
+          function.x = 2
+        end.to change { function.name.variables.map(&:content) }
+      end
+    end
+  end
+
   describe '#describe_tex' do
     context 'when function has a name' do
       let(:function) do
         function_class.new(name: :f)
       end
 
       it 'returns the full function description' do
         expect(function.describe_tex).to eq('f(x, y) = x^{y}')
       end
+
+      context 'and one of the variables is changed' do
+        it 'uses the new variable value' do
+          expect do
+            function.y = 2
+          end.to change(function, :describe_tex).to('f(x, 2) = x^{2}')
+        end
+      end
     end
 
     context 'when a variable is set as a constant' do
       let(:function) do
         function_class.new(name: :f, x: Danica::PI)
@@ -326,10 +352,10 @@
     end
 
     describe '#variables' do
       context 'when initialized with an array of variables' do
         subject { described_class::Spatial.new(variables: variables.values) }
-        let(:expected) { variables.values.map { |v| subject.send(:wrap_value, v)} }
+        let(:expected) { variables.values.map { |v| Danica::Wrapper::Variable.new(v.is_a?(Hash) ? v : { name: v }) } }
         it do
           expect(subject.variables.compact).to eq(expected)
         end
       end
 