added one test to make sure parital gets called in students show

spec/views/student_show_spec.rb

@@ -16,7 +16,7 @@
       ClassroomStudent.create(student: oldest_student, classroom: classroom)
   end
 
-  it "renders student information from the show view" do
+  it "renders student information from the classrooms show view" do
     view.lookup_context.prefixes = %w[students]
     assign(:classroom, classroom)
     assign(:student, classroom.oldest_student)
@@ -32,9 +32,17 @@
     expect(rendered).to render_template(:partial => "students/_student")
   end
 
-  it "displays the student information from the partial" do
+  it "displays the student information from the student partial" do
+    view.lookup_context.prefixes = %w[students]
     assign(:student, classroom.oldest_student)
     render :partial => "students/student.html.erb"
     expect(rendered).to match /Grandpa/
   end
+
+  it "displays the student information from students the partial" do
+    view.lookup_context.prefixes = %w[students]
+    assign(:student, classroom.oldest_student)
+    render :template => "students/show.html.erb"
+    expect(rendered).to render_template(:partial => "students/_student")
+  end
 end