spec/back_end/engine_spec.rb in loxxy-0.1.07 vs spec/back_end/engine_spec.rb in loxxy-0.1.08

@@ -32,13 +32,21 @@
         let(:greeting) { Datatype::LXString.new('Hello, world') }
         let(:sample_pos) { double('fake-position') }
         let(:var_decl) { Ast::LoxVarStmt.new(sample_pos, 'greeting', greeting) }
         let(:lit_expr) { Ast::LoxLiteralExpr.new(sample_pos, greeting) }
 
+        it "should react to 'before_var_stmt' event" do
+          expect { subject.before_var_stmt(var_decl) }.not_to raise_error
+          current_env = subject.symbol_table.current_env
+          expect(current_env.defns['greeting']).to be_kind_of(Variable)
+        end
 
         it "should react to 'after_var_stmt' event" do
+          # Precondition: `before_var_stmt` is called...
+          expect { subject.before_var_stmt(var_decl) }.not_to raise_error
           # Precondition: value to assign is on top of stack
           subject.stack.push(greeting)
+
           expect { subject.after_var_stmt(var_decl) }.not_to raise_error
           current_env = subject.symbol_table.current_env
           expect(current_env.defns['greeting']).to be_kind_of(Variable)
           expect(current_env.defns['greeting'].value).to eq(greeting)
         end