public void Analyze_NumberSymbol_ReturnsIdentifierNode()
        {
            SyntaxNode  node        = new IdentifierNode("x");
            Environment environment = new Environment();

            environment.AddValue("x", 2);

            node = SemanticAnalyzer.Analyze(node, environment);

            Assert.AreEqual("x", node.ToString());
        }
Exemplo n.º 2
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        public void GetVariable_Number_ReturnsEnvironmentVariable()
        {
            Environment environment = new Environment();

            environment.AddValue("x", 1);

            EnvironmentVariable variable = environment.Get("x");

            Assert.AreEqual(EnvironmentVariableType.Number, variable.Type);
            Assert.AreEqual(1, variable.Value);
        }
Exemplo n.º 3
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        public void AddValue_AlreadyDefinedSymbol_ThrowsException()
        {
            Environment environment = new Environment();

            environment.AddValue("x", 2);

            DefinedSymbolException exception = Assert.Throws <DefinedSymbolException>(() => {
                environment.AddSymbol("x");
            });

            Assert.AreEqual("Symbol x has already been defined", exception.Message);
        }
        public void Analyze_AmbigiousValueDistribution_ReturnsOperatorNode()
        {
            IdentifierNode left  = new IdentifierNode("x");
            SyntaxNode     right = new NumberNode(1);
            SyntaxNode     root  = new FunctionOrDistributionNode(left, right);

            Environment environment = new Environment();

            environment.AddValue("x", 2);

            root = SemanticAnalyzer.Analyze(root, environment);

            Assert.AreEqual("x * 1", root.ToString());
        }