test/ParseExpressionTests.cpp - main - thomas-king/SyntacticAnalyzer

test/ParseExpressionTests.cpp
169 строк6 KB
Ace Rodstin
Add ParseExpressionTests. Fix parenthesis parsing.
06 апр 2023, 13:52
06 апр 2023, 13:52760e23e
//
//  ParseExpressionTests.cpp
//  Tests
//
//  Created by Ace Rodstin on 4/6/23.
//  Copyright © 2023 Ace Rodstin. All rights reserved.
//

#include "gtest/gtest.h"
#include "Services/SyntacticAnalyzer.h"

using namespace std;
using namespace ace;

TEST(ParseExpressionTests, when_parseIntegerLiteral_then_treeCorrect) {
	// Given
	string source = "val value = 1";
	auto expected = "1";

	// When
	TokensParser tokensParser { source };
	SyntacticAnalyzer syntacticAnalyzer { tokensParser };

	auto statement = syntacticAnalyzer.parse();
	auto declaration = statement->getDeclaration();
	auto constantDeclaration = declaration->getConstantDeclaration();
	auto constantSpecification = constantDeclaration->getConstantSpecification();
	auto expression = constantSpecification->getExpression();
	auto unaryExpression = dynamic_cast<const UnaryExpression*>(expression);
	auto primaryExpression = unaryExpression->getPrimaryExpression();
	auto operand = primaryExpression->getOperand();
	auto literal = operand->getLiteral();
	auto output = literal->getLiteral();

	// Then
	EXPECT_EQ(output, expected);
}

TEST(ParseExpressionTests, when_parseLiteralInParenthesis_then_treeCorrect) {
	// Given
	string source = "val value = (1)";
	auto expected = "1";

	// When
	TokensParser tokensParser { source };
	SyntacticAnalyzer syntacticAnalyzer { tokensParser };

	auto statement = syntacticAnalyzer.parse();
	auto declaration = statement->getDeclaration();
	auto constantDeclaration = declaration->getConstantDeclaration();
	auto constantSpecification = constantDeclaration->getConstantSpecification();
	auto expression = constantSpecification->getExpression();
	auto unaryExpression = dynamic_cast<const UnaryExpression*>(expression);
	auto primaryExpression = unaryExpression->getPrimaryExpression();
	auto operand = primaryExpression->getOperand();
	expression = operand->getExpression();
	unaryExpression = dynamic_cast<const UnaryExpression*>(expression);
	primaryExpression = unaryExpression->getPrimaryExpression();
	operand = primaryExpression->getOperand();
	auto literal = operand->getLiteral();
	auto output = literal->getLiteral();

	// Then
	EXPECT_EQ(output, expected);
}

TEST(ParseExpressionTests, when_parseFloatLiteral_then_treeCorrect) {
	// Given
	string source = "val value = 1.5";
	auto expected = "1.5";

	// When
	TokensParser tokensParser { source };
	SyntacticAnalyzer syntacticAnalyzer { tokensParser };

	auto statement = syntacticAnalyzer.parse();
	auto declaration = statement->getDeclaration();
	auto constantDeclaration = declaration->getConstantDeclaration();
	auto constantSpecification = constantDeclaration->getConstantSpecification();
	auto expression = constantSpecification->getExpression();
	auto unaryExpression = dynamic_cast<const UnaryExpression*>(expression);
	auto primaryExpression = unaryExpression->getPrimaryExpression();
	auto operand = primaryExpression->getOperand();
	auto literal = operand->getLiteral();
	auto output = literal->getLiteral();

	// Then
	EXPECT_EQ(output, expected);
}

TEST(ParseExpressionTests, when_parseOneAddition_then_treeCorrect) {
	// Given
	string source = "val value = 1 + 2";
	vector<string> expected = { "1", "+", "2" };

	// When
	TokensParser tokensParser { source };
	SyntacticAnalyzer syntacticAnalyzer { tokensParser };
	vector<string> output;

	auto statement = syntacticAnalyzer.parse();
	auto declaration = statement->getDeclaration();
	auto constantDeclaration = declaration->getConstantDeclaration();
	auto constantSpecification = constantDeclaration->getConstantSpecification();
	auto expression = constantSpecification->getExpression();
	auto binaryExpression = dynamic_cast<const BinaryExpression*>(expression);
	auto lhs = binaryExpression->getLhs();
	auto lhsUnaryExpression = dynamic_cast<const UnaryExpression*>(lhs);
	auto lhsPrimaryExpression = lhsUnaryExpression->getPrimaryExpression();
	auto lhsOperand = lhsPrimaryExpression->getOperand();
	auto lhsLiteral = lhsOperand->getLiteral();
	output.push_back(lhsLiteral->getLiteral());

	auto binaryOperator = binaryExpression->getBinaryOperator();
	auto op = binaryOperator->getOperator();
	output.push_back(operators.at(op));

	auto rhs = binaryExpression->getRhs();
	auto rhsUnaryExpression = dynamic_cast<const UnaryExpression*>(rhs);
	auto rhsPrimaryExpression = rhsUnaryExpression->getPrimaryExpression();
	auto rhsOperand = rhsPrimaryExpression->getOperand();
	auto rhsLiteral = rhsOperand->getLiteral();
	output.push_back(rhsLiteral->getLiteral());

	// Then
	EXPECT_EQ(output, expected);
}

TEST(ParseExpressionTests, when_parseOneAdditionInParenthesis_then_treeCorrect) {
	// Given
	string source = "val value = (1 + 2)";
	vector<string> expected = { "1", "+", "2" };

	// When
	TokensParser tokensParser { source };
	SyntacticAnalyzer syntacticAnalyzer { tokensParser };
	vector<string> output;

	auto statement = syntacticAnalyzer.parse();
	auto declaration = statement->getDeclaration();
	auto constantDeclaration = declaration->getConstantDeclaration();
	auto constantSpecification = constantDeclaration->getConstantSpecification();
	auto expression = constantSpecification->getExpression();
	auto unaryExpression = dynamic_cast<const UnaryExpression*>(expression);
	auto primaryExpression = unaryExpression->getPrimaryExpression();
	auto operand = primaryExpression->getOperand();
	expression = operand->getExpression();
	auto binaryExpression = dynamic_cast<const BinaryExpression*>(expression);
	auto lhs = binaryExpression->getLhs();
	auto lhsUnaryExpression = dynamic_cast<const UnaryExpression*>(lhs);
	auto lhsPrimaryExpression = lhsUnaryExpression->getPrimaryExpression();
	auto lhsOperand = lhsPrimaryExpression->getOperand();
	auto lhsLiteral = lhsOperand->getLiteral();
	output.push_back(lhsLiteral->getLiteral());

	auto binaryOperator = binaryExpression->getBinaryOperator();
	auto op = binaryOperator->getOperator();
	output.push_back(operators.at(op));

	auto rhs = binaryExpression->getRhs();
	auto rhsUnaryExpression = dynamic_cast<const UnaryExpression*>(rhs);
	auto rhsPrimaryExpression = rhsUnaryExpression->getPrimaryExpression();
	auto rhsOperand = rhsPrimaryExpression->getOperand();
	auto rhsLiteral = rhsOperand->getLiteral();
	output.push_back(rhsLiteral->getLiteral());

	// Then
	EXPECT_EQ(output, expected);
}