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GDevelop/Core/tests/ExpressionParser2.cpp
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/*
* GDevelop Core
* Copyright 2008-2016 Florian Rival (Florian.Rival@gmail.com). All rights
* reserved. This project is released under the MIT License.
*/
#include "GDCore/Events/Parsers/ExpressionParser2.h"
#include "DummyPlatform.h"
#include "GDCore/Extensions/Platform.h"
#include "GDCore/Extensions/PlatformExtension.h"
#include "GDCore/IDE/Events/ExpressionValidator.h"
#include "GDCore/Project/Layout.h"
#include "GDCore/Project/Project.h"
#include "catch.hpp"
TEST_CASE("ExpressionParser2", "[common][events]") {
gd::Project project;
gd::Platform platform;
SetupProjectWithDummyPlatform(project, platform);
auto &layout1 = project.InsertNewLayout("Layout1", 0);
layout1.InsertNewObject(project, "MyExtension::Sprite", "MySpriteObject", 0);
gd::ExpressionParser2 parser(platform, project, layout1);
SECTION("Valid texts") {
{
auto node = parser.ParseExpression("string", "\"hello world\"");
REQUIRE(node != nullptr);
auto &textNode = dynamic_cast<gd::TextNode &>(*node);
REQUIRE(textNode.text == "hello world");
}
{
auto node = parser.ParseExpression("string", "\"\"");
REQUIRE(node != nullptr);
auto &textNode = dynamic_cast<gd::TextNode &>(*node);
REQUIRE(textNode.text == "");
}
{
auto node = parser.ParseExpression("string", "\"hello \\\"world\\\"\"");
REQUIRE(node != nullptr);
auto &textNode = dynamic_cast<gd::TextNode &>(*node);
REQUIRE(textNode.text == "hello \"world\"");
}
}
SECTION("Invalid texts") {
{
auto node = parser.ParseExpression("string", "");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"You must enter a text, number or a valid expression call.");
}
{
auto node = parser.ParseExpression("string", "abcd");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"You must wrap your text inside double quotes (example: \"Hello "
"world\").");
}
{
auto node = parser.ParseExpression("string", "123");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"You entered a number, but a text was expected (in quotes).");
}
{
auto node = parser.ParseExpression("string", "abcd efgh");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"You must wrap your text inside double quotes (example: \"Hello "
"world\").");
REQUIRE(validator.GetErrors()[0]->GetStartPosition() == 0);
REQUIRE(validator.GetErrors()[0]->GetEndPosition() == 9);
}
{
auto node = parser.ParseExpression("string", "abcd + efgh");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 2);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"You must wrap your text inside double quotes (example: \"Hello "
"world\").");
REQUIRE(validator.GetErrors()[1]->GetMessage() ==
"You must wrap your text inside double quotes (example: \"Hello "
"world\").");
}
{
auto node = parser.ParseExpression("string", "\"");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"A text must end with a double quote (\"). Add a double quote to "
"terminate the text.");
REQUIRE(validator.GetErrors()[0]->GetStartPosition() == 1);
}
{
auto node = parser.ParseExpression("string", "\"hello world");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"A text must end with a double quote (\"). Add a double quote to "
"terminate the text.");
REQUIRE(validator.GetErrors()[0]->GetStartPosition() == 12);
}
{
auto node = parser.ParseExpression("string", "\"\"\"");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"You must add the operator + between texts or expressions. For "
"example: \"Your name: \" + VariableString(PlayerName).");
REQUIRE(validator.GetErrors()[0]->GetStartPosition() == 2);
}
}
SECTION("Invalid parenthesis") {
{
auto node = parser.ParseExpression("string", "((\"hello\"");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 2);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"Missing a closing parenthesis. Add a closing parenthesis for each opening parenthesis.");
REQUIRE(validator.GetErrors()[1]->GetMessage() ==
"Missing a closing parenthesis. Add a closing parenthesis for each opening parenthesis.");
}
}
SECTION("Invalid text operators") {
{
auto node = parser.ParseExpression("string", "\"Hello \" - \"World\"");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"You've used an operator that is not supported. Only + can be "
"used to concatenate texts.");
REQUIRE(validator.GetErrors()[0]->GetStartPosition() == 9);
}
}
SECTION("Valid numbers") {
{
auto node = parser.ParseExpression("number", "123");
REQUIRE(node != nullptr);
auto &numberNode = dynamic_cast<gd::NumberNode &>(*node);
REQUIRE(numberNode.number == "123");
}
{
auto node = parser.ParseExpression("number", "-123");
REQUIRE(node != nullptr);
auto &numberNode = dynamic_cast<gd::NumberNode &>(*node);
REQUIRE(numberNode.number == "-123");
}
{
auto node = parser.ParseExpression("number", "+123");
REQUIRE(node != nullptr);
auto &numberNode = dynamic_cast<gd::NumberNode &>(*node);
REQUIRE(numberNode.number == "123");
}
{
auto node = parser.ParseExpression("number", "3.14159");
REQUIRE(node != nullptr);
auto &numberNode = dynamic_cast<gd::NumberNode &>(*node);
REQUIRE(numberNode.number == "3.14159");
}
{
auto node = parser.ParseExpression("number", ".14159");
REQUIRE(node != nullptr);
auto &numberNode = dynamic_cast<gd::NumberNode &>(*node);
REQUIRE(numberNode.number == ".14159");
}
{
auto node = parser.ParseExpression("number", "-123.2");
REQUIRE(node != nullptr);
auto &numberNode = dynamic_cast<gd::NumberNode &>(*node);
REQUIRE(numberNode.number == "-123.2");
}
{
auto node = parser.ParseExpression("number", "3.");
REQUIRE(node != nullptr);
auto &numberNode = dynamic_cast<gd::NumberNode &>(*node);
REQUIRE(numberNode.number == "3.");
}
}
SECTION("Invalid numbers") {
{
auto node = parser.ParseExpression("number", "abcd");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"You must enter a number.");
REQUIRE(validator.GetErrors()[0]->GetStartPosition() == 0);
}
{
auto node = parser.ParseExpression("number", "\"hello world\"");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"You entered a text, but a number was expected.");
REQUIRE(validator.GetErrors()[0]->GetStartPosition() == 0);
REQUIRE(validator.GetErrors()[0]->GetEndPosition() == 13);
}
{
auto node = parser.ParseExpression("number", "123 456");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"No operator found. Did you forget to enter an operator (like +, "
"-, * or /) between numbers or expressions?");
REQUIRE(validator.GetErrors()[0]->GetStartPosition() == 4);
}
{
auto node = parser.ParseExpression("number", "3..14");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"No operator found. Did you forget to enter an operator (like +, "
"-, * or /) between numbers or expressions?");
REQUIRE(validator.GetErrors()[0]->GetStartPosition() == 2);
}
}
SECTION("Invalid number operators") {
{
auto node = parser.ParseExpression("number", "123 % 456");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"No operator found. Did you forget to enter an operator (like +, "
"-, * or /) between numbers or expressions?");
REQUIRE(validator.GetErrors()[0]->GetStartPosition() == 4);
}
}
SECTION("Numbers and texts mismatchs") {
{
auto node = parser.ParseExpression("number", "123 + \"hello world\"");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"You entered a text, but a number was expected.");
REQUIRE(validator.GetErrors()[0]->GetStartPosition() == 6);
REQUIRE(validator.GetErrors()[0]->GetEndPosition() == 19);
}
{
auto node = parser.ParseExpression("string", "\"hello world\" + 123");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"You entered a number, but a text was expected (in quotes).");
REQUIRE(validator.GetErrors()[0]->GetStartPosition() == 16);
REQUIRE(validator.GetErrors()[0]->GetEndPosition() == 19);
}
}
SECTION("Numbers and texts mismatchs with parenthesis") {
{
auto node =
parser.ParseExpression("number", "((123)) + (\"hello world\")");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"You entered a text, but a number was expected.");
REQUIRE(validator.GetErrors()[0]->GetStartPosition() == 11);
REQUIRE(validator.GetErrors()[0]->GetEndPosition() == 24);
}
{
auto node =
parser.ParseExpression("string", "((\"hello world\") + (123))");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"You entered a number, but a text was expected (in quotes).");
REQUIRE(validator.GetErrors()[0]->GetStartPosition() == 20);
REQUIRE(validator.GetErrors()[0]->GetEndPosition() == 23);
}
}
SECTION("Valid identifiers") {
{
auto node = parser.ParseExpression("identifier", "HelloWorld1");
REQUIRE(node != nullptr);
auto &identifierNode = dynamic_cast<gd::IdentifierNode &>(*node);
REQUIRE(identifierNode.identifierName == "HelloWorld1");
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 0);
}
{
auto node = parser.ParseExpression("identifier", "Hello World 1 ");
REQUIRE(node != nullptr);
auto &identifierNode = dynamic_cast<gd::IdentifierNode &>(*node);
REQUIRE(identifierNode.identifierName == "Hello World 1");
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 0);
}
}
SECTION("Invalid identifiers") {
{
auto node = parser.ParseExpression("identifier", "Hello + World1");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"Operators (+, -, /, *) should not be used there.");
}
}
SECTION("Valid function calls") {
{
auto node = parser.ParseExpression("number", "MyExtension::GetNumber()");
REQUIRE(node != nullptr);
auto &functionNode = dynamic_cast<gd::FunctionNode &>(*node);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 0);
}
{
auto node = parser.ParseExpression(
"number", "MyExtension::GetNumberWith2Params(12, \"hello world\")");
REQUIRE(node != nullptr);
auto &functionNode = dynamic_cast<gd::FunctionNode &>(*node);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 0);
}
{
auto node = parser.ParseExpression(
"number", "MyExtension::GetNumberWith3Params(12, \"hello world\")");
REQUIRE(node != nullptr);
auto &functionNode = dynamic_cast<gd::FunctionNode &>(*node);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 0);
}
{
auto node = parser.ParseExpression(
"number",
"MyExtension::GetNumberWith3Params(12, \"hello world\", 34)");
REQUIRE(node != nullptr);
auto &functionNode = dynamic_cast<gd::FunctionNode &>(*node);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 0);
}
{
auto node =
parser.ParseExpression("number", "MySpriteObject.GetObjectNumber()");
REQUIRE(node != nullptr);
auto &functionNode = dynamic_cast<gd::FunctionNode &>(*node);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 0);
}
}
SECTION("Invalid function calls") {
{
auto node = parser.ParseExpression("number", "Idontexist(12)");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 2);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"Cannot find an expression with this name: Idontexist\nDouble "
"check that you've not made any typo in the name.");
REQUIRE(validator.GetErrors()[0]->GetStartPosition() == 0);
REQUIRE(validator.GetErrors()[0]->GetEndPosition() == 14);
REQUIRE(validator.GetErrors()[1]->GetMessage() ==
"This parameter was not expected by this expression. Remove it "
"or verify that you've entered the proper expression name.");
}
{
auto node =
parser.ParseExpression("number", "MyExtension::GetNumber(12)");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"This parameter was not expected by this expression. Remove it "
"or verify that you've entered the proper expression name.");
REQUIRE(validator.GetErrors()[0]->GetStartPosition() == 23);
REQUIRE(validator.GetErrors()[0]->GetEndPosition() == 25);
}
{
auto node = parser.ParseExpression(
"number", "MyExtension::GetNumberWith2Params(12)");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"You have not entered enough parameters for the expression. The "
"number of parameters must be exactly 2");
REQUIRE(validator.GetErrors()[0]->GetStartPosition() == 0);
REQUIRE(validator.GetErrors()[0]->GetEndPosition() == 37);
}
{
auto node = parser.ParseExpression(
"number", "MyExtension::GetNumberWith2Params(1, 1)");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"You entered a number, but a text was expected (in quotes).");
REQUIRE(validator.GetErrors()[0]->GetStartPosition() == 37);
REQUIRE(validator.GetErrors()[0]->GetEndPosition() == 38);
}
{
auto node = parser.ParseExpression("number",
"MySpriteObject.GetObjectNumber(12)");
REQUIRE(node != nullptr);
gd::ExpressionValidator validator;
node->Visit(validator);
REQUIRE(validator.GetErrors().size() == 1);
REQUIRE(validator.GetErrors()[0]->GetMessage() ==
"This parameter was not expected by this expression. Remove it "
"or verify that you've entered the proper expression name.");
REQUIRE(validator.GetErrors()[0]->GetStartPosition() == 31);
REQUIRE(validator.GetErrors()[0]->GetEndPosition() == 33);
}
}
SECTION("Valid variables") {
{
auto node = parser.ParseExpression("variable", "myVariable");
REQUIRE(node != nullptr);
auto &variableNode = dynamic_cast<gd::VariableNode &>(*node);
REQUIRE(variableNode.name == "myVariable");
}
{
auto node = parser.ParseExpression("variable", "myVariable.myChild");
REQUIRE(node != nullptr);
auto &variableNode = dynamic_cast<gd::VariableNode &>(*node);
REQUIRE(variableNode.name == "myVariable");
REQUIRE(variableNode.child != nullptr);
auto &childNode =
dynamic_cast<gd::VariableAccessorNode &>(*variableNode.child);
REQUIRE(childNode.name == "myChild");
}
{
auto node = parser.ParseExpression(
"variable", "myVariable[ \"My named children\" ]");
REQUIRE(node != nullptr);
auto &variableNode = dynamic_cast<gd::VariableNode &>(*node);
REQUIRE(variableNode.name == "myVariable");
REQUIRE(variableNode.child != nullptr);
auto &childNode =
dynamic_cast<gd::VariableBracketAccessorNode &>(*variableNode.child);
REQUIRE(childNode.expression != nullptr);
auto &textNode = dynamic_cast<gd::TextNode &>(*childNode.expression);
REQUIRE(textNode.text == "My named children");
}
{
auto node = parser.ParseExpression(
"variable", "myVariable[ \"My named children\" ].grandChild");
REQUIRE(node != nullptr);
auto &variableNode = dynamic_cast<gd::VariableNode &>(*node);
REQUIRE(variableNode.name == "myVariable");
REQUIRE(variableNode.child != nullptr);
auto &childNode =
dynamic_cast<gd::VariableBracketAccessorNode &>(*variableNode.child);
REQUIRE(childNode.child != nullptr);
auto &grandChildNode =
dynamic_cast<gd::VariableAccessorNode &>(*childNode.child);
REQUIRE(grandChildNode.name == "grandChild");
}
}
}
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