helper.cpp
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#include <quiz.h>
#include <poincare.h>
#include <string.h>
#include <ion.h>
#include <stdlib.h>
#include <assert.h>
#include <cmath>
#if POINCARE_TESTS_PRINT_EXPRESSIONS
#include "../src/expression_debug.h"
#include <iostream>
using namespace std;
#endif
using namespace Poincare;
void translate_in_special_chars(char * expression) {
for (char *c = expression; *c; c++) {
switch (*c) {
case 'E': *c = Ion::Charset::Exponent; break;
case 'X': *c = Ion::Charset::Exponential; break;
case 'I': *c = Ion::Charset::IComplex; break;
case 'R': *c = Ion::Charset::Root; break;
case 'P': *c = Ion::Charset::SmallPi; break;
case '*': *c = Ion::Charset::MultiplicationSign; break;
case '>': *c = Ion::Charset::Sto; break;
}
}
}
void translate_in_ASCII_chars(char * expression) {
for (char *c = expression; *c; c++) {
switch (*c) {
case Ion::Charset::Exponent: *c = 'E'; break;
case Ion::Charset::Exponential: *c = 'X'; break;
case Ion::Charset::IComplex: *c = 'I'; break;
case Ion::Charset::Root: *c = 'R'; break;
case Ion::Charset::SmallPi: *c = 'P'; break;
case Ion::Charset::MultiplicationSign: *c = '*'; break;
case Ion::Charset::Sto: *c = '>'; break;
}
}
}
Expression * parse_expression(const char * expression) {
quiz_print(expression);
char buffer[200];
strlcpy(buffer, expression, sizeof(buffer));
translate_in_special_chars(buffer);
Expression * result = Expression::parse(buffer);
assert(result);
return result;
}
void assert_parsed_expression_type(const char * expression, Poincare::Expression::Type type) {
Expression * e = parse_expression(expression);
assert(e->type() == type);
delete e;
}
template<typename T>
void assert_parsed_expression_evaluates_to(const char * expression, Complex<T> * results, int numberOfRows, int numberOfColumns, Expression::AngleUnit angleUnit) {
GlobalContext globalContext;
Expression * a = parse_expression(expression);
Expression * m = a->approximate<T>(globalContext, angleUnit);
assert(m);
assert(m->numberOfOperands() == 0 || m->numberOfOperands() == numberOfRows*numberOfColumns);
if (m->type() == Expression::Type::Matrix) {
assert(static_cast<Matrix *>(m)->numberOfRows() == numberOfRows);
assert(static_cast<Matrix *>(m)->numberOfColumns() == numberOfColumns);
for (int i = 0; i < m->numberOfOperands(); i++) {
assert(std::fabs(static_cast<const Complex<T> *>(m->operand(i))->a() - results[i].a()) < 0.0001f);
assert(std::fabs(static_cast<const Complex<T> *>(m->operand(i))->b() - results[i].b()) < 0.0001f);
}
} else {
assert(std::fabs(static_cast<const Complex<T> *>(m)->a() - results[0].a()) < 0.0001f);
assert(std::fabs(static_cast<const Complex<T> *>(m)->b() - results[0].b()) < 0.0001f);
}
delete a;
delete m;
}
void assert_parsed_expression_simplify_to(const char * expression, const char * simplifiedExpression, Expression::AngleUnit angleUnit) {
GlobalContext globalContext;
Expression * e = parse_expression(expression);
#if POINCARE_TESTS_PRINT_EXPRESSIONS
cout << "---- Simplify: " << expression << "----" << endl;
#endif
Expression::Simplify(&e, globalContext, angleUnit);
char buffer[500];
e->writeTextInBuffer(buffer, sizeof(buffer));
translate_in_ASCII_chars(buffer);
#if POINCARE_TESTS_PRINT_EXPRESSIONS
print_expression(e, 0);
cout << "---- serialize to: " << buffer << " ----" << endl;
cout << "----- compared to: " << simplifiedExpression << " ----\n" << endl;
#endif
assert(strcmp(buffer, simplifiedExpression) == 0);
delete e;
}
template void assert_parsed_expression_evaluates_to<float>(char const*, Poincare::Complex<float>*, int, int, Poincare::Expression::AngleUnit);
template void assert_parsed_expression_evaluates_to<double>(char const*, Poincare::Complex<double>*, int, int, Poincare::Expression::AngleUnit);