[poincare] DRY-up the Complex::convertFloatToText tests

Change-Id: Ie3a44c288832ec5153fe0ed7d3de094d3dcf519a
This commit is contained in:
Romain Goyet
2017-05-04 00:12:18 +02:00
committed by Émilie Feral
parent 8564d67efd
commit 38596fbedd

View File

@@ -2,66 +2,68 @@
#include <poincare.h>
#include <string.h>
#include <ion.h>
#include <stdlib.h>
#include <assert.h>
using namespace Poincare;
constexpr Expression::FloatDisplayMode Decimal = Expression::FloatDisplayMode::Decimal;
constexpr Expression::FloatDisplayMode Scientific = Expression::FloatDisplayMode::Scientific;
void assert_float_converts_to(float f, const char * result, Expression::FloatDisplayMode mode = Scientific, int significantDigits = 7, int bufferSize = 14) {
int tagSize = 8;
unsigned char tag = 'X';
char * taggedBuffer = (char *)malloc(bufferSize+2*tagSize);
memset(taggedBuffer, tag, bufferSize+2*tagSize);
char * buffer = taggedBuffer + tagSize;
Complex::convertFloatToText(f, buffer, bufferSize, significantDigits, mode);
for (int i=0; i<tagSize; i++) {
assert(taggedBuffer[i] == tag);
}
for (int i=tagSize+strlen(buffer)+1; i<bufferSize+2*tagSize; i++) {
assert(taggedBuffer[i] == tag);
}
for (int i=0; i<bufferSize; i++) {
if (buffer[i] == Ion::Charset::Exponent) {
buffer[i] = 'E';
}
}
assert(strcmp(buffer, result) == 0);
free(taggedBuffer);
}
QUIZ_CASE(poincare_complex_to_text) {
char buffer[14];
Complex::convertFloatToText(123.456f,buffer, 14, 7, Expression::FloatDisplayMode::Scientific);
char result1[20] = {'1','.','2','3','4','5','6',Ion::Charset::Exponent,'2',0};
assert(strcmp(buffer, result1) == 0);
Complex::convertFloatToText(1.234567891011f,buffer, 14, 7, Expression::FloatDisplayMode::Scientific);
char result2[20] = {'1','.','2','3','4','5','6','8',0};
assert(strcmp(buffer, result2) == 0);
Complex::convertFloatToText(2.0f, buffer, 14, 7, Expression::FloatDisplayMode::Scientific);
char result3[20] = {'2',0};
assert(strcmp(buffer, result3) == 0);
Complex::convertFloatToText(123456789.0f, buffer, 14, 7, Expression::FloatDisplayMode::Scientific);
char result4[20] = {'1','.','2','3','4','5','6','8',Ion::Charset::Exponent,'8',0};
assert(strcmp(buffer, result4) == 0);
Complex::convertFloatToText(0.00000123456789f, buffer, 14, 7, Expression::FloatDisplayMode::Scientific);
char result5[20] = {'1','.','2','3','4','5','6','8',Ion::Charset::Exponent,'-','6',0};
assert(strcmp(buffer, result5) == 0);
Complex::convertFloatToText(0.99f, buffer, 14, 7, Expression::FloatDisplayMode::Scientific);
char result6[20] = {'9','.','9',Ion::Charset::Exponent,'-','1',0};
assert(strcmp(buffer, result6) == 0);
Complex::convertFloatToText(-123.456789f, buffer, 14, 7, Expression::FloatDisplayMode::Scientific);
char result7[20] = {'-','1','.','2','3','4','5','6','8',Ion::Charset::Exponent,'2',0};
assert(strcmp(buffer, result7) == 0);
Complex::convertFloatToText(-0.000123456789f, buffer, 14, 7, Expression::FloatDisplayMode::Scientific);
char result8[20] = {'-','1','.','2','3','4','5','6','8',Ion::Charset::Exponent,'-','4',0};
assert(strcmp(buffer, result8) == 0);
Complex::convertFloatToText(0.0f, buffer, 14, 7, Expression::FloatDisplayMode::Scientific);
char result9[20] = {'0',0};
assert(strcmp(buffer, result9) == 0);
Complex::convertFloatToText(10000000000000000000000000000.0f, buffer, 14, 7, Expression::FloatDisplayMode::Scientific);
char result10[20] = {'1',Ion::Charset::Exponent,'2','8',0};
assert(strcmp(buffer, result10) == 0);
Complex::convertFloatToText(10000000000000000000000000000.0f, buffer, 14, 7, Expression::FloatDisplayMode::Decimal);
assert(strcmp(buffer, result10) == 0);
Complex::convertFloatToText(1000000.0f, buffer, 14, 7, Expression::FloatDisplayMode::Decimal);
assert(strcmp(buffer, "1000000") == 0);
Complex::convertFloatToText(10000000.0f, buffer, 14, 7, Expression::FloatDisplayMode::Decimal);
char result11[20] = {'1',Ion::Charset::Exponent,'7',0};
assert(strcmp(buffer, result11) == 0);
Complex::convertFloatToText(0.000001f, buffer, 14, 7, Expression::FloatDisplayMode::Decimal);
assert(strcmp(buffer, "0.000001") == 0);
Complex::convertFloatToText(0.0000001f, buffer, 14, 7, Expression::FloatDisplayMode::Decimal);
char result12[20] = {'1',Ion::Charset::Exponent,'-','7',0};
assert(strcmp(buffer, result12) == 0);
char buffer2[6];
Complex::convertFloatToText(123.421f, buffer2, 6, 4, Expression::FloatDisplayMode::Decimal);
assert(strcmp(buffer2, "123.4") == 0);
char buffer3[6];
Complex::convertFloatToText(123.421f, buffer3, 6, 5, Expression::FloatDisplayMode::Decimal);
char result13[20] = {'1','.','2',Ion::Charset::Exponent,'2',0};
assert(strcmp(buffer3, result13) == 0);
assert_float_converts_to(123.456f, "1.23456E2"); //FIXME: Only 6 significant digits?
assert_float_converts_to(1.234567891011f, "1.234568");
assert_float_converts_to(2.0f, "2");
assert_float_converts_to(123456789.0f, "1.234568E8");
assert_float_converts_to(0.00000123456789f, "1.234568E-6");
assert_float_converts_to(0.99f, "9.9E-1");
assert_float_converts_to(-123.456789f, "-1.234568E2");
assert_float_converts_to(-0.000123456789f, "-1.234568E-4");
assert_float_converts_to(0.0f, "0");
assert_float_converts_to(10000000000000000000000000000.0f, "1E28");
assert_float_converts_to(10000000000000000000000000000.0f, "1E28", Decimal); // FIXME: Explain. Would overflow?
assert_float_converts_to(1000000.0f, "1000000", Decimal);
assert_float_converts_to(10000000.0f, "1E7", Decimal);
assert_float_converts_to(0.000001f, "0.000001", Decimal);
assert_float_converts_to(0.0000001f, "1E-7", Decimal); // FIXME: Explain. Would overflow?
// CRASH!! assert_float_converts_to(-0.00000000000000000000000000000000909090964f, "WHATEVER", Decimal);
assert_float_converts_to(123.421f, "123.4", Decimal, 4, 6);
assert_float_converts_to(123.421f, "1.2E2", Decimal, 5, 6);
}
Complex::Cartesian(1.0f, 2.0f).writeTextInBuffer(buffer, 14);
char text1[14] = {'1','+', '2', '*', Ion::Charset::IComplex, 0};
QUIZ_CASE(poincare_complex_cartesian_to_text) {
constexpr int bufferSize = 14;
char buffer[bufferSize] = {0};
Complex::Cartesian(1.0f, 2.0f).writeTextInBuffer(buffer, bufferSize);
char text1[bufferSize] = {'1','+', '2', '*', Ion::Charset::IComplex, 0};
assert(strcmp(buffer, text1) == 0);
Complex::Cartesian(-1.3f, 2.444f).writeTextInBuffer(buffer, 14);
Complex::Cartesian(-1.3f, 2.444f).writeTextInBuffer(buffer, bufferSize);
char text2[14] = {'-','1','.','3','+', '2','.','4','4','4', '*', Ion::Charset::IComplex, 0};
assert(strcmp(buffer, text2) == 0);
Complex::Cartesian(-1.3f, -2.444f).writeTextInBuffer(buffer, 14);