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matrixTests.c aktualisiert

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John Neumeier 2025-11-14 07:14:30 +00:00
parent e42dfc938d
commit 6fa4d9c084
1 changed files with 174 additions and 52 deletions
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matrixTests.c
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#include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h>
#include "matrix.h" #include "matrix.h"
#include "unity.h"
// TODO Matrix-Funktionen implementieren ( Hauptaufgabe )
MatrixTyp erstelleMatrix(unsigned int reihen, unsigned int spalten) void test_createMatrixFailsOnZeroDimensions(void)
{ {
MatrixTyp m; Matrix matrixToTest1 = createMatrix(0, 1);
m.reihen = reihen; Matrix matrixToTest2 = createMatrix(1, 0);
m.spalten = spalten; TEST_ASSERT_NULL(matrixToTest1.buffer);
m.werte = (MatrixWert *)malloc(reihen * spalten * sizeof(MatrixWert)); TEST_ASSERT_EQUAL_UINT32(0, matrixToTest1.rows);
for (unsigned int i = 0; i < reihen * spalten; ++i) { TEST_ASSERT_EQUAL_UINT32(0, matrixToTest1.cols);
m.werte[i] = UNDEFINIERTER_MATRIXWERT; TEST_ASSERT_NULL(matrixToTest2.buffer);
} TEST_ASSERT_EQUAL_UINT32(0, matrixToTest2.rows);
return m; TEST_ASSERT_EQUAL_UINT32(0, matrixToTest2.cols);
} }
void loescheMatrix(MatrixTyp *matrix) void test_createMatrixReturnsCorrectMatrixDimensions(void)
{ {
free(matrix->werte); const unsigned int expectedRows = 15;
matrix->werte = NULL; const unsigned int expectedCols = 10;
matrix->reihen = 0;
matrix->spalten = 0; Matrix matrixToTest = createMatrix(expectedRows, expectedCols);
TEST_ASSERT_EQUAL_UINT32(expectedRows, matrixToTest.rows);
TEST_ASSERT_EQUAL_UINT32(expectedCols, matrixToTest.cols);
free(matrixToTest.buffer);
} }
void setzeMatrixWert(MatrixWert wert, MatrixTyp matrix, unsigned int reiheIndex, unsigned int spalteIndex) void test_clearMatrixSetsMembersToNull(void)
{ {
if (reiheIndex < matrix.reihen && spalteIndex < matrix.spalten) { Matrix matrixToTest = createMatrix(10, 10);
matrix.werte[reiheIndex * matrix.spalten + spalteIndex] = wert; clearMatrix(&matrixToTest);
} TEST_ASSERT_NULL(matrixToTest.buffer);
TEST_ASSERT_EQUAL_UINT32(0, matrixToTest.rows);
TEST_ASSERT_EQUAL_UINT32(0, matrixToTest.cols);
} }
MatrixWert holeMatrixWert(const MatrixTyp matrix, unsigned int reiheIndex, unsigned int spalteIndex) void test_addReturnsCorrectResult(void)
{ {
if (reiheIndex < matrix.reihen && spalteIndex < matrix.spalten) { MatrixType buffer1[] = {1, 2, 3, 4, 5, 6};
return matrix.werte[reiheIndex * matrix.spalten + spalteIndex]; MatrixType buffer2[] = {7, 8, 9, 10, 11, 12};
} Matrix matrix1 = {.rows=2, .cols=3, .buffer=buffer1};
return UNDEFINIERTER_MATRIXWERT; Matrix matrix2 = {.rows=2, .cols=3, .buffer=buffer2};
Matrix result = add(matrix1, matrix2);
float expectedResults[] = {8, 10, 12, 14, 16, 18};
TEST_ASSERT_EQUAL_UINT32(matrix1.rows, result.rows);
TEST_ASSERT_EQUAL_UINT32(matrix2.rows, result.rows);
TEST_ASSERT_EQUAL_UINT32(matrix1.cols, result.cols);
TEST_ASSERT_EQUAL_UINT32(matrix2.cols, result.cols);
TEST_ASSERT_EQUAL_INT(sizeof(expectedResults)/sizeof(expectedResults[0]), result.rows * result.cols);
TEST_ASSERT_EQUAL_FLOAT_ARRAY(expectedResults, result.buffer, result.cols * result.rows);
free(result.buffer);
} }
MatrixTyp addiereMatrix(const MatrixTyp matrix1, const MatrixTyp matrix2) void test_addFailsOnDifferentInputDimensions(void)
{ {
if (matrix1.reihen != matrix2.reihen || matrix1.spalten != matrix2.spalten) { MatrixType buffer1[] = {1, 2, 3, 4, 5, 6};
return erstelleMatrix(0, 0); MatrixType buffer2[] = {7, 8, 9, 10, 11, 12};
Matrix matrix1 = {.rows=2, .cols=3, .buffer=buffer1};
Matrix matrix2 = {.rows=3, .cols=2, .buffer=buffer2};
Matrix result = add(matrix1, matrix2);
TEST_ASSERT_NULL(result.buffer);
TEST_ASSERT_EQUAL_UINT32(0, result.rows);
TEST_ASSERT_EQUAL_UINT32(0, result.cols);
} }
MatrixTyp ergebnis = erstelleMatrix(matrix1.reihen, matrix1.spalten); void test_addSupportsBroadcasting(void)
for (unsigned int i = 0; i < matrix1.reihen; ++i) {
for (unsigned int j = 0; j < matrix1.spalten; ++j) {
MatrixWert wert = holeMatrixWert(matrix1, i, j) + holeMatrixWert(matrix2, i, j);
setzeMatrixWert(wert, ergebnis, i, j);
}
}
return ergebnis;
}
MatrixTyp multipliziereMatrix(const MatrixTyp matrix1, const MatrixTyp matrix2)
{ {
if (matrix1.spalten != matrix2.reihen) { MatrixType buffer1[] = {1, 2, 3, 4, 5, 6};
return erstelleMatrix(0, 0); MatrixType buffer2[] = {7, 8};
Matrix matrix1 = {.rows=2, .cols=3, .buffer=buffer1};
Matrix matrix2 = {.rows=2, .cols=1, .buffer=buffer2};
Matrix result1 = add(matrix1, matrix2);
Matrix result2 = add(matrix2, matrix1);
float expectedResults[] = {8, 9, 10, 12, 13, 14};
TEST_ASSERT_EQUAL_UINT32(matrix1.rows, result1.rows);
TEST_ASSERT_EQUAL_UINT32(matrix1.cols, result1.cols);
TEST_ASSERT_EQUAL_UINT32(matrix1.rows, result2.rows);
TEST_ASSERT_EQUAL_UINT32(matrix1.cols, result2.cols);
TEST_ASSERT_EQUAL_INT(sizeof(expectedResults)/sizeof(expectedResults[0]), result1.rows * result1.cols);
TEST_ASSERT_EQUAL_FLOAT_ARRAY(expectedResults, result1.buffer, result1.cols * result1.rows);
TEST_ASSERT_EQUAL_INT(sizeof(expectedResults)/sizeof(expectedResults[0]), result2.rows * result2.cols);
TEST_ASSERT_EQUAL_FLOAT_ARRAY(expectedResults, result2.buffer, result2.cols * result2.rows);
free(result1.buffer);
free(result2.buffer);
} }
MatrixTyp ergebnis = erstelleMatrix(matrix1.reihen, matrix2.spalten); void test_multiplyReturnsCorrectResults(void)
for (unsigned int i = 0; i < matrix1.reihen; ++i) { {
for (unsigned int j = 0; j < matrix2.spalten; ++j) { MatrixType buffer1[] = {1, 2, 3, 4, 5, 6};
MatrixWert summe = 0; MatrixType buffer2[] = {7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18};
for (unsigned int k = 0; k < matrix1.spalten; ++k) { Matrix matrix1 = {.rows=2, .cols=3, .buffer=buffer1};
summe += holeMatrixWert(matrix1, i, k) * holeMatrixWert(matrix2, k, j); Matrix matrix2 = {.rows=3, .cols=4, .buffer=buffer2};
Matrix result = multiply(matrix1, matrix2);
float expectedResults[] = {74, 80, 86, 92, 173, 188, 203, 218};
TEST_ASSERT_EQUAL_UINT32(matrix1.rows, result.rows);
TEST_ASSERT_EQUAL_UINT32(matrix2.cols, result.cols);
TEST_ASSERT_EQUAL_INT(sizeof(expectedResults)/sizeof(expectedResults[0]), result.rows * result.cols);
TEST_ASSERT_EQUAL_FLOAT_ARRAY(expectedResults, result.buffer, result.cols * result.rows);
free(result.buffer);
} }
setzeMatrixWert(summe, ergebnis, i, j);
void test_multiplyFailsOnWrongInputDimensions(void)
{
MatrixType buffer1[] = {1, 2, 3, 4, 5, 6};
MatrixType buffer2[] = {7, 8, 9, 10, 11, 12};
Matrix matrix1 = {.rows=2, .cols=3, .buffer=buffer1};
Matrix matrix2 = {.rows=2, .cols=3, .buffer=buffer2};
Matrix result = multiply(matrix1, matrix2);
TEST_ASSERT_NULL(result.buffer);
TEST_ASSERT_EQUAL_UINT32(0, result.rows);
TEST_ASSERT_EQUAL_UINT32(0, result.cols);
} }
void test_getMatrixAtReturnsCorrectResult(void)
{
MatrixType buffer[] = {1, 2, 3, 4, 5, 6};
Matrix matrixToTest = {.rows=2, .cols=3, .buffer=buffer};
int expectedResult = buffer[4];
TEST_ASSERT_EQUAL_INT(expectedResult, getMatrixAt(matrixToTest, 1, 1));
} }
return ergebnis;
void test_getMatrixAtFailsOnIndicesOutOfRange(void)
{
MatrixType buffer[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
Matrix matrixToTest = {.rows=2, .cols=3, .buffer=buffer};
TEST_ASSERT_EQUAL_INT(UNDEFINED_MATRIX_VALUE, getMatrixAt(matrixToTest, 2, 3));
}
void test_setMatrixAtSetsCorrectValue(void)
{
const int expectedResult = -1;
MatrixType buffer[] = {1, 2, 3, 4, 5, 6};
Matrix matrixUnderTest = {.rows=2, .cols=3, .buffer=buffer};
setMatrixAt(expectedResult, matrixUnderTest, 1, 2);
TEST_ASSERT_EQUAL_INT(expectedResult, buffer[5]);
}
void test_setMatrixAtFailsOnIndicesOutOfRange(void)
{
const float expectedResults[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
MatrixType buffer[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
Matrix matrixToTest = {.rows=2, .cols=3, .buffer=buffer};
setMatrixAt(-1, matrixToTest, 2, 3);
TEST_ASSERT_EQUAL_FLOAT_ARRAY(expectedResults, matrixToTest.buffer, matrixToTest.cols * matrixToTest.rows);
}
void setUp(void) {
// Falls notwendig, kann hier Vorbereitungsarbeit gemacht werden
}
void tearDown(void) {
// Hier kann Bereinigungsarbeit nach jedem Test durchgeführt werden
}
int main()
{
UNITY_BEGIN();
printf("============================\nMatrix tests\n============================\n");
RUN_TEST(test_createMatrixReturnsCorrectMatrixDimensions);
RUN_TEST(test_createMatrixFailsOnZeroDimensions);
RUN_TEST(test_clearMatrixSetsMembersToNull);
RUN_TEST(test_addReturnsCorrectResult);
RUN_TEST(test_addFailsOnDifferentInputDimensions);
RUN_TEST(test_addSupportsBroadcasting);
RUN_TEST(test_multiplyReturnsCorrectResults);
RUN_TEST(test_multiplyFailsOnWrongInputDimensions);
RUN_TEST(test_getMatrixAtReturnsCorrectResult);
RUN_TEST(test_getMatrixAtFailsOnIndicesOutOfRange);
RUN_TEST(test_setMatrixAtSetsCorrectValue);
RUN_TEST(test_setMatrixAtFailsOnIndicesOutOfRange);
return UNITY_END();
} }