wip

stack.c

@@ -8,9 +8,29 @@
     * `clearStack`: gibt den gesamten Speicher frei. */
 
 // Pushes data as pointer onto the stack.
+static StackNode *createEmptyElement()
+{
+    return malloc(sizeof(StackNode));
+}
 StackNode *push(StackNode *stack, void *data)
 {
-
+    StackNode *newElement = createEmptyElement();
+    newElement->data = data;
+    newElement->next = NULL;
+    if (stack == NULL)
+    {
+        stack = newElement;
+    }
+    else
+    {
+        StackNode *currentElement = stack;
+        while(currentElement->next != NULL)
+        {
+            currentElement = currentElement->next;
+        }
+        currentElement->next = newElement;
+    return stack;
+    }
 }
 
 // Deletes the top element of the stack (latest added element) and releases its memory. (Pointer to data has to be

stack.h

@@ -8,6 +8,11 @@ The latest element is taken from the stack. */
 #include <stdlib.h>
 
 //TODO: passenden Datentyp als struct anlegen
+typedef struct node
+{
+    void *data;
+    struct node* next;
+}StackNode;
 
 // Pushes data as pointer onto the stack.
 StackNode *push(StackNode *stack, void *data);

test__numbers.c

@@ -1,67 +1,78 @@
 #include <stdio.h>
 #include <stdlib.h>
-#include <assert.h>
 #include "unity/unity.h"
 #include "numbers.h"
 
+static unsigned int count_number_occurrence(const unsigned int *arr, unsigned int len, unsigned int value)
+{
+    unsigned int count = 0;
+    for (unsigned int i = 0; i < len; i++)
+    {
+        if (arr[i] == value)
+            count++;
+    }
+    return count;
+}
+
 void test_length_and_duplicate()
 {
     setSeed(1);
     unsigned int len = 10;
     unsigned int *test_numbers = createNumbers(len);
 
-    if (test_numbers == NULL)
-    {
-        return;
-    }
-
-    /*
-    setSeed(1);
-    unsigned int len = 10;
-    unsigned int *test_numbers = createNumbers(len);
-
-    if (test_numbers == NULL)
-    {
-        return;
-    }
-
-    unsigned int expected[10] = {20, 8, 13, 19, 17, 16, 12, 0, 15, 14};
+    TEST_ASSERT_NOT_NULL(test_numbers);
 
+    //Bereich checken:
     for (unsigned int i = 0; i < len; i++)
     {
-        if (test_numbers[i] != expected[i])
-        {
-            free(test_numbers);
-            return;
+        TEST_ASSERT_TRUE(test_numbers[i] >= 1);
+        TEST_ASSERT_TRUE(test_numbers[i] <= len * 2);
     }
+
+    //Prüfen, ob genau 1 Wert doppelt vorkommt:
+    unsigned int duplicate = getDuplicate(test_numbers, len);
+    TEST_ASSERT_NOT_EQUAL(0, duplicate);
+
+    unsigned int occurrences = count_number_occurrence(test_numbers, len, duplicate);
+    TEST_ASSERT_EQUAL_UINT(2, occurrences);
+
+    //Prüfen, ob alle anderen Werte nur einmal vorkommen:
+    for (unsigned int i = 1; i <= len * 2; i++)
+    {
+        if (i == duplicate)
+            continue;
+
+        unsigned int c = count_number_occurrence(test_numbers, len, i);
+        TEST_ASSERT_TRUE(c <= 1); //Keine Zahl darf doppelt vorkommen.
     }
 
     free(test_numbers);
-    */
 }
 
 void test_duplicate_value()
 {
     unsigned int test_numbers[6] = {1, 2, 3, 4, 5, 5};
-    unsigned int dupli = 0;
+    unsigned int duplicate = 0;
 
-    dupli = getDuplicate(test_numbers, 6);
-
-    TEST_ASSERT_EQUAL(5, dupli);
+    duplicate = getDuplicate(test_numbers, 6);
 
+    TEST_ASSERT_EQUAL(5, duplicate);
 }
 
 void test_duplicate_value_if_false()
 {
     unsigned int test_numbers[6] = {1, 2, 3, 4, 5, 6};
-    unsigned int dupli = 0;
+    unsigned int duplicate = 0;
 
-    dupli = getDuplicate(test_numbers, 6);
-
-    TEST_ASSERT_EQUAL(0, dupli);
+    duplicate = getDuplicate(test_numbers, 6);
 
+    TEST_ASSERT_EQUAL(0, duplicate);
 }
 
+void setUp(void) {}
+
+void tearDown(void) {}
+
 int main(void)
 {
     UNITY_BEGIN();

test_stack.c

@@ -0,0 +1,20 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "stack.h"
+
+void testPushAddsElementCorrectly(void)
+{
+    int a = 10;
+    StackNode *node = push(NULL, &a);
+
+    TEST_ASSERT_NOT_NULL(node);
+    TEST_ASSERT_EQUAL_INT(a, *((int*)node->data)); //void Zeiger in integer-Zeiger umwandeln
+}
+
+int main(void)
+{
+    UNITY_BEGIN();
+    RUN_TEST(testPushAddsElementCorrectly);
+    return UNITY_END();
+}