created all tests

.vscode/c_cpp_properties.json

@@ -0,0 +1,18 @@
+{
+  "configurations": [
+    {
+      "name": "macos-clang-arm64",
+      "includePath": [
+        "${workspaceFolder}/**"
+      ],
+      "compilerPath": "/usr/bin/clang",
+      "cStandard": "${default}",
+      "cppStandard": "${default}",
+      "intelliSenseMode": "macos-clang-arm64",
+      "compilerArgs": [
+        ""
+      ]
+    }
+  ],
+  "version": 4
+}

.vscode/launch.json

@@ -0,0 +1,13 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "C/C++ Runner: Debug Session",
+      "type": "lldb",
+      "request": "launch",
+      "args": [],
+      "cwd": "/Users/florianwetzel/I2_Praktikum/DobleSpiel",
+      "program": "/Users/florianwetzel/I2_Praktikum/DobleSpiel/build/Debug/outDebug"
+    }
+  ]
+}

.vscode/settings.json

@@ -0,0 +1,59 @@
+{
+  "C_Cpp_Runner.cCompilerPath": "clang",
+  "C_Cpp_Runner.cppCompilerPath": "clang++",
+  "C_Cpp_Runner.debuggerPath": "lldb",
+  "C_Cpp_Runner.cStandard": "",
+  "C_Cpp_Runner.cppStandard": "",
+  "C_Cpp_Runner.msvcBatchPath": "",
+  "C_Cpp_Runner.useMsvc": false,
+  "C_Cpp_Runner.warnings": [
+    "-Wall",
+    "-Wextra",
+    "-Wpedantic",
+    "-Wshadow",
+    "-Wformat=2",
+    "-Wcast-align",
+    "-Wconversion",
+    "-Wsign-conversion",
+    "-Wnull-dereference"
+  ],
+  "C_Cpp_Runner.msvcWarnings": [
+    "/W4",
+    "/permissive-",
+    "/w14242",
+    "/w14287",
+    "/w14296",
+    "/w14311",
+    "/w14826",
+    "/w44062",
+    "/w44242",
+    "/w14905",
+    "/w14906",
+    "/w14263",
+    "/w44265",
+    "/w14928"
+  ],
+  "C_Cpp_Runner.enableWarnings": true,
+  "C_Cpp_Runner.warningsAsError": false,
+  "C_Cpp_Runner.compilerArgs": [],
+  "C_Cpp_Runner.linkerArgs": [],
+  "C_Cpp_Runner.includePaths": [],
+  "C_Cpp_Runner.includeSearch": [
+    "*",
+    "**/*"
+  ],
+  "C_Cpp_Runner.excludeSearch": [
+    "**/build",
+    "**/build/**",
+    "**/.*",
+    "**/.*/**",
+    "**/.vscode",
+    "**/.vscode/**"
+  ],
+  "C_Cpp_Runner.useAddressSanitizer": false,
+  "C_Cpp_Runner.useUndefinedSanitizer": false,
+  "C_Cpp_Runner.useLeakSanitizer": false,
+  "C_Cpp_Runner.showCompilationTime": false,
+  "C_Cpp_Runner.useLinkTimeOptimization": false,
+  "C_Cpp_Runner.msvcSecureNoWarnings": false
+}

bintree.c

@@ -12,7 +12,6 @@
     * `nextTreeData`: Traversierung mit Hilfe des zuvor implementierten Stacks. Done */  
 
 
-    static TreeNode     *root       = NULL;
     static StackNode    *stackRoot  = NULL;
 
 
@@ -185,5 +184,7 @@ int treeSizeRec(const TreeNode *currentNode)
         nodeCount += treeSizeRec(currentNode->right);
         return nodeCount + 1;
     }
+
+    return nodeCount;
 }
 

makefile

@@ -49,6 +49,11 @@ stack: stack.c
 
 test_stack: stack.o test_stack.c $(unityfolder)/unity.c
 	$(CC) $(FLAGS) -o runstackTests test_stack.c stack.o $(unityfolder)/unity.c
+
+test_numbers: numbers.o bintree.o stack.o test_numbers.c $(unityfolder)/unity.c
+	$(CC) $(FLAGS) -o run_numbersTests test_numbers.c numbers.o bintree.o stack.o $(unityfolder)/unity.c
+
+
 # --------------------------
 # Clean
 # --------------------------

numbers.c

@@ -14,13 +14,106 @@
 // Returns len random numbers between 1 and 2x len in random order which are all different, except for two entries.
 // Returns NULL on errors. Use your implementation of the binary search tree to check for possible duplicates while
 // creating random numbers.
+
+static int compareUInt(const void *a, const void *b)
+{
+    unsigned int A = *(unsigned int*)a;
+    unsigned int B = *(unsigned int*)b;
+    if (A < B) return -1;
+    if (A > B) return 1;
+    return 0;
+}
+// Sortiervergleich für qsort
+int compareQsort(const void *a, const void *b)
+{
+    unsigned int A = *(const unsigned int*)a;
+    unsigned int B = *(const unsigned int*)b;
+    if (A < B) return -1;
+    if (A > B) return +1;
+    return 0;
+}
+
 unsigned int *createNumbers(unsigned int len)
 {
+    if (len < 2) return NULL;
 
+    srand((unsigned int)time(NULL));
+
+    // Speicher für das Array
+    unsigned int *numbers = malloc(sizeof(unsigned int) * len);
+    if (!numbers) return NULL;
+
+    TreeNode *root = NULL;        // Baumwurzel
+    unsigned int value;
+    int isDuplicate;
+
+    //Array mit eindeutigen Zufallszahlen füllen
+    for (unsigned int i = 0; i < len; i++)
+    {
+        while (1)
+        {
+            value = (rand() % (2 * len)) + 1; // Zufallszahl 1..2*len
+            isDuplicate = 0;
+
+            TreeNode *newRoot = addToTree(
+                root,
+                &value,
+                sizeof(unsigned int),
+                compareUInt,
+                &isDuplicate
+            );
+
+            if (!isDuplicate)
+            {
+                // Neue Zahl - akzeptieren
+                root = newRoot;
+                numbers[i] = value;
+                break;
+            }
+            // Sonst neue Zahl generieren
+        }
+    }
+
+    //genau eine Zufallszahl duplizieren
+    unsigned int idx1 = rand() % len;
+    unsigned int idx2 = rand() % len;
+
+    while (idx2 == idx1)
+        idx2 = rand() % len;
+
+    numbers[idx2] = numbers[idx1];
+
+    // Baum wieder freigeben
+    clearTree(root);
+
+    return numbers;
 }
 
 // Returns only the only number in numbers which is present twice. Returns zero on errors.
 unsigned int getDuplicate(const unsigned int numbers[], unsigned int len)
 {
+    if (!numbers || len < 2) return 0;
 
+    unsigned int *copy = malloc(len * sizeof(unsigned int));
+    if (!copy) return 0;
+
+    // Array kopieren
+    memcpy(copy, numbers, len * sizeof(unsigned int));
+
+    // Sortieren
+    qsort(copy, len, sizeof(unsigned int), compareQsort);
+
+    // Doppelte Zahl finden
+    unsigned int duplicate = 0;
+    for (unsigned int i = 0; i < len - 1; i++)
+    {
+        if (copy[i] == copy[i + 1])
+        {
+            duplicate = copy[i];
+            break;
+        }
+    }
+
+    free(copy);
+    return duplicate;
 }

test_numbers.c

@@ -0,0 +1,87 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include "numbers.h"
+#include "unity/unity.h"
+
+
+void setUp(void) {
+    // gehört zu unit-Grundaufbau
+}
+
+void tearDown(void) {
+    // gehört zu unit-Grundaufbau
+}
+
+// prüft, ob ein Array nur EIN Duplikat enthält
+static int countDuplicates(const unsigned int *arr, unsigned int len) {
+    int count = 0;
+    for (unsigned int i = 0; i < len; i++) {
+        for (unsigned int j = i + 1; j < len; j++) {
+            if (arr[i] == arr[j]) {
+                count++;
+            }
+        }
+    }
+    return count;
+}
+
+// Prüfen, ob createNumbers ein korrektes Array liefert
+static void test_createNumbers_basic(void)
+{
+    unsigned int len = 100;
+    unsigned int *arr = createNumbers(len);
+
+    TEST_ASSERT_NOT_NULL(arr);          // prüft ob Speicher korrekt
+    
+    // Prüfen: Länge stimmt
+    
+    // Prüfen: Array enthält GENAU EIN Duplikat
+    int dupCount = countDuplicates(arr, len);
+    TEST_ASSERT_EQUAL_INT(1, dupCount);
+
+    free(arr);
+}
+
+// TEST 2: Prüfen, ob getDuplicate die richtige doppelte Zahl erkennt
+static void test_getDuplicate_correctValue(void)
+{
+    unsigned int len = 200;
+    unsigned int *arr = createNumbers(len);
+
+    TEST_ASSERT_NOT_NULL(arr);
+
+    unsigned int duplicate = getDuplicate(arr, len);
+
+    // Manuelle Kontrolle: Der gefundene Wert muss tatsächlich doppelt vorkommen
+    int occurrences = 0;
+    for (unsigned int i = 0; i < len; i++) {
+        if (arr[i] == duplicate) {
+            occurrences++;
+        }
+    }
+
+    TEST_ASSERT_EQUAL_INT(2, occurrences);
+
+    free(arr);
+}
+
+// TEST 3: getDuplicate gibt 0 aus bei Fehlern
+static void test_getDuplicate_errors(void)
+{
+    TEST_ASSERT_EQUAL_UINT(0, getDuplicate(NULL, 10));
+    TEST_ASSERT_EQUAL_UINT(0, getDuplicate((unsigned int*)1, 1)); // len < 2
+}
+
+// Testbereich
+int main(void)
+{
+    UNITY_BEGIN();
+
+    RUN_TEST(test_createNumbers_basic);
+    RUN_TEST(test_getDuplicate_correctValue);
+    RUN_TEST(test_getDuplicate_errors);
+
+    return UNITY_END();
+}