Add tests

tests/add1.c

@@ -0,0 +1,12 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+int main(int argc, char *argv[]){
+    int a;
+    scanf("%d", &a);
+    int n = atoi(argv[1]);
+    n = n + 1 + a;
+   printf("%d\n",n);
+return 0;
+}

tests/error_prog.c

@@ -0,0 +1,6 @@
+#include <stdlib.h>
+
+int main() {
+    exit(1);
+    return 0;
+}

tests/ok_prog.c

@@ -0,0 +1,6 @@
+#include <stdlib.h>
+
+int main() {
+    exit(0);
+    return 0;
+}

tests/test1.c

@@ -0,0 +1,19 @@
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#define MAX_STR_LEN 100
+int main(int argc, char *argv[]) {
+    // FILE *my_file = fopen("output1.txt", "w");
+    int console_arg = atoi(argv[1]);
+    char input_str[MAX_STR_LEN];
+    read(0, input_str, MAX_STR_LEN);
+    fprintf(my_file, "%s\n", input_str);
+    int input_arg = atoi(input_str);
+    input_arg += 1;
+    input_arg += console_arg;
+    char output_str[MAX_STR_LEN];
+    sprintf(output_str, "%d\n", input_arg);
+    write(1, output_str, strlen(output_str));
+    return 0;
+}

tests/test2.c

@@ -0,0 +1,22 @@
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#define MAX_STR_LEN 100
+int main(int argc, char *argv[]) {
+    FILE *my_file = fopen("output2.txt", "w");
+    int console_arg = atoi(argv[1]);
+    char input_str[MAX_STR_LEN];
+    read(0, input_str, MAX_STR_LEN);
+    int input_arg = atoi(input_str);
+    input_arg += 2;
+    input_arg += console_arg;
+    char output_str[MAX_STR_LEN];
+    sprintf(output_str, "%d\n", input_arg);
+    // printf("%d", input_arg);
+    fprintf(my_file, "%s\n", output_str);
+    write(1, output_str, strlen(output_str));
+    // char my_eof = EOF;
+    // write(1, &my_eof, 1);
+    return 0;
+}