From 26694a270d602046fe097ab4e22225ef1fce81b7 Mon Sep 17 00:00:00 2001
From: "Begerad, Stefan" <dialog@swingbe.de>
Date: Mon, 2 Jan 2023 17:45:33 +0100
Subject: [PATCH] feat: add tdd

---
 write-location-file/main.c                    |  4 +++
 write-location-file/makefile                  |  9 +++--
 write-location-file/readme.md                 |  7 ++++
 .../write-location-file-test.c                | 18 ++++++++++
 write-location-file/write-location-file.c     | 33 +++++++++++++++++++
 write-location-file/write-location-file.h     |  3 ++
 6 files changed, 71 insertions(+), 3 deletions(-)
 create mode 100644 write-location-file/readme.md
 create mode 100644 write-location-file/write-location-file-test.c
 create mode 100644 write-location-file/write-location-file.c
 create mode 100644 write-location-file/write-location-file.h

diff --git a/write-location-file/main.c b/write-location-file/main.c
index a5efcec..69866b1 100644
--- a/write-location-file/main.c
+++ b/write-location-file/main.c
@@ -4,6 +4,8 @@
 #include <errno.h>
 #include <string.h>
 
+#include "write-location-file.h"
+
 int main()
 {
   FILE *fp;
@@ -36,6 +38,8 @@ int main()
   fprintf(fp, "%8s,%8s\n", lat, lon);
   fclose(fp);
 
+  write_location_file();
+
   printf("\nDone!\n");
   return 0;
 }
diff --git a/write-location-file/makefile b/write-location-file/makefile
index 7ea271c..c447894 100644
--- a/write-location-file/makefile
+++ b/write-location-file/makefile
@@ -1,9 +1,12 @@
 #put the most commonly desired target first (default)
-all: main.o
-	gcc main.o -o write
-main.o: main.c
+all: main.o write-location-file.o
+	gcc main.o write-location-file.o -o write
+main.o: main.c write-location-file.h
 	gcc -I . -c main.c
+write-location-file.o: write-location-file.c write-location-file.h
+	gcc -I . -c write-location-file.c
 clean:
 	rm -rf *.o
 	rm -rf write
 	rm -rf *.csv
+	rm -rf a.out
diff --git a/write-location-file/readme.md b/write-location-file/readme.md
new file mode 100644
index 0000000..d98bfb7
--- /dev/null
+++ b/write-location-file/readme.md
@@ -0,0 +1,7 @@
+# tdd
+
+* test write-location-file
+
+```
+gcc -Wall write-location-file-test.c write-location-file.c && ./a.out
+```
\ No newline at end of file
diff --git a/write-location-file/write-location-file-test.c b/write-location-file/write-location-file-test.c
new file mode 100644
index 0000000..3ebd6d2
--- /dev/null
+++ b/write-location-file/write-location-file-test.c
@@ -0,0 +1,18 @@
+/*write-location-file-test.c*/
+
+#include "write-location-file.h"
+
+/*use printf*/
+//#include <stdio.h>
+
+#include <assert.h>
+#include <stdbool.h>
+
+static void test(){
+  //printf("write_location_file() return %d:\n",write_location_file());
+  assert(write_location_file()==0 && "test()");
+}
+
+int main(){
+  test();
+}
diff --git a/write-location-file/write-location-file.c b/write-location-file/write-location-file.c
new file mode 100644
index 0000000..8b5497b
--- /dev/null
+++ b/write-location-file/write-location-file.c
@@ -0,0 +1,33 @@
+/*write-location-file.c*/
+
+#include "write-location-file.h"
+
+#include<stdio.h>
+
+/*use macro extern int errno*/
+#include <errno.h>
+#include <string.h>
+
+int write_location_file(){
+  FILE *fp;
+
+
+  printf("\nwrite-location-file() Start...\n");
+
+  fp = fopen("location-file.csv", "w");
+  if (fp==NULL)
+  {
+    /*failed to open file and associate stream*/
+    fprintf(stderr, "Value of errno: %d\n", errno);
+    fprintf(stderr, "Error opening file: %s\n", strerror(errno));
+  }
+
+  /*latitude e.g. 52.26594*/
+  /*longitude e.g. 10.52673*/
+  fprintf(fp, "52.26594,10.52673\n");
+  fclose(fp);
+
+  printf("\nwrite-location-file() Done!\n");
+  return 0;
+}
+
diff --git a/write-location-file/write-location-file.h b/write-location-file/write-location-file.h
new file mode 100644
index 0000000..4595843
--- /dev/null
+++ b/write-location-file/write-location-file.h
@@ -0,0 +1,3 @@
+/*write-location-file.h*/
+
+int write_location_file();