Add unit test for copyfile()/fcopyfile()

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

tests/.gitignore

@@ -1,5 +1,6 @@
 *.log
 *.trs
+copyfile
 dir
 fexist
 fisdir

tests/Makefile.am

@@ -2,6 +2,7 @@ EXTRA_DIST      = check.h
 CLEANFILES      = *~ *.trs *.log
 
 TESTS           =
+TESTS          += copyfile
 TESTS          += dir
 TESTS          += fexist
 TESTS          += fisdir

tests/copyfile.c

@@ -0,0 +1,55 @@
+#include <err.h>
+#include <errno.h>
+#include "check.h"
+
+int main(void)
+{
+	int i = 0;
+	char *files[] = {
+		"/etc/passwd", "/tmp/mypwd", "/tmp/mypwd",
+		"/etc/passwd", "/tmp/", "/tmp/passwd",
+		"/etc/passwd", "/tmp", "/tmp/passwd",
+		NULL
+	};
+	FILE *src, *dst;
+
+	printf("=>Start testing fcopyfile()\n");
+	while (files[i]) {
+		printf("fcopyfile(%s, %s)\t", files[i], files[i + 1]);
+		src = fopen(files[i], "r");
+		dst = fopen(files[i + 1], "w");
+		if (fcopyfile(src, dst)) {
+			if (!fisdir(files[i + 1]))
+			    err(1, "Failed fcopyfile(%s, %s)", files[i], files[i + 1]);
+		}
+
+		if (src)
+			fclose(src);
+		if (dst)
+			fclose(dst);
+
+		if (fexist(files[i + 2]))
+			printf("OK => %s", files[i + 2]);
+		printf("\n");
+
+		erase(files[i + 2]);
+		i += 3;
+	}
+
+	printf("\n=>Start testing copyfile()\n");
+	i = 0;
+	while (files[i]) {
+		printf("copyfile(%s, %s)\t", files[i], files[i + 1]);
+		if (!copyfile(files[i], files[i + 1], 0, 0))
+			err(1, "Failed copyfile(%s, %s)", files[i], files[i + 1]);
+
+		if (fexist(files[i + 2]))
+			printf("OK => %s", files[i + 2]);
+		printf("\n");
+
+		erase(files[i + 2]);
+		i += 3;
+	}
+
+	return 0;
+}