1 files changed, 98 insertions, 0 deletions
diff --git a/lib/dpkg/t/t-file.c b/lib/dpkg/t/t-file.c
new file mode 100644
index 0000000..278df91
--- /dev/null
+++ b/lib/dpkg/t/t-file.c
@@ -0,0 +1,98 @@
+/*
+ * libdpkg - Debian packaging suite library routines
+ * t-file.c - test file functions
+ *
+ * Copyright © 2018 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <dpkg/test.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/file.h>
+
+#include <sys/types.h>
+
+#include <errno.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+static const char ref_data[] =
+	"this is a test string\n"
+	"within a test file\n"
+	"containing multiple lines\n"
+;
+
+static void
+test_file_slurp(void)
+{
+	struct varbuf vb = VARBUF_INIT;
+	struct dpkg_error err = DPKG_ERROR_INIT;
+	char *test_file;
+	char *test_dir;
+	int fd;
+
+	test_pass(file_slurp("/nonexistent", &vb, &err) < 0);
+	test_pass(vb.used == 0);
+	test_pass(vb.buf == NULL);
+	test_pass(err.syserrno == ENOENT);
+	test_error(err);
+	varbuf_destroy(&vb);
+
+	test_dir = test_alloc(strdup("test.XXXXXX"));
+	test_pass(mkdtemp(test_dir) != NULL);
+	test_pass(file_slurp(test_dir, &vb, &err) < 0);
+	test_pass(vb.used == 0);
+	test_pass(vb.buf == NULL);
+	test_pass(err.syserrno == 0);
+	test_error(err);
+	varbuf_destroy(&vb);
+	test_pass(rmdir(test_dir) == 0);
+	free(test_dir);
+
+	test_file = test_alloc(strdup("test.XXXXXX"));
+	fd = mkstemp(test_file);
+	test_pass(fd >= 0);
+
+	test_pass(file_slurp(test_file, &vb, &err) == 0);
+	test_pass(vb.used == 0);
+	test_pass(vb.buf == NULL);
+	test_pass(err.syserrno == 0);
+	test_pass(err.type == DPKG_MSG_NONE);
+	varbuf_destroy(&vb);
+
+	test_pass(write(fd, ref_data, strlen(ref_data)) == (ssize_t)strlen(ref_data));
+	test_pass(lseek(fd, 0, SEEK_SET) == 0);
+
+	test_pass(file_slurp(test_file, &vb, &err) == 0);
+	test_pass(vb.used == strlen(ref_data));
+	test_mem(vb.buf, ==, ref_data, min(vb.used, strlen(ref_data)));
+	test_pass(err.syserrno == 0);
+	test_pass(err.type == DPKG_MSG_NONE);
+	varbuf_destroy(&vb);
+
+	test_pass(unlink(test_file) == 0);
+	free(test_file);
+}
+
+TEST_ENTRY(test)
+{
+	test_plan(26);
+
+	test_file_slurp();
+}