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From b8ebf512d4afa0f64503a96c2b58b12d9de531fb Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
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Date: Mon, 7 Mar 2022 19:22:01 +0100
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Subject: [PATCH] test-os-util: add basic tests for os-release parsing
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(cherry picked from commit 80e72f80bc407753582b421421c13ca50b675027)
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Related: #2082131
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---
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src/test/test-os-util.c | 62 +++++++++++++++++++++++++++++++++++++++++
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1 file changed, 62 insertions(+)
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diff --git a/src/test/test-os-util.c b/src/test/test-os-util.c
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index eb5466259a..5f82748783 100644
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--- a/src/test/test-os-util.c
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+++ b/src/test/test-os-util.c
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@@ -2,8 +2,11 @@
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#include <errno.h>
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+#include "fs-util.h"
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#include "log.h"
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#include "os-util.h"
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+#include "string-util.h"
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+#include "strv.h"
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#include "tests.h"
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TEST(path_is_os_tree) {
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@@ -12,4 +15,63 @@ TEST(path_is_os_tree) {
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assert_se(path_is_os_tree("/idontexist") == -ENOENT);
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}
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+TEST(parse_os_release) {
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+ /* Let's assume that we're running in a valid system, so os-release is available */
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+ _cleanup_free_ char *id = NULL, *id2 = NULL, *name = NULL, *foobar = NULL;
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+ assert_se(parse_os_release(NULL, "ID", &id) == 1);
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+ log_info("ID: %s", id);
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+
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+ assert_se(setenv("SYSTEMD_OS_RELEASE", "/dev/null", 1) == 0);
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+ assert_se(parse_os_release(NULL, "ID", &id2) == 0);
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+ log_info("ID: %s", strnull(id2));
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+
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+ _cleanup_(unlink_tempfilep) char tmpfile[] = "/tmp/test-os-util.XXXXXX";
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+ assert_se(write_tmpfile(tmpfile,
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+ "ID=the-id \n"
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+ "NAME=the-name") == 0);
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+
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+ assert_se(setenv("SYSTEMD_OS_RELEASE", tmpfile, 1) == 0);
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+ assert_se(parse_os_release(NULL, "ID", &id, "NAME", &name) == 2);
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+ log_info("ID: %s NAME: %s", id, name);
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+ assert_se(streq(id, "the-id"));
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+ assert_se(streq(name, "the-name"));
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+
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+ _cleanup_(unlink_tempfilep) char tmpfile2[] = "/tmp/test-os-util.XXXXXX";
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+ assert_se(write_tmpfile(tmpfile2,
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+ "ID=\"ignored\" \n"
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+ "ID=\"the-id\" \n"
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+ "NAME='the-name'") == 0);
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+
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+ assert_se(setenv("SYSTEMD_OS_RELEASE", tmpfile2, 1) == 0);
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+ // FIXME: we return 3, which means that the return value is useless in face of repeats
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+ assert_se(parse_os_release(NULL, "ID", &id, "NAME", &name) == 3);
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+ log_info("ID: %s NAME: %s", id, name);
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+ assert_se(streq(id, "the-id"));
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+ assert_se(streq(name, "the-name"));
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+
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+ assert_se(parse_os_release(NULL, "FOOBAR", &foobar) == 0);
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+ log_info("FOOBAR: %s", strnull(foobar));
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+ assert_se(foobar == NULL);
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+
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+ assert_se(unsetenv("SYSTEMD_OS_RELEASE") == 0);
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+}
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+
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+TEST(load_os_release_pairs) {
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+ _cleanup_(unlink_tempfilep) char tmpfile[] = "/tmp/test-os-util.XXXXXX";
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+ assert_se(write_tmpfile(tmpfile,
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+ "ID=\"ignored\" \n"
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+ "ID=\"the-id\" \n"
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+ "NAME='the-name'") == 0);
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+
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+ assert_se(setenv("SYSTEMD_OS_RELEASE", tmpfile, 1) == 0);
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+
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+ _cleanup_strv_free_ char **pairs = NULL;
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+ assert_se(load_os_release_pairs(NULL, &pairs) == 0);
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+ assert_se(strv_equal(pairs, STRV_MAKE("ID", "ignored", // FIXME
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+ "ID", "the-id",
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+ "NAME", "the-name")));
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+
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+ assert_se(unsetenv("SYSTEMD_OS_RELEASE") == 0);
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+}
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+
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DEFINE_TEST_MAIN(LOG_DEBUG);
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