discover/grub2: Fix behavior of save_env -f

[petitboot] / test / parser / test-grub2-save-env-dash-f.c

diff --git a/test/parser/test-grub2-save-env-dash-f.c b/test/parser/test-grub2-save-env-dash-f.c
new file mode 100644 (file)
index 0000000..7d48f67
--- /dev/null
+++ b/test/parser/test-grub2-save-env-dash-f.c
@@ -0,0 +1,37 @@
+
+#include <string.h>
+
+#include <talloc/talloc.h>
+
+#include "parser-test.h"
+
+#if 0 /* PARSER_EMBEDDED_CONFIG */
+hello=world
+save_env -f env_file hello
+#endif
+
+static const char *envsig = "# GRUB Environment Block\n";
+
+void run_test(struct parser_test *test)
+{
+       const char *env_before, *env_after;
+
+       /* The environment file must be preallocated */
+
+       /* The padding at the end of the environment block is the length of
+        * "hello=world\n" */
+       env_before = talloc_asprintf(test, "%s%s", envsig,
+                                       "############");
+       test_add_file_data(test, test->ctx->device, "/boot/grub/env_file",
+                               env_before, strlen(env_before));
+
+       env_after = talloc_asprintf(test, "%s%s", envsig,
+                                       "hello=world\n");
+
+       test_read_conf_embedded(test, "/boot/grub/grub.cfg");
+
+       test_run_parser(test, "grub2");
+
+       check_file_contents(test, test->ctx->device, "/boot/grub/env_file",
+                               env_after, strlen(env_after));
+}