From 535e700b9db908e0b1afba7719090e315299b9c2 Mon Sep 17 00:00:00 2001
From: Sean Anderson <sean.anderson@seco.com>
Date: Mon, 12 Apr 2021 18:53:07 -0400
Subject: [PATCH] test: Add test for partitions

This is technically a library function, but we use MMCs for testing, so
it is easier to do it with DM. At the moment, the only block devices in
sandbox are MMCs (AFAIK) so we just test with those.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
---
 test/dm/Makefile |  1 +
 test/dm/part.c   | 76 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 77 insertions(+)
 create mode 100644 test/dm/part.c

diff --git a/test/dm/Makefile b/test/dm/Makefile
index 52a8c932b8..e7cb1eec96 100644
--- a/test/dm/Makefile
+++ b/test/dm/Makefile
@@ -61,6 +61,7 @@ obj-y += ofread.o
 obj-y += of_extra.o
 obj-$(CONFIG_OSD) += osd.o
 obj-$(CONFIG_DM_VIDEO) += panel.o
+obj-$(CONFIG_EFI_PARTITION) += part.o
 obj-$(CONFIG_DM_PCI) += pci.o
 obj-$(CONFIG_P2SB) += p2sb.o
 obj-$(CONFIG_PCI_ENDPOINT) += pci_ep.o
diff --git a/test/dm/part.c b/test/dm/part.c
new file mode 100644
index 0000000000..051e9010b6
--- /dev/null
+++ b/test/dm/part.c
@@ -0,0 +1,76 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2020 Sean Anderson <sean.anderson@seco.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <mmc.h>
+#include <part.h>
+#include <part_efi.h>
+#include <dm/test.h>
+#include <test/ut.h>
+
+static int dm_test_part(struct unit_test_state *uts)
+{
+	char str_disk_guid[UUID_STR_LEN + 1];
+	struct blk_desc *mmc_dev_desc;
+	struct disk_partition part_info;
+	struct disk_partition parts[2] = {
+		{
+			.start = 48, /* GPT data takes up the first 34 blocks or so */
+			.size = 1,
+			.name = "test1",
+		},
+		{
+			.start = 49,
+			.size = 1,
+			.name = "test2",
+		},
+	};
+
+	ut_asserteq(1, blk_get_device_by_str("mmc", "1", &mmc_dev_desc));
+	if (CONFIG_IS_ENABLED(RANDOM_UUID)) {
+		gen_rand_uuid_str(parts[0].uuid, UUID_STR_FORMAT_STD);
+		gen_rand_uuid_str(parts[1].uuid, UUID_STR_FORMAT_STD);
+		gen_rand_uuid_str(str_disk_guid, UUID_STR_FORMAT_STD);
+	}
+	ut_assertok(gpt_restore(mmc_dev_desc, str_disk_guid, parts,
+				ARRAY_SIZE(parts)));
+
+#define test(expected, part_str, whole) \
+	ut_asserteq(expected, \
+		    part_get_info_by_dev_and_name_or_num("mmc", part_str, \
+							 &mmc_dev_desc, \
+							 &part_info, whole))
+
+	test(-ENODEV, "", true);
+	env_set("bootdevice", "0");
+	test(0, "", true);
+	env_set("bootdevice", "1");
+	test(1, "", false);
+	test(1, "-", false);
+	env_set("bootdevice", "");
+	test(-EPROTONOSUPPORT, "0", false);
+	test(0, "0", true);
+	test(0, ":0", true);
+	test(0, ".0", true);
+	test(0, ".0:0", true);
+	test(-EINVAL, "#test1", true);
+	test(1, "1", false);
+	test(1, "1", true);
+	test(-ENOENT, "1:0", false);
+	test(0, "1:0", true);
+	test(1, "1:1", false);
+	test(2, "1:2", false);
+	test(1, "1.0", false);
+	test(0, "1.0:0", true);
+	test(1, "1.0:1", false);
+	test(2, "1.0:2", false);
+	test(-EINVAL, "1#bogus", false);
+	test(1, "1#test1", false);
+	test(2, "1#test2", false);
+
+	return 0;
+}
+DM_TEST(dm_test_part, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);