dm: Add tests for the sandbox host driver

Add some unit tests for this.

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 195 insertions, 0 deletions

diff --git a/test/dm/host.c b/test/dm/host.c
new file mode 100644
index 0000000000..4dafc24abb
--- /dev/null
+++ b/test/dm/host.c
@@ -0,0 +1,195 @@
+// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
+/*
+ * Copyright 2022 Google LLC
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#include <common.h>
+#include <blk.h>
+#include <dm.h>
+#include <fs.h>
+#include <sandbox_host.h>
+#include <asm/test.h>
+#include <dm/device-internal.h>
+#include <dm/test.h>
+#include <test/test.h>
+#include <test/ut.h>
+
+static const char filename[] = "2MB.ext2.img";
+static const char filename2[] = "1MB.fat32.img";
+
+/* Basic test of host interface */
+static int dm_test_host(struct unit_test_state *uts)
+{
+	static char label[] = "test";
+	struct udevice *dev, *part, *chk, *blk;
+	struct host_sb_plat *plat;
+	struct blk_desc *desc;
+	ulong mem_start;
+	loff_t actwrite;
+
+	ut_asserteq(-ENODEV, uclass_first_device_err(UCLASS_HOST, &dev));
+	ut_asserteq(-ENODEV, uclass_first_device_err(UCLASS_PARTITION, &part));
+
+	mem_start = ut_check_delta(0);
+	ut_assertok(host_create_device(label, true, &dev));
+
+	/* Check that the plat data has been allocated */
+	plat = dev_get_plat(dev);
+	ut_asserteq_str("test", plat->label);
+	ut_assert(label != plat->label);
+	ut_asserteq(0, plat->fd);
+
+	/* Attach a file created in test_host.py */
+	ut_assertok(host_attach_file(dev, filename));
+	ut_assertok(uclass_first_device_err(UCLASS_HOST, &chk));
+	ut_asserteq_ptr(chk, dev);
+
+	ut_asserteq_str(filename, plat->filename);
+	ut_assert(filename != plat->filename);
+	ut_assert(plat->fd != 0);
+
+	/* Get the block device */
+	ut_assertok(blk_get_from_parent(dev, &blk));
+	ut_assertok(device_probe(blk));
+
+	/* There should be no partition table in this device */
+	ut_asserteq(-ENODEV, uclass_first_device_err(UCLASS_PARTITION, &part));
+
+	/* Write to a file on the ext4 filesystem */
+	desc = dev_get_uclass_plat(blk);
+	ut_asserteq(true, desc->removable);
+	ut_assertok(fs_set_blk_dev_with_part(desc, 0));
+	ut_assertok(fs_write("/testing", 0, 0, 0x1000, &actwrite));
+
+	ut_assertok(host_detach_file(dev));
+	ut_asserteq(0, plat->fd);
+	ut_asserteq(-ENODEV, blk_get_from_parent(dev, &blk));
+	ut_assertok(device_unbind(dev));
+
+	/* check there were no memory leaks */
+	ut_asserteq(0, ut_check_delta(mem_start));
+
+	return 0;
+}
+DM_TEST(dm_test_host, UT_TESTF_SCAN_FDT);
+
+/* reusing the same label should work */
+static int dm_test_host_dup(struct unit_test_state *uts)
+{
+	static char label[] = "test";
+	struct udevice *dev, *chk;
+
+	ut_asserteq(0, uclass_id_count(UCLASS_HOST));
+	ut_assertok(host_create_device(label, true, &dev));
+
+	/* Attach a file created in test_host.py */
+	ut_assertok(host_attach_file(dev, filename));
+	ut_assertok(uclass_first_device_err(UCLASS_HOST, &chk));
+	ut_asserteq_ptr(chk, dev);
+	ut_asserteq(1, uclass_id_count(UCLASS_HOST));
+
+	/* Create another device with the same label (should remove old one) */
+	ut_assertok(host_create_device(label, true, &dev));
+
+	/* Attach a different file created in test_host.py */
+	ut_assertok(host_attach_file(dev, filename2));
+	ut_assertok(uclass_first_device_err(UCLASS_HOST, &chk));
+	ut_asserteq_ptr(chk, dev);
+
+	/* Make sure there is still only one device */
+	ut_asserteq(1, uclass_id_count(UCLASS_HOST));
+
+	return 0;
+}
+DM_TEST(dm_test_host_dup, UT_TESTF_SCAN_FDT);
+
+/* Basic test of 'host' command */
+static int dm_test_cmd_host(struct unit_test_state *uts)
+{
+	struct udevice *dev, *blk;
+	struct blk_desc *desc;
+
+	console_record_reset();
+
+	/* first check 'host info' with binding */
+	ut_assertok(run_command("host info", 0));
+	ut_assert_nextline("dev       blocks label           path");
+	ut_assert_console_end();
+
+	ut_assertok(run_commandf("host bind -r test2 %s", filename));
+
+	/* Check the -r flag worked */
+	ut_assertok(uclass_first_device_err(UCLASS_HOST, &dev));
+	ut_assertok(blk_get_from_parent(dev, &blk));
+	desc = dev_get_uclass_plat(blk);
+	ut_asserteq(true, desc->removable);
+
+	ut_assertok(run_command("host info", 0));
+	ut_assert_nextline("dev       blocks label           path");
+	ut_assert_nextline("  0         4096 test2           2MB.ext2.img");
+	ut_assert_console_end();
+
+	ut_assertok(run_commandf("host bind fat %s", filename2));
+
+	/* Check it is not removeable (no '-r') */
+	ut_assertok(uclass_next_device_err(&dev));
+	ut_assertok(blk_get_from_parent(dev, &blk));
+	desc = dev_get_uclass_plat(blk);
+	ut_asserteq(false, desc->removable);
+
+	ut_assertok(run_command("host info", 0));
+	ut_assert_nextline("dev       blocks label           path");
+	ut_assert_nextline("  0         4096 test2           2MB.ext2.img");
+	ut_assert_nextline("  1         2048 fat             1MB.fat32.img");
+	ut_assert_console_end();
+
+	ut_asserteq(1, run_command("host info test", 0));
+	ut_assert_nextline("No such device 'test'");
+	ut_assert_console_end();
+
+	ut_assertok(run_command("host info fat", 0));
+	ut_assert_nextline("dev       blocks label           path");
+	ut_assert_nextline("  1         2048 fat             1MB.fat32.img");
+	ut_assert_console_end();
+
+	/* check 'host dev' */
+	ut_asserteq(1, run_command("host dev", 0));
+	ut_assert_nextline("No current host device");
+	ut_assert_console_end();
+
+	ut_asserteq(1, run_command("host dev missing", 0));
+	ut_assert_nextline("No such device 'missing'");
+	ut_assert_console_end();
+
+	ut_assertok(run_command("host dev fat", 0));
+	ut_assert_console_end();
+
+	ut_assertok(run_command("host dev", 0));
+	ut_assert_nextline("Current host device: 1: fat");
+	ut_assert_console_end();
+
+	/* Try a numerical label */
+	ut_assertok(run_command("host dev 0", 0));
+	ut_assert_console_end();
+
+	ut_assertok(run_command("host dev", 0));
+	ut_assert_nextline("Current host device: 0: test2");
+	ut_assert_console_end();
+
+	/* Remove one of the bindings */
+	ut_assertok(run_commandf("host unbind test2"));
+
+	/* There should now be no current device */
+	ut_asserteq(1, run_command("host dev", 0));
+	ut_assert_nextline("No current host device");
+	ut_assert_console_end();
+
+	ut_assertok(run_command("host info", 0));
+	ut_assert_nextline("dev       blocks label           path");
+	ut_assert_nextline("  1         2048 fat             1MB.fat32.img");
+	ut_assert_console_end();
+
+	return 0;
+}
+DM_TEST(dm_test_cmd_host, UT_TESTF_SCAN_FDT);