test: Add PStore command tests

Add PStore command to sandbox and sandbox64 defconfigs.
Add test checking:
- 'pstore display' of all records
- 'pstore display' only the 2nd dump record
- 'pstore save' of all records

Signed-off-by: Frédéric Danis <frederic.danis@collabora.com>
[trini: Adjust to always load files from source directory]
Signed-off-by: Tom Rini <trini@konsulko.com>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Heiko Schocher <hs@denx.de>

configs/sandbox64_defconfig

@@ -80,6 +80,8 @@ CONFIG_CMD_CBFS=y
 CONFIG_CMD_CRAMFS=y
 CONFIG_CMD_EXT4_WRITE=y
 CONFIG_CMD_MTDPARTS=y
+CONFIG_CMD_PSTORE=y
+CONFIG_CMD_PSTORE_MEM_ADDR=0x3000000
 CONFIG_MAC_PARTITION=y
 CONFIG_AMIGA_PARTITION=y
 CONFIG_OF_CONTROL=y

configs/sandbox_defconfig

@@ -93,6 +93,8 @@ CONFIG_CMD_CRAMFS=y
 CONFIG_CMD_EXT4_WRITE=y
 CONFIG_CMD_SQUASHFS=y
 CONFIG_CMD_MTDPARTS=y
+CONFIG_CMD_PSTORE=y
+CONFIG_CMD_PSTORE_MEM_ADDR=0x3000000
 CONFIG_MAC_PARTITION=y
 CONFIG_AMIGA_PARTITION=y
 CONFIG_OF_CONTROL=y

test/py/tests/test_pstore.py

@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: GPL-2.0+
+# Copyright (c) 2020, Collabora
+# Author: Frédéric Danis <frederic.danis@collabora.com>
+
+import pytest
+import u_boot_utils
+import os
+import tempfile
+import shutil
+
+PSTORE_ADDR=0x3000000
+PSTORE_LENGTH=0x100000
+PSTORE_PANIC1='test/py/tests/test_pstore_data_panic1.hex'
+PSTORE_PANIC2='test/py/tests/test_pstore_data_panic2.hex'
+PSTORE_CONSOLE='test/py/tests/test_pstore_data_console.hex'
+ADDR=0x01000008
+
+def load_pstore(u_boot_console):
+    """Load PStore records from sample files"""
+
+    output = u_boot_console.run_command_list([
+        'host load hostfs - 0x%x %s' % (PSTORE_ADDR,
+            os.path.join(u_boot_console.config.source_dir, PSTORE_PANIC1)),
+        'host load hostfs - 0x%x %s' % (PSTORE_ADDR + 4096,
+            os.path.join(u_boot_console.config.source_dir, PSTORE_PANIC2)),
+        'host load hostfs - 0x%x %s' % (PSTORE_ADDR + 253 * 4096,
+            os.path.join(u_boot_console.config.source_dir, PSTORE_CONSOLE)),
+        'pstore set 0x%x 0x%x' % (PSTORE_ADDR, PSTORE_LENGTH)])
+
+def checkfile(u_boot_console, path, filesize, checksum):
+    """Check file against MD5 checksum"""
+
+    output = u_boot_console.run_command_list([
+        'load hostfs - %x %s' % (ADDR, path),
+        'printenv filesize'])
+    assert('filesize=%x' % (filesize) in ''.join(output))
+
+    output = u_boot_console.run_command_list([
+        'md5sum %x $filesize' % ADDR,
+        'setenv filesize'])
+    assert(checksum in ''.join(output))
+
+@pytest.mark.buildconfigspec('cmd_pstore')
+def test_pstore_display_all_records(u_boot_console):
+    """Test that pstore displays all records."""
+
+    u_boot_console.run_command('')
+    load_pstore(u_boot_console)
+    response = u_boot_console.run_command('pstore display')
+    assert('**** Dump' in response)
+    assert('**** Console' in response)
+
+@pytest.mark.buildconfigspec('cmd_pstore')
+def test_pstore_display_one_record(u_boot_console):
+    """Test that pstore displays only one record."""
+
+    u_boot_console.run_command('')
+    load_pstore(u_boot_console)
+    response = u_boot_console.run_command('pstore display dump 1')
+    assert('Panic#2 Part1' in response)
+    assert('**** Console' not in response)
+
+@pytest.mark.buildconfigspec('cmd_pstore')
+def test_pstore_save_records(u_boot_console):
+    """Test that pstore saves all records."""
+
+    outdir = tempfile.mkdtemp()
+
+    u_boot_console.run_command('')
+    load_pstore(u_boot_console)
+    u_boot_console.run_command('pstore save hostfs - %s' % (outdir))
+
+    checkfile(u_boot_console, '%s/dmesg-ramoops-0' % (outdir), 3798, '8059335ab4cfa62c77324c491659c503')
+    checkfile(u_boot_console, '%s/dmesg-ramoops-1' % (outdir), 4035, '3ff30df3429d81939c75d0070b5187b9')
+    checkfile(u_boot_console, '%s/console-ramoops-0' % (outdir), 4084, 'bb44de4a9b8ebd9b17ae98003287325b')
+
+    shutil.rmtree(outdir)