From 4bb67cf7320d4749b42986a707d97c587b83430c Mon Sep 17 00:00:00 2001
From: Rahix <rahix@rahix.de>
Date: Thu, 15 Feb 2024 22:27:33 +0100
Subject: [PATCH] selftest: Add test for the u-boot crc32 workaround

Signed-off-by: Rahix <rahix@rahix.de>
---
 selftest/testmachines.py     | 5 +++++
 selftest/tests/test_board.py | 8 ++++++++
 2 files changed, 13 insertions(+)

diff --git a/selftest/testmachines.py b/selftest/testmachines.py
index f1508d5d..0ae73466 100644
--- a/selftest/testmachines.py
+++ b/selftest/testmachines.py
@@ -272,6 +272,11 @@ def _init_pre_connect(self) -> Iterator:
     shift
     eval "$var=\\"$*\\""
 }
+function crc32() {
+    printf "crc32 for %s ... %s ==> " "$1" "$1"
+    sleep 0.2
+    echo "deadb33f"
+}
 function boot() {
     echo "Pretending to boot Linux..."
     echo ""
diff --git a/selftest/tests/test_board.py b/selftest/tests/test_board.py
index b57ee4a3..3b4f5ae1 100644
--- a/selftest/tests/test_board.py
+++ b/selftest/tests/test_board.py
@@ -59,6 +59,14 @@ def test_uboot_simple_control(tbot_context: tbot.Context) -> None:
         assert out == "FOO"
 
 
+def test_uboot_crc32_workaround(tbot_context: tbot.Context) -> None:
+    with tbot_context.request(testmachines.MockhwBoardUBoot) as ub:
+        if ub.prompt != "=> ":
+            pytest.skip("Wrong U-Boot prompt for crc32 workaround test.")
+        ub.exec0("crc32", "0x10000008", "0x42")
+        assert ub.exec0("echo", "Hello World") == "Hello World\n"
+
+
 def test_linux_boot(tbot_context: tbot.Context) -> None:
     with tbot_context.request(testmachines.MockhwBoardLinux) as lnx:
         out = lnx.exec0("echo", "Hello World")