[PATCH] test: add --bootarg option when running under QEMU

[Ahmad Fatoum <a.fatoum@barebox.org>]

On platforms, where the device tree is passed by QEMU, /chosen/bootargs
is an easy way to pass early settings to barebox.

Expose this over a new --bootarg parameter.

Signed-off-by: Ahmad Fatoum <a.fatoum@barebox.org>
---
 conftest.py      | 5 +++++
 test/strategy.py | 7 +++++++
 2 files changed, 12 insertions(+)

diff --git a/conftest.py b/conftest.py
index 782ebc0536fd..45e8835924b3 100644
--- a/conftest.py
+++ b/conftest.py
@@ -68,6 +68,8 @@ def pytest_addoption(parser):
         help=('Pass barebox environment files to barebox. Can be specified more than once'))
     parser.addoption('--qemu', dest='qemu_arg', nargs=argparse.REMAINDER, default=[],
         help=('Pass all remaining options to QEMU as is'))
+    parser.addoption('--bootarg', action='append', dest='bootarg', default=[],
+        help=('Pass boot arguments to barebox for debugging purposes'))
 
 @pytest.fixture(scope="session")
 def strategy(request, target, pytestconfig):
@@ -152,6 +154,9 @@ def strategy(request, target, pytestconfig):
         else:
             pytest.exit("--env unsupported for target\n", 1)
 
+    if len(pytestconfig.option.bootarg) > 0:
+        strategy.append_qemu_bootargs(pytestconfig.option.bootarg)
+
     for arg in pytestconfig.option.qemu_arg:
         strategy.append_qemu_args(arg)
 
diff --git a/test/strategy.py b/test/strategy.py
index b5a9d8b814a8..11406b97f5f1 100644
--- a/test/strategy.py
+++ b/test/strategy.py
@@ -100,6 +100,13 @@ class BareboxTestStrategy(Strategy):
         for arg in args:
             self.console.extra_args += " " + arg
 
+    def append_qemu_bootargs(self, args):
+        if self.qemu is None:
+            pytest.exit('Qemu option supplied for non-Qemu target')
+        if self.console.boot_args is None:
+            self.console.boot_args = ""
+        self.console.boot_args += " ".join(args)
+
 def quote_cmd(cmd):
     quoted = map(lambda s : s if s.find(" ") == -1 else "'" + s + "'", cmd)
     return " ".join(quoted)
-- 
2.39.5