test: unit test for eficonfig

Provide a unit test for the eficonfig command.

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>

test/py/tests/test_eficonfig/conftest.py

@@ -0,0 +1,40 @@
+# SPDX-License-Identifier:      GPL-2.0+
+
+"""Fixture for UEFI eficonfig test
+"""
+
+import os
+import shutil
+from subprocess import check_call
+import pytest
+
+@pytest.fixture(scope='session')
+def efi_eficonfig_data(u_boot_config):
+    """Set up a file system to be used in UEFI "eficonfig" command
+       tests
+
+    Args:
+        u_boot_config -- U-boot configuration.
+
+    Return:
+        A path to disk image to be used for testing
+    """
+    mnt_point = u_boot_config.persistent_data_dir + '/test_efi_eficonfig'
+    image_path = u_boot_config.persistent_data_dir + '/efi_eficonfig.img'
+
+    shutil.rmtree(mnt_point, ignore_errors=True)
+    os.mkdir(mnt_point, mode = 0o755)
+
+    with open(mnt_point + '/initrd-1.img', 'w', encoding = 'ascii') as file:
+        file.write("initrd 1")
+
+    with open(mnt_point + '/initrd-2.img', 'w', encoding = 'ascii') as file:
+        file.write("initrd 2")
+
+    shutil.copyfile(u_boot_config.build_dir + '/lib/efi_loader/initrddump.efi',
+                    mnt_point + '/initrddump.efi')
+
+    check_call(f'virt-make-fs --partition=gpt --size=+1M --type=vfat {mnt_point} {image_path}',
+               shell=True)
+
+    return image_path