support/testing/tests: fix tests to use infra.img_round_power2()

All the tests that are using if=sd as a Qemu options are changed to
use infra.img_round_power2() instead of simply extending the size of
the image to the next MB boundary, which is not longer sufficient with
Qemu >= 5.1.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
[yann.morin.1998@free.fr: drop now-useless imports]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

support/testing/tests/core/test_file_capabilities.py

@@ -1,5 +1,4 @@
 import os
-import subprocess
 
 import infra.basetest
 
@@ -28,7 +27,7 @@ class TestFileCapabilities(infra.basetest.BRTest):
 
     def test_run(self):
         img = os.path.join(self.builddir, "images", "rootfs.squashfs")
-        subprocess.call(["truncate", "-s", "%1M", img])
+        infra.img_round_power2(img)
 
         self.emulator.boot(arch="armv7",
                            kernel=os.path.join(self.builddir, "images", "zImage"),

support/testing/tests/fs/test_squashfs.py

@@ -1,5 +1,4 @@
 import os
-import subprocess
 
 import infra.basetest
 
@@ -22,7 +21,7 @@ class TestSquashfs(infra.basetest.BRTest):
         self.assertEqual(out[3], "Compression lz4")
 
         img = os.path.join(self.builddir, "images", "rootfs.squashfs")
-        subprocess.call(["truncate", "-s", "%1M", img])
+        infra.img_round_power2(img)
 
         self.emulator.boot(arch="armv7",
                            kernel="builtin",

support/testing/tests/init/base.py

@@ -1,5 +1,4 @@
 import os
-import subprocess
 import infra.basetest
 
 
@@ -7,7 +6,7 @@ class InitSystemBase(infra.basetest.BRTest):
 
     def start_emulator(self, fs_type, kernel=None, dtb=None, init=None):
         img = os.path.join(self.builddir, "images", "rootfs.{}".format(fs_type))
-        subprocess.call(["truncate", "-s", "%1M", img])
+        infra.img_round_power2(img)
 
         options = ["-drive",
                    "file={},if=sd,format=raw".format(img),