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authorVyacheslav Yurkov <uvv.mail@gmail.com>2021-07-15 21:39:32 +0200
committerRichard Purdie <richard.purdie@linuxfoundation.org>2021-07-24 16:33:49 +0100
commit32263536762dd2885123f1dcfac7c09f735543e6 (patch)
tree902a9e6832e5b40885d68cd05c55e8a29609f65c
parentf089fe6e438011d5ea549e3334a32a5178f30cd4 (diff)
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oeqa/selftest: overlayfs unit testsmaster-next
Unit tests for overlayfs.bbclass Signed-off-by: Vyacheslav Yurkov <uvv.mail@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
-rw-r--r--meta/lib/oeqa/selftest/cases/overlayfs.py171
1 files changed, 171 insertions, 0 deletions
diff --git a/meta/lib/oeqa/selftest/cases/overlayfs.py b/meta/lib/oeqa/selftest/cases/overlayfs.py
new file mode 100644
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+++ b/meta/lib/oeqa/selftest/cases/overlayfs.py
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+#
+# SPDX-License-Identifier: MIT
+#
+
+from oeqa.selftest.case import OESelftestTestCase
+from oeqa.utils.commands import runCmd, bitbake, get_bb_var, runqemu
+
+class OverlayFSTests(OESelftestTestCase):
+ """Overlayfs class usage tests"""
+
+ def getline(self, res, line):
+ for l in res.output.split('\n'):
+ if line in l:
+ return l
+
+ def add_overlay_conf_to_machine(self):
+ machine_inc = """
+OVERLAYFS_MOUNT_POINT[mnt-overlay] = "/mnt/overlay"
+"""
+ self.set_machine_config(machine_inc)
+
+ def test_distro_features_missing(self):
+ """
+ Summary: Check that required DISTRO_FEATURES are set
+ Expected: Fail when either systemd or overlayfs are not in DISTRO_FEATURES
+ Author: Vyacheslav Yurkov <uvv.mail@gmail.com>
+ """
+
+ config = """
+IMAGE_INSTALL_append = " overlayfs-user"
+"""
+ overlayfs_recipe_append = """
+inherit overlayfs
+"""
+ self.write_config(config)
+ self.add_overlay_conf_to_machine()
+ self.write_recipeinc('overlayfs-user', overlayfs_recipe_append)
+
+ res = bitbake('core-image-minimal', ignore_status=True)
+ line = self.getline(res, "overlayfs-user was skipped: missing required distro features")
+ self.assertTrue("overlayfs" in res.output, msg=res.output)
+ self.assertTrue("systemd" in res.output, msg=res.output)
+ self.assertTrue("ERROR: Required build target 'core-image-minimal' has no buildable providers." in res.output, msg=res.output)
+
+ def test_not_all_units_installed(self):
+ """
+ Summary: Test QA check that we have required mount units in the image
+ Expected: Fail because mount unit for overlay partition is not installed
+ Author: Vyacheslav Yurkov <uvv.mail@gmail.com>
+ """
+
+ config = """
+IMAGE_INSTALL_append = " overlayfs-user"
+DISTRO_FEATURES += "systemd overlayfs"
+"""
+
+ self.write_config(config)
+ self.add_overlay_conf_to_machine()
+
+ res = bitbake('core-image-minimal', ignore_status=True)
+ line = self.getline(res, "Unit name mnt-overlay.mount not found in systemd unit directories")
+ self.assertTrue(line and line.startswith("WARNING:"), msg=res.output)
+ line = self.getline(res, "Not all mount units are installed by the BSP")
+ self.assertTrue(line and line.startswith("ERROR:"), msg=res.output)
+
+ def test_mount_unit_not_set(self):
+ """
+ Summary: Test whether mount unit was set properly
+ Expected: Fail because mount unit was not set
+ Author: Vyacheslav Yurkov <uvv.mail@gmail.com>
+ """
+
+ config = """
+IMAGE_INSTALL_append = " overlayfs-user"
+DISTRO_FEATURES += "systemd overlayfs"
+"""
+
+ self.write_config(config)
+
+ res = bitbake('core-image-minimal', ignore_status=True)
+ line = self.getline(res, "A recipe uses overlayfs class but there is no OVERLAYFS_MOUNT_POINT set in your MACHINE configuration")
+ self.assertTrue(line and line.startswith("Parsing recipes...ERROR:"), msg=res.output)
+
+ def test_wrong_mount_unit_set(self):
+ """
+ Summary: Test whether mount unit was set properly
+ Expected: Fail because not the correct flag used for mount unit
+ Author: Vyacheslav Yurkov <uvv.mail@gmail.com>
+ """
+
+ config = """
+IMAGE_INSTALL_append = " overlayfs-user"
+DISTRO_FEATURES += "systemd overlayfs"
+"""
+
+ wrong_machine_config = """
+OVERLAYFS_MOUNT_POINT[usr-share-overlay] = "/usr/share/overlay"
+"""
+
+ self.write_config(config)
+ self.set_machine_config(wrong_machine_config)
+
+ res = bitbake('core-image-minimal', ignore_status=True)
+ line = self.getline(res, "Missing required mount point for OVERLAYFS_MOUNT_POINT[mnt-overlay] in your MACHINE configuration")
+ self.assertTrue(line and line.startswith("Parsing recipes...ERROR:"), msg=res.output)
+
+ def test_correct_image(self):
+ """
+ Summary: Check that we can create an image when all parameters are
+ set correctly
+ Expected: Image is created successfully
+ Author: Vyacheslav Yurkov <uvv.mail@gmail.com>
+ """
+
+ config = """
+IMAGE_INSTALL_append = " overlayfs-user systemd-machine-units"
+DISTRO_FEATURES += "systemd overlayfs"
+
+# Use systemd as init manager
+VIRTUAL-RUNTIME_init_manager = "systemd"
+
+# enable overlayfs in the kernel
+KERNEL_EXTRA_FEATURES_append = " features/overlayfs/overlayfs.scc"
+"""
+
+ systemd_machine_unit_append = """
+SYSTEMD_SERVICE_${PN} += " \
+ mnt-overlay.mount \
+"
+
+do_install_append() {
+ install -d ${D}${systemd_system_unitdir}
+ cat <<EOT > ${D}${systemd_system_unitdir}/mnt-overlay.mount
+[Unit]
+Description=Tmpfs directory
+DefaultDependencies=no
+
+[Mount]
+What=tmpfs
+Where=/mnt/overlay
+Type=tmpfs
+Options=mode=1777,strictatime,nosuid,nodev
+
+[Install]
+WantedBy=multi-user.target
+EOT
+}
+
+"""
+
+ self.write_config(config)
+ self.add_overlay_conf_to_machine()
+ self.write_recipeinc('systemd-machine-units', systemd_machine_unit_append)
+
+ bitbake('core-image-minimal')
+
+ def getline_qemu(out, line):
+ for l in out.split('\n'):
+ if line in l:
+ return l
+
+ with runqemu('core-image-minimal') as qemu:
+ # Check that we have /mnt/overlay fs mounted as tmpfs and
+ # /usr/share/my-application as an overlay (see overlayfs-user recipe)
+ status, output = qemu.run_serial("/bin/mount -t tmpfs,overlay")
+
+ line = getline_qemu(output, "on /mnt/overlay")
+ self.assertTrue(line and line.startswith("tmpfs"), msg=output)
+
+ line = getline_qemu(output, "upperdir=/mnt/overlay/upper/usr/share/my-application")
+ self.assertTrue(line and line.startswith("overlay"), msg=output)