support/testing: add fs tests

This commit adds a number of test cases for various filesystem formats:
ext2/3/4, iso9660, jffs2, squashfs, ubi/ubifs and yaffs2. All of them
except yaffs2 are runtime tested. The iso9660 set of test cases is
particularly rich, testing the proper operation of the iso9660 support
with all of grub, grub2 and isolinux.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

support/testing/tests/fs/test_iso9660.py

@@ -0,0 +1,162 @@
+import os
+
+import infra.basetest
+
+BASIC_CONFIG = \
+"""
+BR2_x86_pentium4=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
+BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
+BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-i386-pentium4-full-2015.05-496-g85945aa.tar.bz2"
+BR2_TOOLCHAIN_EXTERNAL_GCC_4_9=y
+BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_2=y
+BR2_TOOLCHAIN_EXTERNAL_LOCALE=y
+# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
+BR2_TOOLCHAIN_EXTERNAL_INET_RPC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
+BR2_TARGET_GENERIC_GETTY_PORT="ttyS0"
+BR2_TARGET_GENERIC_GETTY_BAUDRATE_115200=y
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.0"
+BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
+BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="{}"
+# BR2_TARGET_ROOTFS_TAR is not set
+""".format(infra.filepath("conf/minimal-x86-qemu-kernel.config"))
+
+def test_mount_internal_external(emulator, builddir, internal=True):
+    img = os.path.join(builddir, "images", "rootfs.iso9660")
+    emulator.boot(arch="i386", options=["-cdrom", img])
+    emulator.login()
+
+    if internal:
+        cmd = "mount | grep 'rootfs on / type rootfs'"
+    else:
+        cmd = "mount | grep '/dev/root on / type iso9660'"
+
+    _, exit_code = emulator.run(cmd)
+    return exit_code
+
+def test_touch_file(emulator):
+    _, exit_code = emulator.run("touch test")
+    return exit_code
+
+#
+# Grub 2
+#
+
+class TestIso9660Grub2External(infra.basetest.BRTest):
+    config = BASIC_CONFIG + \
+"""
+BR2_TARGET_ROOTFS_ISO9660=y
+# BR2_TARGET_ROOTFS_ISO9660_INITRD is not set
+BR2_TARGET_GRUB2=y
+BR2_TARGET_GRUB2_BOOT_PARTITION="cd"
+BR2_TARGET_GRUB2_BUILTIN_MODULES="boot linux ext2 fat part_msdos part_gpt normal biosdisk iso9660"
+BR2_TARGET_ROOTFS_ISO9660_BOOT_MENU="{}"
+""".format(infra.filepath("conf/grub2.cfg"))
+
+    def test_run(self):
+        exit_code = test_mount_internal_external(self.emulator,
+                                                 self.builddir, internal=False)
+        self.assertEqual(exit_code, 0)
+
+        exit_code = test_touch_file(self.emulator)
+        self.assertEqual(exit_code, 1)
+
+class TestIso9660Grub2Internal(infra.basetest.BRTest):
+    config = BASIC_CONFIG + \
+"""
+BR2_TARGET_ROOTFS_ISO9660=y
+BR2_TARGET_ROOTFS_ISO9660_INITRD=y
+BR2_TARGET_GRUB2=y
+BR2_TARGET_GRUB2_BOOT_PARTITION="cd"
+BR2_TARGET_GRUB2_BUILTIN_MODULES="boot linux ext2 fat part_msdos part_gpt normal biosdisk iso9660"
+BR2_TARGET_ROOTFS_ISO9660_BOOT_MENU="{}"
+""".format(infra.filepath("conf/grub2.cfg"))
+
+    def test_run(self):
+        exit_code = test_mount_internal_external(self.emulator,
+                                                 self.builddir, internal=True)
+        self.assertEqual(exit_code, 0)
+
+        exit_code = test_touch_file(self.emulator)
+        self.assertEqual(exit_code, 0)
+
+#
+# Grub
+#
+
+class TestIso9660GrubExternal(infra.basetest.BRTest):
+    config = BASIC_CONFIG + \
+"""
+BR2_TARGET_ROOTFS_ISO9660=y
+# BR2_TARGET_ROOTFS_ISO9660_INITRD is not set
+BR2_TARGET_GRUB=y
+BR2_TARGET_ROOTFS_ISO9660_BOOT_MENU="{}"
+""".format(infra.filepath("conf/grub-menu.lst"))
+
+    def test_run(self):
+        exit_code = test_mount_internal_external(self.emulator,
+                                                 self.builddir, internal=False)
+        self.assertEqual(exit_code, 0)
+
+        exit_code = test_touch_file(self.emulator)
+        self.assertEqual(exit_code, 1)
+
+class TestIso9660GrubInternal(infra.basetest.BRTest):
+    config = BASIC_CONFIG + \
+"""
+BR2_TARGET_ROOTFS_ISO9660=y
+BR2_TARGET_GRUB=y
+BR2_TARGET_ROOTFS_ISO9660_BOOT_MENU="{}"
+""".format(infra.filepath("conf/grub-menu.lst"))
+
+    def test_run(self):
+        exit_code = test_mount_internal_external(self.emulator,
+                                                 self.builddir, internal=True)
+        self.assertEqual(exit_code, 0)
+
+        exit_code = test_touch_file(self.emulator)
+        self.assertEqual(exit_code, 0)
+
+#
+# Syslinux
+#
+
+class TestIso9660SyslinuxExternal(infra.basetest.BRTest):
+    config = BASIC_CONFIG + \
+"""
+BR2_TARGET_ROOTFS_ISO9660=y
+# BR2_TARGET_ROOTFS_ISO9660_INITRD is not set
+BR2_TARGET_ROOTFS_ISO9660_HYBRID=y
+BR2_TARGET_ROOTFS_ISO9660_BOOT_MENU="{}"
+BR2_TARGET_SYSLINUX=y
+""".format(infra.filepath("conf/isolinux.cfg"))
+
+    def test_run(self):
+        exit_code = test_mount_internal_external(self.emulator,
+                                                 self.builddir, internal=False)
+        self.assertEqual(exit_code, 0)
+
+        exit_code = test_touch_file(self.emulator)
+        self.assertEqual(exit_code, 1)
+
+class TestIso9660SyslinuxInternal(infra.basetest.BRTest):
+    config = BASIC_CONFIG + \
+"""
+BR2_TARGET_ROOTFS_ISO9660=y
+BR2_TARGET_ROOTFS_ISO9660_INITRD=y
+BR2_TARGET_ROOTFS_ISO9660_HYBRID=y
+BR2_TARGET_ROOTFS_ISO9660_BOOT_MENU="{}"
+BR2_TARGET_SYSLINUX=y
+""".format(infra.filepath("conf/isolinux.cfg"))
+
+    def test_run(self):
+        exit_code = test_mount_internal_external(self.emulator,
+                                                 self.builddir, internal=True)
+        self.assertEqual(exit_code, 0)
+
+        exit_code = test_touch_file(self.emulator)
+        self.assertEqual(exit_code, 0)