support/testing/tests/package/test_flutter.py: new runtime test

This is a simple test that builds and runs the futter-gallery application and
checks if the service is active.

Signed-off-by: Adam Duskett <adam.duskett@amarulasolutions.com>
[yann.morin.1998@free.fr: fix flake8 warnings]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

DEVELOPERS

@@ -37,6 +37,7 @@ F:	package/flutter-engine/
 F:	package/flutter-gallery/
 F:	package/flutter-pi/
 F:	package/flutter-sdk-bin/
+F:	support/testing/tests/package/test_flutter.py
 
 N:	Adam Heinrich <adam@adamh.cz>
 F:	package/jack1/

support/testing/tests/package/test_flutter.py

@@ -0,0 +1,54 @@
+import os
+import infra.basetest
+
+
+class TestFlutter(infra.basetest.BRTest):
+    config = f"""
+        BR2_aarch64=y
+        BR2_TOOLCHAIN_EXTERNAL=y
+        BR2_TOOLCHAIN_EXTERNAL_BOOTLIN=y
+        BR2_ROOTFS_OVERLAY="{infra.filepath("tests/package/test_flutter/overlay")}"
+        BR2_PER_PACKAGE_DIRECTORIES=y
+        BR2_INIT_SYSTEMD=y
+        BR2_LINUX_KERNEL=y
+        BR2_LINUX_KERNEL_CUSTOM_VERSION=y
+        BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.1.54"
+        BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
+        BR2_LINUX_KERNEL_NEEDS_HOST_LIBELF=y
+        BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/aarch64-virt/linux.config"
+        BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="{infra.filepath("tests/package/test_flutter/linux-vkms.fragment")}"
+        BR2_PACKAGE_LIBDRM=y
+        BR2_PACKAGE_MESA3D=y
+        BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_SWRAST=y
+        BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_VIRGL=y
+        BR2_PACKAGE_MESA3D_OPENGL_ES=y
+        BR2_PACKAGE_FLUTTER_PI=y
+        BR2_PACKAGE_FLUTTER_PI_RAW_KEYBOARD_PLUGIN=y
+        BR2_PACKAGE_FLUTTER_PI_TEXT_INPUT_PLUGIN=y
+        BR2_PACKAGE_FLUTTER_GALLERY=y
+        BR2_PACKAGE_FLUTTER_ENGINE=y
+        BR2_TARGET_ROOTFS_EXT2=y
+        BR2_TARGET_ROOTFS_EXT2_4=y
+        BR2_TARGET_ROOTFS_EXT2_SIZE="512M"
+        # BR2_TARGET_ROOTFS_TAR is not set
+        """
+
+    def test_run(self):
+        img = os.path.join(self.builddir, "images", "rootfs.ext2")
+        kern = os.path.join(self.builddir, "images", "Image")
+        self.emulator.boot(
+            arch="aarch64",
+            kernel=kern,
+            kernel_cmdline=["root=/dev/vda console=ttyAMA0"],
+            options=["-M", "virt",
+                     "-cpu", "cortex-a57",
+                     "-m", "512M",
+                     "-smp", "4",
+                     "-vga", "std",
+                     "-vnc", "none",
+                     "-drive", f"file={img},if=virtio,format=raw"])
+        self.emulator.login()
+        cmd = "systemctl is-active flutter-gallery"
+        output, exit_code = self.emulator.run(cmd, 10)
+        self.assertEqual(exit_code, 0)
+        self.assertEqual(output[0], "active")

support/testing/tests/package/test_flutter/linux-vkms.fragment

@@ -0,0 +1,2 @@
+CONFIG_DEBUG_FS=y
+CONFIG_DRM_VKMS=y

support/testing/tests/package/test_flutter/overlay/etc/systemd/system/multi-user.target.wants/flutter-gallery.service

@@ -0,0 +1 @@
+../../../../usr/lib/systemd/system/flutter-gallery.service

support/testing/tests/package/test_flutter/overlay/usr/lib/systemd/system/flutter-gallery.service

@@ -0,0 +1,11 @@
+[Unit]
+Description=flutter-gallery daemon
+After=dbus.service systemd-udevd.service
+
+[Service]
+ExecStart=/usr/bin/flutter-pi --release /usr/share/flutter/gallery/release/
+Restart=always
+KillMode=process
+
+[Install]
+WantedBy=multi-user.target