[Buildroot] [PATCH 1/1] support/testing: fs: new cramfs runtime test

[Buildroot] [PATCH 1/1] support/testing: fs: new cramfs runtime test

[Julien Olivain via buildroot]

Signed-off-by: Julien Olivain <ju.o@free.fr>
---
Patch tested in:
https://gitlab.com/jolivain/buildroot/-/jobs/15915576004
---
 DEVELOPERS                                    |  2 +
 support/testing/tests/fs/test_cramfs.py       | 42 +++++++++++++++++++
 .../fs/test_cramfs/linux-cramfs.fragment      |  1 +
 3 files changed, 45 insertions(+)
 create mode 100644 support/testing/tests/fs/test_cramfs.py
 create mode 100644 support/testing/tests/fs/test_cramfs/linux-cramfs.fragment

diff --git a/DEVELOPERS b/DEVELOPERS
index 4460523447..586407a200 100644
--- a/DEVELOPERS
+++ b/DEVELOPERS
@@ -1856,6 +1856,8 @@ F:	support/testing/tests/boot/test_optee_os.py
 F:	support/testing/tests/boot/test_optee_os/
 F:	support/testing/tests/fs/test_btrfs.py
 F:	support/testing/tests/fs/test_btrfs/
+F:	support/testing/tests/fs/test_cramfs.py
+F:	support/testing/tests/fs/test_cramfs/
 F:	support/testing/tests/fs/test_erofs.py
 F:	support/testing/tests/fs/test_erofs/
 F:	support/testing/tests/fs/test_xfs.py
diff --git a/support/testing/tests/fs/test_cramfs.py b/support/testing/tests/fs/test_cramfs.py
new file mode 100644
index 0000000000..8beb27f4ab
--- /dev/null
+++ b/support/testing/tests/fs/test_cramfs.py
@@ -0,0 +1,42 @@
+import os
+
+import infra.basetest
+
+
+class TestCramfs(infra.basetest.BRTest):
+    kern_frag = \
+        infra.filepath("tests/fs/test_cramfs/linux-cramfs.fragment")
+    config = \
+        f"""
+        BR2_aarch64=y
+        BR2_TOOLCHAIN_EXTERNAL=y
+        BR2_LINUX_KERNEL=y
+        BR2_LINUX_KERNEL_CUSTOM_VERSION=y
+        BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.18.44"
+        BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
+        BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/aarch64-virt/linux.config"
+        BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="{kern_frag}"
+        BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
+        BR2_PACKAGE_CRAMFS=y
+        BR2_TARGET_ROOTFS_CRAMFS=y
+        # BR2_TARGET_ROOTFS_TAR is not set
+        """
+
+    def test_run(self):
+        disk = os.path.join(self.builddir, "images", "rootfs.cramfs")
+        kern = os.path.join(self.builddir, "images", "Image")
+        bootargs = ["root=/dev/vda"]
+        qemu_opts = ["-M", "virt", "-cpu", "cortex-a57", "-m", "512M",
+                     "-drive", f"file={disk},if=virtio,format=raw"]
+        self.emulator.boot(arch="aarch64",
+                           kernel=kern,
+                           kernel_cmdline=bootargs,
+                           options=qemu_opts)
+        self.emulator.login()
+
+        # We check our root filesystem is in cramfs format.
+        cmd = "mount | grep '/dev/root on / type cramfs'"
+        self.assertRunOk(cmd)
+
+        # We run cramfsck on the filesystem.
+        self.assertRunOk("cramfsck -v /dev/vda")
diff --git a/support/testing/tests/fs/test_cramfs/linux-cramfs.fragment b/support/testing/tests/fs/test_cramfs/linux-cramfs.fragment
new file mode 100644
index 0000000000..91bc54bed3
--- /dev/null
+++ b/support/testing/tests/fs/test_cramfs/linux-cramfs.fragment
@@ -0,0 +1 @@
+CONFIG_CRAMFS=y
-- 
2.55.0

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Re: [Buildroot] [PATCH 1/1] support/testing: fs: new cramfs runtime test

[Julien Olivain via buildroot]

On 15/08/2026 15:04, Julien Olivain via buildroot wrote:
> Signed-off-by: Julien Olivain <ju.o@free.fr>

Applied to master.
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