test: add bootupd.gen-metadata stage test

Since the stage depends on quite a specific tree state (ostree prepped
tree with boot files), we can't really unit test it any simpler than
generating a tree with and without running the stage and diffing the
tree.

test/data/stages/bootupd.gen-metadata/a.mpp.yaml

@@ -0,0 +1,37 @@
+---
+version: '2'
+pipelines:
+  - mpp-import-pipelines:
+      path: ../manifests/fedora-vars.ipp.yaml
+  - mpp-import-pipeline:
+      path: ../manifests/fedora-build-v2.ipp.yaml
+      id: build
+    runner:
+      mpp-format-string: org.osbuild.fedora{release}
+  - name: tree
+    build: name:build
+    stages:
+      - type: org.osbuild.rpm
+        inputs:
+          packages:
+            type: org.osbuild.files
+            origin: org.osbuild.source
+            mpp-depsolve:
+              architecture: $arch
+              module-platform-id: $module_platform_id
+              repos:
+                mpp-eval: repos
+              packages:
+                - bootupd
+                - kernel
+                - rpm-ostree
+                - selinux-policy-targeted
+                - shim-x64
+        options:
+          dbpath: /usr/share/rpm
+          ostree_booted: true
+          gpgkeys:
+            mpp-eval: gpgkeys
+          exclude:
+            docs: true
+      - type: org.osbuild.ostree.preptree

test/data/stages/bootupd.gen-metadata/b.mpp.yaml

@@ -0,0 +1,38 @@
+---
+version: '2'
+pipelines:
+  - mpp-import-pipelines:
+      path: ../manifests/fedora-vars.ipp.yaml
+  - mpp-import-pipeline:
+      path: ../manifests/fedora-build-v2.ipp.yaml
+      id: build
+    runner:
+      mpp-format-string: org.osbuild.fedora{release}
+  - name: tree
+    build: name:build
+    stages:
+      - type: org.osbuild.rpm
+        inputs:
+          packages:
+            type: org.osbuild.files
+            origin: org.osbuild.source
+            mpp-depsolve:
+              architecture: $arch
+              module-platform-id: $module_platform_id
+              repos:
+                mpp-eval: repos
+              packages:
+                - bootupd
+                - kernel
+                - rpm-ostree
+                - selinux-policy-targeted
+                - shim-x64
+        options:
+          dbpath: /usr/share/rpm
+          ostree_booted: true
+          gpgkeys:
+            mpp-eval: gpgkeys
+          exclude:
+            docs: true
+      - type: org.osbuild.ostree.preptree
+      - type: org.osbuild.bootupd.gen-metadata

test/data/stages/bootupd.gen-metadata/diff.json

@@ -0,0 +1,35 @@
+{
+  "added_files": [
+    "/usr/lib/bootupd",
+    "/usr/lib/bootupd/updates",
+    "/usr/lib/bootupd/updates/BIOS.json",
+    "/usr/lib/bootupd/updates/EFI",
+    "/usr/lib/bootupd/updates/EFI.json",
+    "/usr/lib/bootupd/updates/EFI/BOOT",
+    "/usr/lib/bootupd/updates/EFI/BOOT/BOOTX64.EFI",
+    "/usr/lib/bootupd/updates/EFI/BOOT/fbx64.efi",
+    "/usr/lib/bootupd/updates/EFI/fedora",
+    "/usr/lib/bootupd/updates/EFI/fedora/BOOTX64.CSV",
+    "/usr/lib/bootupd/updates/EFI/fedora/grubx64.efi",
+    "/usr/lib/bootupd/updates/EFI/fedora/mmx64.efi",
+    "/usr/lib/bootupd/updates/EFI/fedora/shim.efi",
+    "/usr/lib/bootupd/updates/EFI/fedora/shimx64.efi"
+  ],
+  "deleted_files": [
+    "/usr/lib/ostree-boot/efi/EFI",
+    "/usr/lib/ostree-boot/efi/EFI/BOOT",
+    "/usr/lib/ostree-boot/efi/EFI/BOOT/BOOTX64.EFI",
+    "/usr/lib/ostree-boot/efi/EFI/BOOT/fbx64.efi",
+    "/usr/lib/ostree-boot/efi/EFI/fedora",
+    "/usr/lib/ostree-boot/efi/EFI/fedora/BOOTX64.CSV",
+    "/usr/lib/ostree-boot/efi/EFI/fedora/grubx64.efi",
+    "/usr/lib/ostree-boot/efi/EFI/fedora/mmx64.efi",
+    "/usr/lib/ostree-boot/efi/EFI/fedora/shim.efi",
+    "/usr/lib/ostree-boot/efi/EFI/fedora/shimx64.efi",
+    "/usr/lib/ostree-boot/grub2",
+    "/usr/lib/ostree-boot/grub2/fonts",
+    "/usr/lib/ostree-boot/grub2/fonts/unicode.pf2",
+    "/usr/lib/ostree-boot/grub2/grubenv"
+  ],
+  "differences": {}
+}