tests: add test for msdos partitioning

Add a test for partitioning an msdos label with more then 4 partitions.
The expectation is that the 4th partition will be an extended partition
in this case.

.github/workflows/ci.yaml

@@ -128,9 +128,13 @@ jobs:
           - { name: "debian (amd64)", case: "debian", variables: "-t architecture:amd64" }
           - { name: "debian (arm64)", case: "debian", variables: "-t architecture:arm64" }
           - { name: "debian (armhf)", case: "debian", variables: "-t architecture:armhf" }
+          - { name: "partitioning", case: "partitioning" }
+          - { name: "msdos partitioning", case: "msdos" }
         exclude:
           - backend: nofakemachine
             test: { name: "partitioning", case: "partitioning" }
+          - backend: nofakemachine
+            test: { name: "msdos partitioning", case: "msdos" }
         include:
           - backend: kvm
             test: { name: "arch", case: "arch" }

tests/msdos/expected.json

@@ -0,0 +1,57 @@
+{
+   "partitiontable": {
+      "label": "dos",
+      "id": "0xdeadbeef",
+      "device": "test.img",
+      "unit": "sectors",
+      "sectorsize": 512,
+      "partitions": [
+         {
+            "node": "test.img1",
+            "start": 1,
+            "size": 500000,
+            "type": "83"
+         },{
+            "node": "test.img2",
+            "start": 500001,
+            "size": 3406250,
+            "type": "83"
+         },{
+            "node": "test.img3",
+            "start": 3906251,
+            "size": 1953125,
+            "type": "83"
+         },{
+            "node": "test.img4",
+            "start": 5859376,
+            "size": 9765624,
+            "type": "f"
+         },{
+            "node": "test.img5",
+            "start": 5859377,
+            "size": 1953124,
+            "type": "83"
+         },{
+            "node": "test.img6",
+            "start": 7812502,
+            "size": 1953124,
+            "type": "83"
+         },{
+            "node": "test.img7",
+            "start": 9765627,
+            "size": 1953124,
+            "type": "83"
+         },{
+            "node": "test.img8",
+            "start": 11718752,
+            "size": 1953124,
+            "type": "83"
+         },{
+            "node": "test.img9",
+            "start": 13671877,
+            "size": 1953123,
+            "type": "83"
+         }
+      ]
+   }
+}

tests/msdos/test.yaml

@@ -0,0 +1,56 @@
+architecture: amd64
+
+actions:
+  - action: image-partition
+    description: Partition the image
+    imagename: test.img
+    imagesize: 8G
+    partitiontype: msdos
+    diskid: deadbeef
+    mountpoints:
+      - mounpoint: /
+        partition: system
+    partitions:
+      - name: boot
+        fs: ext2
+        start: 0%
+        end: 256M
+      - name: system
+        fs: ext4
+        start: 256m
+        end: 2G
+      - name: data0
+        fs: ext4
+        start: 2G
+        end: 3G
+      - name: data1
+        fs: ext4
+        start: 3G
+        end: 4G
+      - name: data2
+        fs: ext4
+        start: 4G
+        end: 5G
+      - name: data3
+        fs: ext4
+        start: 5G
+        end: 6G
+      - name: data4
+        fs: ext4
+        start: 6G
+        end: 7G
+      - name: data5
+        fs: ext4
+        start: 7G
+        end: 8G
+
+  - action: run
+    chroot: false
+    command: >
+      cd ${ARTIFACTDIR};
+      sfdisk -J test.img | tee ${RECIPEDIR}/actual.json
+
+  - action: run
+    description: Compare expected and actual
+    chroot: false
+    command: bash -c 'diff -u <(jq . ${RECIPEDIR}/expected.json) <(jq . ${RECIPEDIR}/actual.json)'