1 files changed, 67 insertions, 0 deletions
diff --git a/tests/integration_tests/bugs/test_lp1901011.py b/tests/integration_tests/bugs/test_lp1901011.py
new file mode 100644
index 00000000..7de8bd77
--- /dev/null
+++ b/tests/integration_tests/bugs/test_lp1901011.py
@@ -0,0 +1,67 @@
+"""Integration test for LP: #1901011
+
+Ensure an ephemeral disk exists after boot.
+
+See https://github.com/canonical/cloud-init/pull/800
+"""
+import pytest
+
+from tests.integration_tests.clouds import IntegrationCloud
+
+
+@pytest.mark.azure
+@pytest.mark.parametrize(
+    "instance_type,is_ephemeral",
+    [
+        ("Standard_DS1_v2", True),
+        ("Standard_D2s_v4", False),
+    ],
+)
+def test_ephemeral(
+    instance_type, is_ephemeral, session_cloud: IntegrationCloud, setup_image
+):
+    if is_ephemeral:
+        expected_log = (
+            "Ephemeral resource disk '/dev/disk/cloud/azure_resource' exists. "
+            "Merging default Azure cloud ephemeral disk configs."
+        )
+    else:
+        expected_log = (
+            "Ephemeral resource disk '/dev/disk/cloud/azure_resource' does "
+            "not exist. Not merging default Azure cloud ephemeral disk "
+            "configs."
+        )
+
+    with session_cloud.launch(
+        launch_kwargs={"instance_type": instance_type}
+    ) as client:
+        # Verify log file
+        log = client.read_from_file("/var/log/cloud-init.log")
+        assert expected_log in log
+
+        # Verify devices
+        dev_links = client.execute("ls /dev/disk/cloud")
+        assert "azure_root" in dev_links
+        assert "azure_root-part1" in dev_links
+        if is_ephemeral:
+            assert "azure_resource" in dev_links
+            assert "azure_resource-part1" in dev_links
+
+        # Verify mounts
+        blks = client.execute("lsblk -pPo NAME,TYPE,MOUNTPOINT")
+        root_device = client.execute(
+            "realpath /dev/disk/cloud/azure_root-part1"
+        )
+        assert (
+            'NAME="{}" TYPE="part" MOUNTPOINT="/"'.format(root_device) in blks
+        )
+        if is_ephemeral:
+            ephemeral_device = client.execute(
+                "realpath /dev/disk/cloud/azure_resource-part1"
+            )
+            assert (
+                'NAME="{}" TYPE="part" MOUNTPOINT="/mnt"'.format(
+                    ephemeral_device
+                )
+                in blks
+            )