imagefeatures: Add a test for various hypervisor formats

We add a new test that will create core-image-minimal for wic.vmdk,
wic.vdi and wic.qcow2.  We then confirm via qemu-img that the resulting
file is of the expected type.

Cc: Ed Bartosh <ed.bartosh@linux.intel.com>
(From OE-Core rev: 1392fdeaf6acc7c8d2ff9a5a2bf6ef2f5928957d)

Signed-off-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oeqa/selftest/cases/imagefeatures.py

@@ -3,6 +3,7 @@ from oeqa.utils.commands import runCmd, bitbake, get_bb_var, runqemu
 from oeqa.core.decorator.oeid import OETestID
 from oeqa.utils.sshcontrol import SSHControl
 import os
+import json
 
 class ImageFeatures(OESelftestTestCase):
 
@@ -130,6 +131,40 @@ class ImageFeatures(OESelftestTestCase):
         # check if the resulting gzip is valid
         self.assertTrue(runCmd('gzip -t %s' % gzip_path))
 
+    def test_hypervisor_fmts(self):
+        """
+        Summary:     Check various hypervisor formats
+        Expected:    1. core-image-minimal can be built with vmdk, vdi and
+                        qcow2 support.
+                     2. qemu-img says each image has the expected format
+        Product:     oe-core
+        Author:      Tom Rini <trini@konsulko.com>
+        """
+
+        img_types = [ 'vmdk', 'vdi', 'qcow2' ]
+        features = ""
+        for itype in img_types:
+            features += 'IMAGE_FSTYPES += "wic.%s"\n' % itype
+        self.write_config(features)
+
+        image_name = 'core-image-minimal'
+        bitbake(image_name)
+
+        deploy_dir_image = get_bb_var('DEPLOY_DIR_IMAGE')
+        link_name = get_bb_var('IMAGE_LINK_NAME', image_name)
+        for itype in img_types:
+            image_path = os.path.join(deploy_dir_image, "%s.wic.%s" %
+                                      (link_name, itype))
+
+            # check if result image file is in deploy directory
+            self.assertTrue(os.path.exists(image_path))
+
+            # check if result image is vmdk
+            sysroot = get_bb_var('STAGING_DIR_NATIVE', 'core-image-minimal')
+            result = runCmd('qemu-img info --output json %s' % image_path,
+                            native_sysroot=sysroot)
+            self.assertTrue(json.loads(result.output).get('format') == itype)
+
     def test_long_chain_conversion(self):
         """
         Summary:     Check for chaining many CONVERSION_CMDs together