image_typedep.py: Add a test that ensures conversion type deps get added

Add a test that ensures if IMAGE_TYPEDEP_* contains a conversion type,
that the corresponding CONVERSION_DEPENDS_ for that type gets added to
the dependency tree for do_rootfs.

(From OE-Core rev: 9cf9c725f7d534c326ffd95ec539b041f4ad286f)

Signed-off-by: Randy Witt <randy.e.witt@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oeqa/selftest/image_typedep.py

@@ -0,0 +1,51 @@
+import os
+
+from oeqa.selftest.base import oeSelfTest
+from oeqa.utils.commands import bitbake
+
+class ImageTypeDepTests(oeSelfTest):
+
+    # Verify that when specifying a IMAGE_TYPEDEP_ of the form "foo.bar" that
+    # the conversion type bar gets added as a dep as well
+    def test_conversion_typedep_added(self):
+
+        self.write_recipeinc('emptytest', """
+# Try to empty out the default dependency list
+PACKAGE_INSTALL = ""
+DISTRO_EXTRA_RDEPENDS=""
+
+LICENSE = "MIT"
+IMAGE_FSTYPES = "testfstype"
+
+IMAGE_TYPES_MASKED += "testfstype"
+IMAGE_TYPEDEP_testfstype = "tar.bz2"
+
+inherit image
+
+""")
+        # First get the dependency that should exist for bz2, it will look
+        # like CONVERSION_DEPENDS_bz2="somedep"
+        result = bitbake('-e emptytest')
+
+        for line in result.output.split('\n'):
+            if line.startswith('CONVERSION_DEPENDS_bz2'):
+                dep = line.split('=')[1].strip('"')
+                break
+
+        # Now get the dependency task list and check for the expected task
+        # dependency
+        bitbake('-g emptytest')
+
+        taskdependsfile = os.path.join(self.builddir, 'task-depends.dot')
+        dep =  dep + ".do_populate_sysroot"
+        depfound = False
+        expectedline = '"emptytest.do_rootfs" -> "{}"'.format(dep)
+
+        with open(taskdependsfile, "r") as f:
+            for line in f:
+                if line.strip() == expectedline:
+                    depfound = True
+                    break
+
+        if not depfound:
+            raise AssertionError("\"{}\" not found".format(expectedline))