oeqa/selftest/sdk: add test to verify the manifests are generated correctly

Add a test that builds a SDK with specific packages in the host and
target sections, and verifies that they're listed in the manifest.

(From OE-Core rev: a1556c801feb56b79243ba2947b74b84f674072b)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

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

@@ -0,0 +1,39 @@
+#
+# Copyright OpenEmbedded Contributors
+#
+# SPDX-License-Identifier: MIT
+#
+
+import os.path
+
+from oeqa.selftest.case import OESelftestTestCase
+from oeqa.utils.commands import bitbake, get_bb_vars
+
+class SDKTests(OESelftestTestCase):
+
+    def load_manifest(self, filename):
+        manifest = {}
+        with open(filename) as f:
+            for line in f:
+                name, arch, version = line.split(maxsplit=3)
+                manifest[name] = (version, arch)
+        return manifest
+
+    def test_sdk_manifests(self):
+        image = "core-image-minimal"
+
+        self.write_config("""
+TOOLCHAIN_HOST_TASK:append = " nativesdk-selftest-hello"
+IMAGE_INSTALL:append = " selftest-hello"
+""")
+
+        bitbake(f"{image} -c populate_sdk")
+        vars = get_bb_vars(['SDK_DEPLOY', 'TOOLCHAIN_OUTPUTNAME'], image)
+
+        path = os.path.join(vars["SDK_DEPLOY"], vars["TOOLCHAIN_OUTPUTNAME"] + ".host.manifest")
+        self.assertNotEqual(os.path.getsize(path), 0, msg="Host manifest is empty")
+        self.assertIn("nativesdk-selftest-hello", self.load_manifest(path))
+
+        path = os.path.join(vars["SDK_DEPLOY"], vars["TOOLCHAIN_OUTPUTNAME"] + ".target.manifest")
+        self.assertNotEqual(os.path.getsize(path), 0, msg="Target manifest is empty")
+        self.assertIn("selftest-hello", self.load_manifest(path))