Yocto 2.4

Move OpenBMC to Yocto 2.4(rocko)

Tested: Built and verified Witherspoon and Palmetto images
Change-Id: I12057b18610d6fb0e6903c60213690301e9b0c67
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/import-layers/yocto-poky/meta/lib/oeqa/selftest/cases/oescripts.py b/import-layers/yocto-poky/meta/lib/oeqa/selftest/cases/oescripts.py
new file mode 100644
index 0000000..1ee7537
--- /dev/null
+++ b/import-layers/yocto-poky/meta/lib/oeqa/selftest/cases/oescripts.py
@@ -0,0 +1,15 @@
+from oeqa.selftest.case import OESelftestTestCase
+from oeqa.selftest.cases.buildhistory import BuildhistoryBase
+from oeqa.utils.commands import Command, runCmd, bitbake, get_bb_var, get_test_layer
+from oeqa.core.decorator.oeid import OETestID
+
+class BuildhistoryDiffTests(BuildhistoryBase):
+
+    @OETestID(295)
+    def test_buildhistory_diff(self):
+        target = 'xcursor-transparent-theme'
+        self.run_buildhistory_operation(target, target_config="PR = \"r1\"", change_bh_location=True)
+        self.run_buildhistory_operation(target, target_config="PR = \"r0\"", change_bh_location=False, expect_error=True)
+        result = runCmd("buildhistory-diff -p %s" % get_bb_var('BUILDHISTORY_DIR'))
+        expected_output = 'PR changed from "r1" to "r0"'
+        self.assertTrue(expected_output in result.output, msg="Did not find expected output: %s" % result.output)