[PATCH v7 5/9] oe-selftest/cases/wic.py: update WicTestCase

[Trevor Woerner <twoerner@gmail.com>]

The wic oe-selftest defines its own class, WicTestCase, for handling
setup, teardown, and other pieces needed to run the individual wic
oe-selftests. Now that wic is a tool external to oe-core, it, and the
tools on which it depends, need to be built natively before the test
can be run, need to be made available to the tests, and need to remain
available while the test is running.

Signed-off-by: Trevor Woerner <twoerner@gmail.com>
---
changes in v7:
- none

changes in v6:
- none

changes in v5:
- rebase with master
- split back out into smaller patches

v4: skipped to align/combine with other patch set

changes in v3:
- squashed into 1 large patch

changes in v2:
- none
---
 meta/lib/oeqa/selftest/cases/wic.py | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/meta/lib/oeqa/selftest/cases/wic.py b/meta/lib/oeqa/selftest/cases/wic.py
index 7ad61fa700f7..e9c28baf51eb 100644
--- a/meta/lib/oeqa/selftest/cases/wic.py
+++ b/meta/lib/oeqa/selftest/cases/wic.py
@@ -57,12 +57,22 @@ class WicTestCase(OESelftestTestCase):
 
     image_is_ready = False
     wicenv_cache = {}
+    oldpath = ""
+    envfile = ""
 
     def setUpLocal(self):
         """This code is executed before each test method."""
         self.resultdir = os.path.join(self.builddir, "wic-tmp")
         super(WicTestCase, self).setUpLocal()
 
+        config = 'DEPENDS:pn-core-image-minimal += " %s"' % get_bb_var("DEPENDS", "wic-tools")
+        self.append_config(config)
+        bitbake('wic-tools core-image-minimal core-image-minimal-mtdutils')
+        WicTestCase.oldpath = os.environ['PATH']
+        os.environ['PATH'] = get_bb_var("PATH", "wic-tools") + ":" + os.environ['PATH']
+        image = 'core-image-minimal'
+        WicTestCase.envfile = os.path.join(self._get_image_env_path(image), image) + '.env'
+
         # Do this here instead of in setUpClass as the base setUp does some
         # clean up which can result in the native tools built earlier in
         # setUpClass being unavailable.
@@ -78,6 +88,7 @@ class WicTestCase(OESelftestTestCase):
         """Remove resultdir as it may contain images."""
         rmtree(self.resultdir, ignore_errors=True)
         super(WicTestCase, self).tearDownLocal()
+        os.environ['PATH'] = WicTestCase.oldpath
 
     def _get_image_env_path(self, image):
         """Generate and obtain the path to <image>.env"""
-- 
2.51.0