oeqa/sdk: Simplify test specification and discovery

Simplify how tests are specified and discovered for different SDK configurations
to allow per-layer customization.

* Introduce `TESTSDK_CASE_DIRS` variable to specify test directory types,
  replacing the need to modify the default_cases class member

* Discover tests from configured layers using a common discovery pattern
  (`<LAYER_DIR>/lib/oeqa/<dirname>/cases`) where `<dirname>` is specified in `TESTSDK_CASE_DIRS`

* The buildtools directories were renamed to follow the common discovery pattern
(`<LAYER_DIR>/lib/oeqa/<dirname>/cases`) for consistency across all SDK configurations.

  meta/lib/oeqa/
  ├── sdk/cases/              # Standard SDK: dirname="sdk"
  ├── buildtools/cases/       # Buildtools: dirname="buildtools"
  └── buildtools-docs/cases/  # Buildtools-docs: dirname="buildtools-docs"

  meta-mingw/lib/oeqa/
  └── sdkmingw/cases/         # MinGW: dirname="sdkmingw"

  meta-foo/lib/oeqa/
  └── sdk/cases/              # Standard SDK: dirname="sdk"

Tested by:

1. Adding new tests using the default discovery pattern `<LAYER_DIR>/lib/oeqa/sdk/cases` and
   verifying they are discovered and executed.

2. Verifying existing SDK configuration tests work (requires -c populate_sdk first):
   * Standard SDK: `bitbake core-image-minimal -c testsdk`
   * Buildtools tarball: `bitbake buildtools-tarball -c testsdk`
   * Buildtools docs tarball: `bitbake buildtools-docs-tarball -c testsdk`
   * Mingw SDK: (SDKMACHINE = "x86_64-mingw32") `bitbake core-image-minimal -c testsdk`

(From OE-Core rev: bde94c128c0b4e7e1ebea40f582b4dd6dcc965ff)

Signed-off-by: Thune Tran <thune.a.tran@boeing.com>
Signed-off-by: Chuck Wolber <chuck.wolber@boeing.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 0 insertions, 32 deletions

diff --git a/meta/lib/oeqa/sdk/buildtools-cases/build.py b/meta/lib/oeqa/sdk/buildtools-cases/build.py
deleted file mode 100644
index c85c32496b..0000000000
--- a/meta/lib/oeqa/sdk/buildtools-cases/build.py
+++ /dev/null
@@ -1,32 +0,0 @@
-#
-# Copyright OpenEmbedded Contributors
-#
-# SPDX-License-Identifier: MIT
-#
-
-import os, tempfile
-import time
-from oeqa.sdk.case import OESDKTestCase
-from oeqa.utils.subprocesstweak import errors_have_output
-errors_have_output()
-
-class BuildTests(OESDKTestCase):
-    """
-    Verify that bitbake can build virtual/libc inside the buildtools.
-    """
-    def test_libc(self):
-        with tempfile.TemporaryDirectory(prefix='bitbake-build-', dir=self.tc.sdk_dir) as testdir:
-            corebase = self.td['COREBASE']
-
-            self._run('. %s/oe-init-build-env %s' % (corebase, testdir))
-            with open(os.path.join(testdir, 'conf', 'local.conf'), 'ta') as conf:
-                conf.write('\n')
-                conf.write('DL_DIR = "%s"\n' % self.td['DL_DIR'])
-
-            try:
-                self._run('. %s/oe-init-build-env %s && bitbake virtual/libc' % (corebase, testdir))
-            finally:
-                delay = 10
-                while delay and (os.path.exists(testdir + "/bitbake.lock") or os.path.exists(testdir + "/cache/hashserv.db-wal")):
-                    time.sleep(1)
-                    delay = delay - 1