docs(test): describe Genesis test boundaries

xCAT-test/bats/README.md

@@ -43,3 +43,17 @@ The two legacy Red Hat version cases use GNU awk. CI installs both interpreters.
 Package-manager commands are test doubles, so these cases check selection,
 arguments and error handling, not repository
 availability or package installation.
+
+## Genesis startup
+
+`genesis_ib_modules.bats` and `genesis_secondary_dhcp.bats` run the complete
+`doxcat` script in a private filesystem and network namespace. They replace
+external services and device commands, then check the boot interface and the
+IPv4 and IPv6 DHCP requests. They do not contact a DHCP server or a BMC.
+
+The startup cases require Linux, bats-core 1.4 or newer, Bubblewrap, Bash, GNU
+core utilities, grep, sed, awk and permission to create user namespaces.
+Missing Linux prerequisites fail these cases. Non-Linux hosts skip them.
+The RPM prerequisite check requires `rpmspec` but does not use the sandbox.
+Run containers with an init process to
+reap children created by deliberate-fault tests.

xCAT-test/native/README.md

@@ -96,3 +96,36 @@ EL6 or Ubuntu 14.04 environment. These cases do not qualify native SUSE package
 transactions, dependency resolution, a running xcatd daemon, or machine boot.
 The namespace fixture targets merged-/usr hosts. Container runs need namespace
 permissions and an init process that reaps orphaned children.
+
+## Genesis OpenEmbedded
+
+`genesis_metadata.py` runs inside a Genesis KAS shell. It uses BitBake to
+evaluate machine and package policy, install local-file recipes into temporary
+directories, generate extension manifests and reject invalid extension
+metadata. It does not extract or evaluate recipe source fragments.
+
+For example, from the source checkout:
+
+```sh
+export KAS_WORK_DIR=/path/to/kas-work
+export KAS_BUILD_DIR=/path/to/kas-build-x86_64
+source_tree=$PWD
+kas dump --format json xCAT-genesis-base/oe/kas/x86_64.yml >"${KAS_BUILD_DIR}.json"
+kas shell xCAT-genesis-base/oe/kas/x86_64.yml -c \
+    "GENESIS_ARCHITECTURE=x86_64 GENESIS_KAS_CONFIG='${KAS_BUILD_DIR}.json' python3 '${source_tree}/xCAT-test/native/genesis_metadata.py'"
+```
+
+Use the pinned KAS requirements and OpenEmbedded host prerequisites from
+`xCAT-genesis-base/oe`. Run as an ordinary user with an executable temporary
+directory. BitBake's build directory must use a supported local filesystem.
+The `genesis_openembedded` workflow runs the metadata tests for x86, x86_64,
+ppc64, ppc64le, armv7hf, aarch64, riscv64 and s390x.
+
+`python3 xCAT-test/native/genesis_console.py` builds and installs the complete
+console with Meson, then runs the installed program. It requires a C compiler,
+Meson, Ninja, pkg-config, and development packages for Newt and systemd.
+
+The unit test retains checks of the vendored release key, requested kernel
+fragments and console service configuration. The BATS tests retain runtime,
+console, hardware and packet behavior. None of these checks replaces a full
+image build, inspection of its resolved kernel configuration or a boot test.