eclass/tests: add basic tests for multilib_env() expansion

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>

diff --git a/eclass/tests/multilib.sh b/eclass/tests/multilib.sh
new file mode 100755 (executable)
index 0000000..308c456
--- /dev/null
+++ b/eclass/tests/multilib.sh
@@ -0,0 +1,61 @@
+#!/bin/bash
+# Copyright 1999-2020 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+source tests-common.sh
+
+inherit multilib
+
+# Run 'multilib_env' and check what variables it expands to
+test-multilib_env() {
+       local target=$1 exp_abi=$2 exp_vars=" $3"
+       tbegin "expand-target $1"
+
+       # Reset default
+       unset MULTILIB_ABIS
+       unset DEFAULT_ABI
+       CFLAGS_default=
+       LDFLAGS_default=
+       LIBDIR_default=lib
+       CHOST_default=${target}
+       CTARGET_default=${CHOST_default}
+       LIBDIR_default=lib
+
+       multilib_env ${target}
+
+       local actual_abi="${DEFAULT_ABI}:${MULTILIB_ABIS}"
+
+       local actual_vars=""
+       local abi var v
+       for abi in ${MULTILIB_ABIS}; do
+               actual_vars+=" ${abi}? ("
+               for var in CHOST LIBDIR CFLAGS LDFLAGS; do
+                       v=${var}_${abi}
+                       actual_vars+=" ${var}=${!v}"
+               done
+               actual_vars+=" )"
+       done
+
+       [[ "${exp_abi}" == "${actual_abi}" && "${exp_vars}" == "${actual_vars}" ]]
+
+       if ! tend $? ; then
+               printf '### EXPECTED ABI: %s\n' "${exp_abi}"
+               printf '### ACTUAL   ABI: %s\n' "${actual_abi}"
+               printf '### EXPECTED VARS: %s\n' "${exp_vars}"
+               printf '### ACTUAL   VARS: %s\n' "${actual_vars}"
+       fi
+}
+
+# Pick a few interesting gargets from:
+# $ grep -h -o -R 'CHOST=.*' ../../profiles/ | sort -u
+
+test-multilib_env \
+       "x86_64-pc-linux-gnu" \
+       "amd64:amd64 x86" \
+       "amd64? ( CHOST=x86_64-pc-linux-gnu LIBDIR=lib64 CFLAGS=-m64 LDFLAGS= ) x86? ( CHOST=i686-pc-linux-gnu LIBDIR=lib CFLAGS=-m32 LDFLAGS= )"
+test-multilib_env \
+       "x86_64-pc-linux-gnux32" \
+       "x32:x32 amd64 x86" \
+       "x32? ( CHOST=x86_64-pc-linux-gnux32 LIBDIR=libx32 CFLAGS=-mx32 LDFLAGS= ) amd64? ( CHOST=x86_64-pc-linux-gnu LIBDIR=lib64 CFLAGS=-m64 LDFLAGS= ) x86? ( CHOST=i686-pc-linux-gnu LIBDIR=lib CFLAGS=-m32 LDFLAGS= )"
+
+texit