[PATCH] tests: add compatibility layer

[mp39590@gmail.com]

From: Mikhail <mp39590@gmail.com>

Make test-lib-common.sh load test-lib-<$PLATFORM>.sh to create
additional shim for platform specifics.

Use test-lib-FREEBSD.sh to call GNU utilities instead of native ones.
---
 configure                | 3 +++
 test/README              | 6 ++++++
 test/test-lib-FREEBSD.sh | 8 ++++++++
 test/test-lib-common.sh  | 5 +++++
 4 files changed, 22 insertions(+)
 create mode 100644 test/test-lib-FREEBSD.sh

diff --git a/configure b/configure
index 72db26df..7ba9b9eb 100755
--- a/configure
+++ b/configure
@@ -1203,6 +1203,9 @@ NOTMUCH_PYTHON=${python}
 # Are the ruby development files (and ruby) available? If not skip
 # building/testing ruby bindings.
 NOTMUCH_HAVE_RUBY_DEV=${have_ruby_dev}
+
+# Platform we are run on
+PLATFORM=${platform}
 EOF
 
 # Finally, after everything configured, inform the user how to continue.
diff --git a/test/README b/test/README
index 104a120e..8376616f 100644
--- a/test/README
+++ b/test/README
@@ -33,6 +33,12 @@ chosen directory to your PATH before running the tests.
 
 e.g. env PATH=/opt/gnu/bin:$PATH make test
 
+For FreeBSD you will need to install coreutils, which provides GNU
+versions of basic utils like 'date' or 'wc'. Also you will need to
+install latest gdb from ports or packages and provide path to it in
+NOTMUCH_GDB variable before executing the tests, native FreeBSD gdb will
+not work.
+
 Running Tests
 -------------
 The easiest way to run tests is to say "make test", (or simply run the
diff --git a/test/test-lib-FREEBSD.sh b/test/test-lib-FREEBSD.sh
new file mode 100644
index 00000000..b8039705
--- /dev/null
+++ b/test/test-lib-FREEBSD.sh
@@ -0,0 +1,8 @@
+# Use GNU Coreutils instead of a native BSD utils
+
+date () { gdate "$@"; }
+base64 () { gbase64 "$@"; }
+gdb () { $NOTMUCH_GDB "$@"; }
+wc () { gwc "$@"; }
+sed () { gsed "$@"; }
+sha256sum () { gsha256sum "$@"; }
diff --git a/test/test-lib-common.sh b/test/test-lib-common.sh
index 03ef1d2d..1c8d7f6e 100644
--- a/test/test-lib-common.sh
+++ b/test/test-lib-common.sh
@@ -66,6 +66,11 @@ export LD_LIBRARY_PATH
 # configure output
 . $notmuch_path/sh.config || exit 1
 
+# load OS specifics
+if [ -e ./test-lib-$PLATFORM.sh ]; then
+	. ./test-lib-$PLATFORM.sh
+fi
+
 if test -n "$valgrind"
 then
 	make_symlink () {
-- 
2.11.0