tests: Add basic test of predicates.

diff --git a/tests/00-basic-predicate.gl b/tests/00-basic-predicate.gl
new file mode 100644 (file)
index 0000000..c4d4506
--- /dev/null
+++ b/tests/00-basic-predicate.gl
@@ -0,0 +1,40 @@
+# Goals test.
+# Copyright (C) 2020 Richard W.M. Jones
+# Copyright (C) 2020 Red Hat Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+# Test of basic predicates.
+
+predicate is-cow (name) = {
+    if ! test %goals_final_check; then
+        echo %name needs transformation
+        exit 99
+    else
+        echo %name is a cow
+        exit 0
+    fi
+}
+
+predicate is-sheep (name) = {
+    echo %name is a sheep
+}
+
+goal all = : is-cow ("daisy"), is-cow ("dylan"), is-cow ("florence")
+
+goal cowofsheep (name) =
+is-cow ("%name") : is-sheep ("%name") {
+    echo transform sheep %< to cow %@
+}

diff --git a/tests/00-basic-predicate.sh b/tests/00-basic-predicate.sh
new file mode 100755 (executable)
index 0000000..547e0b1
--- /dev/null
+++ b/tests/00-basic-predicate.sh
@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+# Goals test.
+# Copyright (C) 2020 Richard W.M. Jones
+# Copyright (C) 2020 Red Hat Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+set -e
+
+goals -s -f 00-basic-predicate.gl > 00-basic-predicate.out
+
+for animal in daisy dylan florence; do
+    if test "$(grep "$animal" 00-basic-predicate.out)" != "$animal is a sheep
+$animal needs transformation
+transform sheep $animal to cow $animal
+$animal is a cow"; then
+        echo "$0: output failed for $animal:"
+        cat 00-basic-predicate.out
+        exit 1
+    fi
+done
+
+rm 00-basic-predicate.out