1 files changed, 58 insertions, 0 deletions
diff --git a/test/units/assert.sh b/test/units/assert.sh
new file mode 100755
index 0000000..2f4d93a
--- /dev/null
+++ b/test/units/assert.sh
@@ -0,0 +1,58 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: LGPL-2.1-or-later
+
+# utility functions for shell tests
+
+assert_true() {(
+    set +ex
+
+    local rc
+
+    "$@"
+    rc=$?
+    if [[ $rc -ne 0 ]]; then
+        echo "FAIL: command '$*' failed with exit code $rc" >&2
+        exit 1
+    fi
+)}
+
+
+assert_eq() {(
+    set +ex
+
+    if [[ "${1?}" != "${2?}" ]]; then
+        echo "FAIL: expected: '$2' actual: '$1'" >&2
+        exit 1
+    fi
+)}
+
+assert_in() {(
+    set +ex
+
+    if ! [[ "${2?}" =~ ${1?} ]]; then
+        echo "FAIL: '$1' not found in:" >&2
+        echo "$2" >&2
+        exit 1
+    fi
+)}
+
+assert_not_in() {(
+    set +ex
+
+    if [[ "${2?}" =~ ${1?} ]]; then
+        echo "FAIL: '$1' found in:" >&2
+        echo "$2" >&2
+        exit 1
+    fi
+)}
+
+assert_rc() {(
+    set +ex
+
+    local rc exp="${1?}"
+
+    shift
+    "$@"
+    rc=$?
+    assert_eq "$rc" "$exp"
+)}