Add stub_called_with and related functions

test/__stub_call-test.sh

@@ -0,0 +1,21 @@
+#! /usr/bin/env bash
+source "test-helper.sh"
+
+#
+# __stub_call() tests.
+#
+
+# Adds call to stub call list.
+STUB_INDEX=("uname=0")
+STUB_0_CALLS=()
+__stub_call "uname"
+__stub_call "uname" -r
+__stub_call "uname" -r -a
+assert 'echo ${STUB_0_CALLS[@]}' "<none> -r -r -a"
+assert 'echo ${STUB_0_CALLS[0]}' "<none>"
+assert 'echo ${STUB_0_CALLS[1]}' "-r"
+assert 'echo ${STUB_0_CALLS[2]}' "-r -a"
+
+
+# End of tests.
+assert_end "__stub_call()"