Provide test case for testing the `noclobber` option from zsh
This tests the absence of the bug from #615
diff --git "a/test/fast/Aliases/Running \"nvm alias \074aliasname\076 \074target\076\" again should change the target" "b/test/fast/Aliases/Running \"nvm alias \074aliasname\076 \074target\076\" again should change the target"
new file mode 100755
index 0000000..d4a8a2d
--- /dev/null
+++ "b/test/fast/Aliases/Running \"nvm alias \074aliasname\076 \074target\076\" again should change the target"
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+. ../../../nvm.sh
+
+die () { echo $@ ; exit 1; }
+
+if [ -n "$ZSH_VERSION" ]; then
+ # set clobber option in order to test that this does not produce any
+ # incompatibilities
+ setopt noclobber
+fi
+
+nvm alias test-stable-1 0.0.2
+
+nvm alias test-stable-1 | \grep -e "test-stable-1 -> 0.0.2 (-> v0.0.2)" \
+ || die "nvm alias test-stable-1 0.0.2 did not set test-stable-1 to 0.0.2"
+
+nvm alias test-stable-1 0.0.1
+
+nvm alias test-stable-1 | \grep -e "test-stable-1 -> 0.0.1 (-> v0.0.1)" \
+ || die "nvm alias test-stable-1 0.0.1 did not set test-stable-1 to 0.0.1"
