--- /dev/null
+var test = require("tap").test
+var spawn = require("child_process").spawn
+var node = process.execPath
+var npm = require.resolve("../../")
+var args = [ npm, "ls", "ceci n’est pas une package" ]
+test("ls exits non-zero when nothing found", function (t) {
+ var child = spawn(node, args)
+ child.on("exit", function (code) {
+ t.notEqual(code, 0)
+ t.end()
+ })
+})