Function TestSrandmember

IceFireDB-PubSub/test/cmd_set_test.go:363–436

Test SRANDMEMBER

(t *testing.T)

// Test SRANDMEMBER
func TestSrandmember(t *testing.T) {
	server.Clear()
	c, err := proto.Dial(server.Addr())
	ok(t, err)
	defer c.Close()
	s := server.Direct()

	s.SetAdd("s", "aap", "noot", "mies")

	s.Seed(42)
	// No count
	{
		res, err := c.Do("SRANDMEMBER", "s")
		ok(t, err)
		assert(t, res == proto.String("aap") ||
			res == proto.String("noot") ||
			res == proto.String("mies"),
			"srandmember got something",
		)
	}

	// Positive count
	mustDo(t, c,
		"SRANDMEMBER", "s", "2",
		proto.Strings("noot", "mies"),
	)

	// Negative count
	mustDo(t, c,
		"SRANDMEMBER", "s", "-2",
		proto.Strings("aap", "mies"),
	)

	// a nonexisting key
	mustNil(t, c,
		"SRANDMEMBER", "nosuch",
	)

	t.Run("errors", func(t *testing.T) {
		s.SetAdd("chk", "aap", "noot")
		s.Set("str", "value")

		mustDo(t, c,
			"SRANDMEMBER",
			proto.Error(errWrongNumber("srandmember")),
		)
		mustDo(t, c,
			"SRANDMEMBER", "chk", "noint",
			proto.Error("ERR value is not an integer or out of range"),
		)
		mustDo(t, c,
			"SRANDMEMBER", "chk", "1", "toomanu",
			proto.Error("ERR syntax error"),
		)

		mustDo(t, c,
			"SRANDMEMBER", "str",
			proto.Error(msgWrongType),