Files
redka/internal/command/list/lpop_test.go
2025-07-13 13:05:18 +05:00

104 lines
2.3 KiB
Go

package list
import (
"testing"
"github.com/nalgeon/be"
"github.com/nalgeon/redka/internal/core"
"github.com/nalgeon/redka/internal/redis"
)
func TestLPopParse(t *testing.T) {
tests := []struct {
cmd string
want LPop
err error
}{
{
cmd: "lpop",
want: LPop{},
err: redis.ErrInvalidArgNum,
},
{
cmd: "lpop key",
want: LPop{key: "key"},
err: nil,
},
{
cmd: "lpop key 5",
want: LPop{},
err: redis.ErrSyntaxError,
},
}
for _, test := range tests {
t.Run(test.cmd, func(t *testing.T) {
cmd, err := redis.Parse(ParseLPop, test.cmd)
be.Equal(t, err, test.err)
if err == nil {
be.Equal(t, cmd.key, test.want.key)
} else {
be.Equal(t, cmd, test.want)
}
})
}
}
func TestLPopExec(t *testing.T) {
t.Run("empty list", func(t *testing.T) {
red := getRedka(t)
cmd := redis.MustParse(ParseLPop, "lpop key")
conn := redis.NewFakeConn()
res, err := cmd.Run(conn, red)
be.Err(t, err, nil)
be.Equal(t, res.(core.Value), core.Value(nil))
be.Equal(t, conn.Out(), "(nil)")
})
t.Run("pop elem", func(t *testing.T) {
red := getRedka(t)
_, _ = red.List().PushBack("key", "elem")
cmd := redis.MustParse(ParseLPop, "lpop key")
conn := redis.NewFakeConn()
res, err := cmd.Run(conn, red)
be.Err(t, err, nil)
be.Equal(t, res.(core.Value), core.Value("elem"))
be.Equal(t, conn.Out(), "elem")
})
t.Run("pop multiple", func(t *testing.T) {
red := getRedka(t)
_, _ = red.List().PushBack("key", "one")
_, _ = red.List().PushBack("key", "two")
_, _ = red.List().PushBack("key", "thr")
{
cmd := redis.MustParse(ParseLPop, "lpop key")
conn := redis.NewFakeConn()
res, err := cmd.Run(conn, red)
be.Err(t, err, nil)
be.Equal(t, res.(core.Value), core.Value("one"))
be.Equal(t, conn.Out(), "one")
}
{
cmd := redis.MustParse(ParseLPop, "lpop key")
conn := redis.NewFakeConn()
res, err := cmd.Run(conn, red)
be.Err(t, err, nil)
be.Equal(t, res.(core.Value), core.Value("two"))
be.Equal(t, conn.Out(), "two")
}
})
t.Run("key type mismatch", func(t *testing.T) {
red := getRedka(t)
_ = red.Str().Set("key", "str")
cmd := redis.MustParse(ParseLPop, "lpop key")
conn := redis.NewFakeConn()
res, err := cmd.Run(conn, red)
be.Err(t, err, nil)
be.Equal(t, res.(core.Value), core.Value(nil))
be.Equal(t, conn.Out(), "(nil)")
})
}