refactor: command - subpackages

internal/command/string/setnx_test.go

@@ -0,0 +1,90 @@
+package string_test
+
+import (
+	"testing"
+
+	"github.com/nalgeon/redka/internal/command"
+	str "github.com/nalgeon/redka/internal/command/string"
+	"github.com/nalgeon/redka/internal/redis"
+	"github.com/nalgeon/redka/internal/testx"
+)
+
+func TestSetNXParse(t *testing.T) {
+	tests := []struct {
+		name string
+		args [][]byte
+		want str.SetNX
+		err  error
+	}{
+		{
+			name: "setnx",
+			args: command.BuildArgs("setnx"),
+			want: str.SetNX{},
+			err:  redis.ErrInvalidArgNum,
+		},
+		{
+			name: "setnx name",
+			args: command.BuildArgs("setnx", "name"),
+			want: str.SetNX{},
+			err:  redis.ErrInvalidArgNum,
+		},
+		{
+			name: "setnx name alice",
+			args: command.BuildArgs("setnx", "name", "alice"),
+			want: str.SetNX{Key: "name", Value: []byte("alice")},
+			err:  nil,
+		},
+		{
+			name: "setnx name alice 60",
+			args: command.BuildArgs("setnx", "name", "alice", "60"),
+			want: str.SetNX{},
+			err:  redis.ErrInvalidArgNum,
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			cmd, err := command.Parse(test.args)
+			testx.AssertEqual(t, err, test.err)
+			if err == nil {
+				cm := cmd.(*str.SetNX)
+				testx.AssertEqual(t, cm.Key, test.want.Key)
+				testx.AssertEqual(t, cm.Value, test.want.Value)
+			}
+		})
+	}
+}
+
+func TestSetNXExec(t *testing.T) {
+	t.Run("create", func(t *testing.T) {
+		db, red := getDB(t)
+		defer db.Close()
+
+		cmd := command.MustParse[*str.SetNX]("setnx name alice")
+		conn := redis.NewFakeConn()
+		res, err := cmd.Run(conn, red)
+		testx.AssertNoErr(t, err)
+		testx.AssertEqual(t, res, true)
+		testx.AssertEqual(t, conn.Out(), "1")
+
+		name, _ := db.Str().Get("name")
+		testx.AssertEqual(t, name.String(), "alice")
+	})
+
+	t.Run("update", func(t *testing.T) {
+		db, red := getDB(t)
+		defer db.Close()
+
+		_ = db.Str().Set("name", "alice")
+
+		cmd := command.MustParse[*str.SetNX]("setnx name bob")
+		conn := redis.NewFakeConn()
+		res, err := cmd.Run(conn, red)
+		testx.AssertNoErr(t, err)
+		testx.AssertEqual(t, res, false)
+		testx.AssertEqual(t, conn.Out(), "0")
+
+		name, _ := db.Str().Get("name")
+		testx.AssertEqual(t, name.String(), "alice")
+	})
+}