frostfs-sdk-go/netmap/policy_test.go

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package netmap_test
import (
"strings"
"testing"
. "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
netmaptest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap/test"
"github.com/stretchr/testify/require"
)
func TestPlacementPolicyEncoding(t *testing.T) {
v := netmaptest.PlacementPolicy()
t.Run("binary", func(t *testing.T) {
var v2 PlacementPolicy
require.NoError(t, v2.Unmarshal(v.Marshal()))
require.Equal(t, v, v2)
})
t.Run("json", func(t *testing.T) {
data, err := v.MarshalJSON()
require.NoError(t, err)
var v2 PlacementPolicy
require.NoError(t, v2.UnmarshalJSON(data))
require.Equal(t, v, v2)
})
}
func TestPlacementPolicyWriteString(t *testing.T) {
testCases := []struct {
name string
input string
output string // If the output is empty, make it equal to input.
}{
{
name: "no compound operators",
input: `REP 1
CBF 1
SELECT 1 FROM Color
FILTER Color EQ Red AS Color`,
},
{
name: "no brackets in single level same-operator chain",
input: `REP 1
CBF 1
SELECT 1 FROM Color
FILTER Color EQ Red OR Color EQ Blue OR Color EQ Green AS Color`,
},
{
name: "no brackets aroung higher precedence op",
input: `REP 1
CBF 1
SELECT 1 FROM Color
FILTER Color EQ Red OR Color EQ Blue AND Color NE Green AS Color`,
},
{
name: "no brackets aroung higher precedence op, even if present in the input",
input: `REP 1
CBF 1
SELECT 1 FROM Color
FILTER Color EQ Red OR (Color EQ Blue AND Color NE Green) AS Color`,
output: `REP 1
CBF 1
SELECT 1 FROM Color
FILTER Color EQ Red OR Color EQ Blue AND Color NE Green AS Color`,
},
{
name: "brackets aroung lower precedence op",
input: `REP 1
CBF 1
SELECT 1 FROM Color
FILTER (Color EQ Red OR Color EQ Blue) AND Color NE Green AS Color`,
},
{
name: "no extra brackets for bracketed same-operator chain",
input: `REP 1
CBF 1
SELECT 1 FROM Color
FILTER (Color EQ Red OR Color EQ Blue OR Color EQ Yellow) AND Color NE Green AS Color`,
},
}
for _, tc := range testCases {
var p PlacementPolicy
require.NoError(t, p.DecodeString(tc.input))
var sb strings.Builder
require.NoError(t, p.WriteStringTo(&sb))
if tc.output == "" {
require.Equal(t, tc.input, sb.String())
} else {
require.Equal(t, tc.output, sb.String())
var p1 PlacementPolicy
require.NoError(t, p1.DecodeString(tc.output))
require.Equal(t, p, p1)
}
}
}
func TestDecodeSelectFilterExpr(t *testing.T) {
for _, s := range []string{
"SELECT 1 FROM *",
"FILTER Color EQ 'Red' AS RedNode",
`
FILTER Color EQ 'Red' AS RedNode
FILTER @RedNode AND Shape EQ 'Cirle' AS RedCircleNode
`,
`
SELECT 1 FROM RedCircleNode
FILTER Color EQ 'Red' AS RedNode
FILTER @RedNode AND Shape EQ 'Cirle' AS RedCircleNode
`,
`
CBF 1
SELECT 1 FROM RedCircleNode
FILTER Color EQ 'Red' AS RedNode
FILTER @RedNode AND Shape EQ 'Cirle' AS RedCircleNode
`,
} {
_, err := DecodeSelectFilterString(s)
require.NoError(t, err)
}
}