zrepl/pruning/keep_last_n_test.go
2020-09-02 22:45:44 +02:00

104 lines
2.1 KiB
Go

package pruning
import (
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestKeepLastN(t *testing.T) {
o := func(minutes int) time.Time {
return time.Unix(123, 0).Add(time.Duration(minutes) * time.Minute)
}
inputs := map[string][]Snapshot{
"s1": []Snapshot{
stubSnap{name: "1", date: o(10)},
stubSnap{name: "2", date: o(20)},
stubSnap{name: "3", date: o(15)},
stubSnap{name: "4", date: o(30)},
stubSnap{name: "5", date: o(30)},
},
"s2": []Snapshot{},
}
tcs := map[string]testCase{
"keep2": {
inputs: inputs["s1"],
rules: []KeepRule{
MustKeepLastN(2, ""),
},
expDestroy: map[string]bool{
"1": true, "2": true, "3": true,
},
},
"keep1OfTwoWithSameTime": { // Keep one of two with same time
inputs: inputs["s1"],
rules: []KeepRule{
MustKeepLastN(1, ""),
},
expDestroy: map[string]bool{"1": true, "2": true, "3": true, "4": true},
},
"keepMany": {
inputs: inputs["s1"],
rules: []KeepRule{
MustKeepLastN(100, ""),
},
expDestroy: map[string]bool{},
},
"empty_input": {
inputs: inputs["s2"],
rules: []KeepRule{
MustKeepLastN(100, ""),
},
expDestroy: map[string]bool{},
},
"empty_regex": {
inputs: inputs["s1"],
rules: []KeepRule{
MustKeepLastN(4, ""),
},
expDestroy: map[string]bool{
"1": true,
},
},
"multiple_regexes": {
inputs: []Snapshot{
stubSnap{"a1", false, o(10)},
stubSnap{"b1", false, o(11)},
stubSnap{"a2", false, o(20)},
stubSnap{"b2", false, o(21)},
stubSnap{"a3", false, o(30)},
stubSnap{"b3", false, o(31)},
},
rules: []KeepRule{
MustKeepLastN(2, "^a"),
MustKeepLastN(2, "^b"),
},
expDestroy: map[string]bool{
"a1": true,
"b1": true,
},
},
}
testTable(tcs, t)
t.Run("mustBePositive", func(t *testing.T) {
var err error
_, err = NewKeepLastN(0, "foo")
assert.Error(t, err)
_, err = NewKeepLastN(-5, "foo")
assert.Error(t, err)
})
t.Run("emptyRegexAllowed", func(t *testing.T) {
_, err := NewKeepLastN(23, "")
require.NoError(t, err)
})
}