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zfs: fix/update tests for diffs for createtxg & guid

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This commit is contained in:
Christian Schwarz 2017-07-09 00:08:50 +02:00
parent 4b373fbd95
commit 9ab6f18f82
2 changed files with 47 additions and 28 deletions
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4
zfs/datasetpath_visitor_test.go
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@ -27,9 +27,9 @@ func makeVisitRecorder() (v DatasetPathsVisitor, rec *visitRecorder) {
rec = &visitRecorder{
visits: make([]DatasetPathVisit, 0),
}
v = func(v DatasetPathVisit) error {
v = func(v DatasetPathVisit) bool {
rec.visits = append(rec.visits, v)
return nil
return true
}
return
}

63
zfs/diff_test.go
View File

@ -2,23 +2,42 @@ package zfs
import (
"github.com/stretchr/testify/assert"
"strconv"
"strings"
"testing"
"time"
)
func fsvlist(fsv ...string) (r []FilesystemVersion) {
r = make([]FilesystemVersion, len(fsv))
for i, f := range fsv {
// parse the id from fsvlist. it is used to derivce Guid,CreateTXG and Creation attrs
split := strings.Split(f, ",")
if len(split) != 2 {
panic("invalid fsv spec")
}
id, err := strconv.Atoi(split[1])
if err != nil {
panic(err)
}
if strings.HasPrefix(f, "#") {
r[i] = FilesystemVersion{
Name: strings.TrimPrefix(f, "#"),
Type: Bookmark,
Guid: uint64(id),
CreateTXG: uint64(id),
Creation: time.Unix(0, 0).Add(time.Duration(id) * time.Second),
}
} else if strings.HasPrefix(f, "@") {
r[i] = FilesystemVersion{
Name: strings.TrimPrefix(f, "@"),
Type: Snapshot,
Guid: uint64(id),
CreateTXG: uint64(id),
Creation: time.Unix(0, 0).Add(time.Duration(id) * time.Second),
}
} else {
panic("invalid character")
@ -38,33 +57,33 @@ func TestMakeFilesystemDiff_IncrementalSnapshots(t *testing.T) {
l := fsvlist
// basic functionality
doTest(l("@a", "@b"), l("@a", "@b", "@c", "@d"), func(d FilesystemDiff) {
assert.Equal(t, l("@b", "@c", "@d"), d.IncrementalPath)
doTest(l("@a,1", "@b,2"), l("@a,1", "@b,2", "@c,3", "@d,4"), func(d FilesystemDiff) {
assert.Equal(t, l("@b,2", "@c,3", "@d,4"), d.IncrementalPath)
})
// no common ancestor
doTest(l(), l("@a"), func(d FilesystemDiff) {
doTest(l(), l("@a,1"), func(d FilesystemDiff) {
assert.Nil(t, d.IncrementalPath)
assert.False(t, d.Diverged)
assert.Equal(t, l("@a"), d.MRCAPathRight)
assert.EqualValues(t, d.Conflict, ConflictNoCommonAncestor)
assert.Equal(t, l("@a,1"), d.MRCAPathRight)
})
doTest(l("@a", "@b"), l("@c", "@d"), func(d FilesystemDiff) {
doTest(l("@a,1", "@b,2"), l("@c,3", "@d,4"), func(d FilesystemDiff) {
assert.Nil(t, d.IncrementalPath)
assert.False(t, d.Diverged)
assert.Equal(t, l("@c", "@d"), d.MRCAPathRight)
assert.EqualValues(t, d.Conflict, ConflictNoCommonAncestor)
assert.Equal(t, l("@c,3", "@d,4"), d.MRCAPathRight)
})
// divergence is detected
doTest(l("@a", "@b1"), l("@a", "@b2"), func(d FilesystemDiff) {
doTest(l("@a,1", "@b1,2"), l("@a,1", "@b2,3"), func(d FilesystemDiff) {
assert.Nil(t, d.IncrementalPath)
assert.True(t, d.Diverged)
assert.Equal(t, l("@a", "@b1"), d.MRCAPathLeft)
assert.Equal(t, l("@a", "@b2"), d.MRCAPathRight)
assert.EqualValues(t, d.Conflict, ConflictDiverged)
assert.Equal(t, l("@a,1", "@b1,2"), d.MRCAPathLeft)
assert.Equal(t, l("@a,1", "@b2,3"), d.MRCAPathRight)
})
// gaps before most recent common ancestor do not matter
doTest(l("@a", "@b", "@c"), l("@a", "@c", "@d"), func(d FilesystemDiff) {
assert.Equal(t, l("@c", "@d"), d.IncrementalPath)
doTest(l("@a,1", "@b,2", "@c,3"), l("@a,1", "@c,3", "@d,4"), func(d FilesystemDiff) {
assert.Equal(t, l("@c,3", "@d,4"), d.IncrementalPath)
})
}
@ -73,21 +92,21 @@ func TestMakeFilesystemDiff_BookmarksSupport(t *testing.T) {
l := fsvlist
// bookmarks are used
doTest(l("@a"), l("#a", "@b"), func(d FilesystemDiff) {
assert.Equal(t, l("#a", "@b"), d.IncrementalPath)
doTest(l("@a,1"), l("#a,1", "@b,2"), func(d FilesystemDiff) {
assert.Equal(t, l("#a,1", "@b,2"), d.IncrementalPath)
})
// boomarks are stripped from IncrementalPath (cannot send incrementally)
doTest(l("@a"), l("#a", "#b", "@c"), func(d FilesystemDiff) {
assert.Equal(t, l("#a", "@c"), d.IncrementalPath)
doTest(l("@a,1"), l("#a,1", "#b,2", "@c,3"), func(d FilesystemDiff) {
assert.Equal(t, l("#a,1", "@c,3"), d.IncrementalPath)
})
// test that snapshots are preferred over bookmarks in IncrementalPath
doTest(l("@a"), l("#a", "@a", "@b"), func(d FilesystemDiff) {
assert.Equal(t, l("@a", "@b"), d.IncrementalPath)
doTest(l("@a,1"), l("#a,1", "@a,1", "@b,2"), func(d FilesystemDiff) {
assert.Equal(t, l("@a,1", "@b,2"), d.IncrementalPath)
})
doTest(l("@a"), l("@a", "#a", "@b"), func(d FilesystemDiff) {
assert.Equal(t, l("@a", "@b"), d.IncrementalPath)
doTest(l("@a,1"), l("@a,1", "#a,1", "@b,2"), func(d FilesystemDiff) {
assert.Equal(t, l("@a,1", "@b,2"), d.IncrementalPath)
})
}