mirror of
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94 lines
2.4 KiB
Go
94 lines
2.4 KiB
Go
package zfs
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import (
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"github.com/stretchr/testify/assert"
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"strings"
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"testing"
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)
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func fsvlist(fsv ...string) (r []FilesystemVersion) {
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r = make([]FilesystemVersion, len(fsv))
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for i, f := range fsv {
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if strings.HasPrefix(f, "#") {
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r[i] = FilesystemVersion{
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Name: strings.TrimPrefix(f, "#"),
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Type: Bookmark,
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}
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} else if strings.HasPrefix(f, "@") {
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r[i] = FilesystemVersion{
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Name: strings.TrimPrefix(f, "@"),
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Type: Snapshot,
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}
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} else {
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panic("invalid character")
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}
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}
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return
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}
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func doTest(left, right []FilesystemVersion, validate func(d FilesystemDiff)) {
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var d FilesystemDiff
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d = MakeFilesystemDiff(left, right)
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validate(d)
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}
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func TestMakeFilesystemDiff_IncrementalSnapshots(t *testing.T) {
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l := fsvlist
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// basic functionality
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doTest(l("@a", "@b"), l("@a", "@b", "@c", "@d"), func(d FilesystemDiff) {
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assert.Equal(t, l("@b", "@c", "@d"), d.IncrementalPath)
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})
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// no common ancestor
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doTest(l(), l("@a"), func(d FilesystemDiff) {
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assert.Nil(t, d.IncrementalPath)
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assert.False(t, d.Diverged)
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assert.Equal(t, l("@a"), d.MRCAPathRight)
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})
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doTest(l("@a", "@b"), l("@c", "@d"), func(d FilesystemDiff) {
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assert.Nil(t, d.IncrementalPath)
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assert.False(t, d.Diverged)
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assert.Equal(t, l("@c", "@d"), d.MRCAPathRight)
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})
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// divergence is detected
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doTest(l("@a", "@b1"), l("@a", "@b2"), func(d FilesystemDiff) {
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assert.Nil(t, d.IncrementalPath)
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assert.True(t, d.Diverged)
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assert.Equal(t, l("@a", "@b1"), d.MRCAPathLeft)
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assert.Equal(t, l("@a", "@b2"), d.MRCAPathRight)
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})
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// gaps before most recent common ancestor do not matter
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doTest(l("@a", "@b", "@c"), l("@a", "@c", "@d"), func(d FilesystemDiff) {
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assert.Equal(t, l("@c", "@d"), d.IncrementalPath)
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})
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}
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func TestMakeFilesystemDiff_BookmarksSupport(t *testing.T) {
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l := fsvlist
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// bookmarks are used
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doTest(l("@a"), l("#a", "@b"), func(d FilesystemDiff) {
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assert.Equal(t, l("#a", "@b"), d.IncrementalPath)
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})
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// boomarks are stripped from IncrementalPath (cannot send incrementally)
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doTest(l("@a"), l("#a", "#b", "@c"), func(d FilesystemDiff) {
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assert.Equal(t, l("#a", "@c"), d.IncrementalPath)
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})
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// test that snapshots are preferred over bookmarks in IncrementalPath
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doTest(l("@a"), l("#a", "@a", "@b"), func(d FilesystemDiff) {
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assert.Equal(t, l("@a", "@b"), d.IncrementalPath)
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})
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doTest(l("@a"), l("@a", "#a", "@b"), func(d FilesystemDiff) {
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assert.Equal(t, l("@a", "@b"), d.IncrementalPath)
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})
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}
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