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package index
import (
"bytes"
"path/filepath"
"testing"
. "gopkg.in/check.v1"
"gopkg.in/src-d/go-git.v4/plumbing"
"gopkg.in/src-d/go-git.v4/plumbing/format/index"
"gopkg.in/src-d/go-git.v4/utils/merkletrie"
"gopkg.in/src-d/go-git.v4/utils/merkletrie/noder"
)
func Test(t *testing.T) { TestingT(t) }
type NoderSuite struct{}
var _ = Suite(&NoderSuite{})
func (s *NoderSuite) TestDiff(c *C) {
indexA := &index.Index{
Entries: []*index.Entry{
{Name: "foo", Hash: plumbing.NewHash("8ab686eafeb1f44702738c8b0f24f2567c36da6d")},
{Name: "bar/foo", Hash: plumbing.NewHash("8ab686eafeb1f44702738c8b0f24f2567c36da6d")},
{Name: "bar/qux", Hash: plumbing.NewHash("8ab686eafeb1f44702738c8b0f24f2567c36da6d")},
{Name: "bar/baz/foo", Hash: plumbing.NewHash("8ab686eafeb1f44702738c8b0f24f2567c36da6d")},
},
}
indexB := &index.Index{
Entries: []*index.Entry{
{Name: "foo", Hash: plumbing.NewHash("8ab686eafeb1f44702738c8b0f24f2567c36da6d")},
{Name: "bar/foo", Hash: plumbing.NewHash("8ab686eafeb1f44702738c8b0f24f2567c36da6d")},
{Name: "bar/qux", Hash: plumbing.NewHash("8ab686eafeb1f44702738c8b0f24f2567c36da6d")},
{Name: "bar/baz/foo", Hash: plumbing.NewHash("8ab686eafeb1f44702738c8b0f24f2567c36da6d")},
},
}
ch, err := merkletrie.DiffTree(NewRootNode(indexA), NewRootNode(indexB), isEquals)
c.Assert(err, IsNil)
c.Assert(ch, HasLen, 0)
}
func (s *NoderSuite) TestDiffChange(c *C) {
indexA := &index.Index{
Entries: []*index.Entry{{
Name: filepath.Join("bar", "baz", "bar"),
Hash: plumbing.NewHash("8ab686eafeb1f44702738c8b0f24f2567c36da6d"),
}},
}
indexB := &index.Index{
Entries: []*index.Entry{{
Name: filepath.Join("bar", "baz", "foo"),
Hash: plumbing.NewHash("8ab686eafeb1f44702738c8b0f24f2567c36da6d"),
}},
}
ch, err := merkletrie.DiffTree(NewRootNode(indexA), NewRootNode(indexB), isEquals)
c.Assert(err, IsNil)
c.Assert(ch, HasLen, 2)
}
func (s *NoderSuite) TestDiffDir(c *C) {
indexA := &index.Index{
Entries: []*index.Entry{{
Name: "foo",
Hash: plumbing.NewHash("8ab686eafeb1f44702738c8b0f24f2567c36da6d"),
}},
}
indexB := &index.Index{
Entries: []*index.Entry{{
Name: filepath.Join("foo", "bar"),
Hash: plumbing.NewHash("8ab686eafeb1f44702738c8b0f24f2567c36da6d"),
}},
}
ch, err := merkletrie.DiffTree(NewRootNode(indexA), NewRootNode(indexB), isEquals)
c.Assert(err, IsNil)
c.Assert(ch, HasLen, 2)
}
func (s *NoderSuite) TestDiffSameRoot(c *C) {
indexA := &index.Index{
Entries: []*index.Entry{
{Name: "foo.go", Hash: plumbing.NewHash("aab686eafeb1f44702738c8b0f24f2567c36da6d")},
{Name: "foo/bar", Hash: plumbing.NewHash("8ab686eafeb1f44702738c8b0f24f2567c36da6d")},
},
}
indexB := &index.Index{
Entries: []*index.Entry{
{Name: "foo/bar", Hash: plumbing.NewHash("8ab686eafeb1f44702738c8b0f24f2567c36da6d")},
{Name: "foo.go", Hash: plumbing.NewHash("8ab686eafeb1f44702738c8b0f24f2567c36da6d")},
},
}
ch, err := merkletrie.DiffTree(NewRootNode(indexA), NewRootNode(indexB), isEquals)
c.Assert(err, IsNil)
c.Assert(ch, HasLen, 1)
}
var empty = make([]byte, 24)
func isEquals(a, b noder.Hasher) bool {
if bytes.Equal(a.Hash(), empty) || bytes.Equal(b.Hash(), empty) {
return false
}
return bytes.Equal(a.Hash(), b.Hash())
}
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