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package git
import (
"errors"
"testing"
)
func TestDiffTreeToTree(t *testing.T) {
repo := createTestRepo(t)
defer repo.Free()
//defer os.RemoveAll(repo.Workdir())
_, originalTreeId := seedTestRepo(t, repo)
originalTree, err := repo.LookupTree(originalTreeId)
checkFatal(t, err)
_, newTreeId := updateReadme(t, repo, "file changed\n")
newTree, err := repo.LookupTree(newTreeId)
checkFatal(t, err)
diff, err := repo.DiffTreeToTree(originalTree, newTree)
checkFatal(t, err)
if diff == nil {
t.Fatal("no diff returned")
}
files := make([]string, 0)
err = diff.ForEachFile(func(file *DiffDelta) error {
files = append(files, file.OldFile.Path)
return nil
})
checkFatal(t, err)
if len(files) != 1 {
t.Fatal("Incorrect number of files in diff")
}
if files[0] != "README" {
t.Fatal("File in diff was expected to be README")
}
errTest := errors.New("test error")
err = diff.ForEachFile(func(file *DiffDelta) error {
return errTest
})
if err != errTest {
t.Fatal("Expected custom error to be returned")
}
}
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