mirror of
https://github.com/vbatts/go-mtree.git
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3252a4ad82
testify makes most bog-standard test checks much easier to read and maintain, and is quite widely used. It wasn't really well known back when go-mtree was first written, but the migration is fairly straight-forward for most tests. Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
126 lines
3.4 KiB
Go
126 lines
3.4 KiB
Go
package mtree
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import (
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"os"
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"path/filepath"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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var mockTime = time.Unix(1337888823, 0)
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// Here be some dodgy testing. In particular, we have to mess around with some
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// of the FsEval functions. In particular, we change all of the FileInfos to a
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// different value.
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type mockFileInfo struct {
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os.FileInfo
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}
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func (fi mockFileInfo) Mode() os.FileMode {
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return os.FileMode(fi.FileInfo.Mode() | 0777)
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}
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func (fi mockFileInfo) ModTime() time.Time {
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return mockTime
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}
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type MockFsEval struct {
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open, lstat, readdir, keywordFunc int
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}
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// Open must have the same semantics as os.Open.
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func (fs *MockFsEval) Open(path string) (*os.File, error) {
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fs.open++
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return os.Open(path)
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}
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// Lstat must have the same semantics as os.Lstat.
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func (fs *MockFsEval) Lstat(path string) (os.FileInfo, error) {
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fs.lstat++
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fi, err := os.Lstat(path)
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return mockFileInfo{fi}, err
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}
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// Readdir must have the same semantics as calling os.Open on the given
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// path and then returning the result of (*os.File).Readdir(-1).
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func (fs *MockFsEval) Readdir(path string) ([]os.FileInfo, error) {
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fs.readdir++
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fh, err := os.Open(path)
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if err != nil {
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return nil, err
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}
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defer fh.Close()
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fis, err := fh.Readdir(-1)
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if err != nil {
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return nil, err
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}
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for idx := range fis {
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fis[idx] = mockFileInfo{fis[idx]}
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}
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return fis, nil
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}
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// KeywordFunc must return a wrapper around the provided function (in other
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// words, the returned function must refer to the same keyword).
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func (fs *MockFsEval) KeywordFunc(fn KeywordFunc) KeywordFunc {
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fs.keywordFunc++
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return fn
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}
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//gocyclo:ignore
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func TestCheckFsEval(t *testing.T) {
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dir := t.TempDir()
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content := []byte("If you hide your ignorance, no one will hit you and you'll never learn.")
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tmpfn := filepath.Join(dir, "tmpfile")
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require.NoError(t, os.WriteFile(tmpfn, content, 0451))
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// Walk this tempdir
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mock := &MockFsEval{}
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dh, err := Walk(dir, nil, append(DefaultKeywords, "sha1"), mock)
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require.NoErrorf(t, err, "walk %s (mock FsEval)", dir)
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// Make sure that mock functions have been called.
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assert.NotZero(t, mock.open, "mock.Open not called")
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assert.NotZero(t, mock.lstat, "mock.Lstat not called")
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assert.NotZero(t, mock.readdir, "mock.Readdir not called")
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assert.NotZero(t, mock.keywordFunc, "mock.KeywordFunc not called")
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// Check for sanity. This ought to pass.
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mock = &MockFsEval{}
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res, err := Check(dir, dh, nil, mock)
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require.NoErrorf(t, err, "check %s (mock FsEval)", dir)
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if !assert.Empty(t, res) {
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pprintInodeDeltas(t, res)
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}
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// Make sure that mock functions have been called.
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assert.NotZero(t, mock.open, "mock.Open not called")
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assert.NotZero(t, mock.lstat, "mock.Lstat not called")
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assert.NotZero(t, mock.readdir, "mock.Readdir not called")
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assert.NotZero(t, mock.keywordFunc, "mock.KeywordFunc not called")
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// This should FAIL.
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res, err = Check(dir, dh, nil, nil)
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require.NoErrorf(t, err, "walk %s", dir)
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if !assert.NotEmpty(t, res) {
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pprintInodeDeltas(t, res)
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}
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// Modify the metadata so you can get the right output.
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require.NoError(t, os.Chmod(tmpfn, 0777))
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require.NoError(t, os.Chtimes(tmpfn, mockTime, mockTime))
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require.NoError(t, os.Chmod(dir, 0777))
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require.NoError(t, os.Chtimes(dir, mockTime, mockTime))
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// It should now succeed.
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res, err = Check(dir, dh, nil, nil)
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require.NoErrorf(t, err, "check %s", dir)
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if !assert.Empty(t, res) {
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pprintInodeDeltas(t, res)
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}
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}
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