Exemple #1
0
// SHA256sum creates the sha256 checksum for the specified file.
func SHA256sum(c *gc.C, path string) (int64, string) {
	if strings.HasPrefix(path, "file://") {
		path = path[len("file://"):]
	}
	hash, size, err := utils.ReadFileSHA256(path)
	c.Assert(err, gc.IsNil)
	return size, hash
}
Exemple #2
0
// verify returns an error unless a file exists at path with a hex-encoded
// SHA256 matching digest.
func verify(path, digest string) error {
	hash, _, err := utils.ReadFileSHA256(path)
	if err != nil {
		return err
	}
	if hash != digest {
		return fmt.Errorf("bad SHA256 of %q", path)
	}
	return nil
}
Exemple #3
0
func (*utilsSuite) TestCommandString(c *gc.C) {
	type test struct {
		args     []string
		expected string
	}
	tests := []test{
		{nil, ""},
		{[]string{"a"}, "a"},
		{[]string{"a$"}, `"a\$"`},
		{[]string{""}, ""},
		{[]string{"\\"}, `"\\"`},
		{[]string{"a", "'b'"}, "a 'b'"},
		{[]string{"a b"}, `"a b"`},
		{[]string{"a", `"b"`}, `a "\"b\""`},
		{[]string{"a", `"b\"`}, `a "\"b\\\""`},
		{[]string{"a\n"}, "\"a\n\""},
	}
	for i, test := range tests {
		c.Logf("test %d: %q", i, test.args)
		result := utils.CommandString(test.args...)
		c.Assert(result, gc.Equals, test.expected)
	}
}

func (*utilsSuite) TestReadSHA256AndReadFileSHA256(c *gc.C) {
	sha256Tests := []struct {
		content string
		sha256  string
	}{{
		content: "",
		sha256:  "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
	}, {
		content: "some content",
		sha256:  "290f493c44f5d63d06b374d0a5abd292fae38b92cab2fae5efefe1b0e9347f56",
	}, {
		content: "foo",
		sha256:  "2c26b46b68ffc68ff99b453c1d30413413422d706483bfa0f98a5e886266e7ae",
	}, {
		content: "Foo",
		sha256:  "1cbec737f863e4922cee63cc2ebbfaafcd1cff8b790d8cfd2e6a5d550b648afa",
	}, {
		content: "multi\nline\ntext\nhere",
		sha256:  "c384f11c0294280792a44d9d6abb81f9fd991904cb7eb851a88311b04114231e",
	}}

	tempDir := c.MkDir()
	for i, test := range sha256Tests {
		c.Logf("test %d: %q -> %q", i, test.content, test.sha256)
		buf := bytes.NewBufferString(test.content)
		hash, size, err := utils.ReadSHA256(buf)
		c.Check(err, gc.IsNil)
		c.Check(hash, gc.Equals, test.sha256)
		c.Check(int(size), gc.Equals, len(test.content))

		tempFileName := filepath.Join(tempDir, fmt.Sprintf("sha256-%d", i))
		err = ioutil.WriteFile(tempFileName, []byte(test.content), 0644)
		c.Check(err, gc.IsNil)
		fileHash, fileSize, err := utils.ReadFileSHA256(tempFileName)
		c.Check(err, gc.IsNil)
		c.Check(fileHash, gc.Equals, hash)
		c.Check(fileSize, gc.Equals, size)
	}
}