81 lines
1.6 KiB
Go
81 lines
1.6 KiB
Go
package hashing_test
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import (
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"bytes"
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"crypto/md5"
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"crypto/sha1"
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"encoding/hex"
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"hash"
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"github.com/fd0/khepri/hashing"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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)
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var _ = Describe("Hashing", func() {
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var static_tests = []struct {
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hash func() hash.Hash
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text string
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digest string
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}{
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{md5.New, "foobar\n", "14758f1afd44c09b7992073ccf00b43d"},
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// test data from http://www.nsrl.nist.gov/testdata/
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{sha1.New, "abc", "a9993e364706816aba3e25717850c26c9cd0d89d"},
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{sha1.New, "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", "84983e441c3bd26ebaae4aa1f95129e5e54670f1"},
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}
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Describe("Reader", func() {
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Context("Static Strings", func() {
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It("Should compute digest", func() {
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for _, t := range static_tests {
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r := hashing.NewReader(bytes.NewBuffer([]byte(t.text)), t.hash)
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n, err := r.Read(make([]byte, len(t.text)+1))
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if n != len(t.text) {
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Fail("not enough bytes read")
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}
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if err != nil {
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panic(err)
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}
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digest := r.Hash()
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h := hex.EncodeToString(digest)
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Expect(h).Should(Equal(t.digest))
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}
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})
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})
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Context("Random Strings", func() {
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})
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})
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Describe("Writer", func() {
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Context("Static Strings", func() {
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It("Should compute digest", func() {
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for _, t := range static_tests {
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var buf bytes.Buffer
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w := hashing.NewWriter(&buf, t.hash)
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n, err := w.Write([]byte(t.text))
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if n != len(t.text) {
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Fail("not enough bytes written")
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}
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if err != nil {
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panic(err)
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}
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digest := w.Hash()
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h := hex.EncodeToString(digest)
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Expect(h).Should(Equal(t.digest))
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}
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})
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})
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})
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})
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