added StFormat, StItem, and basic ChecksumV1 examples

1 files changed, 56 insertions, 0 deletions

diff --git a/type_test.go b/type_test.go
new file mode 100644
index 0000000..bcd66e6
--- /dev/null
+++ b/type_test.go
@@ -0,0 +1,56 @@
+package stfe
+
+import (
+	"fmt"
+
+	"crypto/sha256"
+
+	"github.com/google/certificate-transparency-go/tls"
+)
+
+func ExampleNewChecksumV1() {
+	name := "foobar-1.2.3"
+	hasher := sha256.New()
+	hasher.Write([]byte(name))
+	checksum := hasher.Sum(nil) // hash of package name
+
+	item, err := NewChecksumV1(name, checksum)
+	if err != nil {
+		fmt.Printf("failed creating checksum item: %v", err)
+		return
+	}
+	fmt.Printf("%s\n", item)
+	// Output: checksum_v1 foobar-1.2.3 UOeWe84malBvj2FLtQlr66WA0gUEa5GPR9I7LsYm114=
+}
+
+func ExampleMarshalChecksumV1() {
+	item, err := NewChecksumV1("foobar-1.2.3", make([]byte, 32))
+	if err != nil {
+		fmt.Printf("failed creating checksum item: %v", err)
+		return
+	}
+
+	b, err := tls.Marshal(item)
+	if err != nil {
+		fmt.Printf("tls.Marshal() failed: %v", err)
+		return
+	}
+	fmt.Printf("%v\n", b)
+	// Output: [0 5 12 102 111 111 98 97 114 45 49 46 50 46 51 32 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0]
+}
+
+func ExampleUnmarshalChecksumV1() {
+	b := []byte{0, 5, 12, 102, 111, 111, 98, 97, 114, 45, 49, 46, 50, 46, 51, 32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
+
+	var item StItem
+	extra, err := tls.Unmarshal(b, &item)
+	if err != nil {
+		fmt.Printf("tls.Unmarshal() failed: %v (%v)", err, extra)
+		return
+	} else if len(extra) > 0 {
+		fmt.Printf("tls.Unmarshal() found extra data: %v", extra)
+		return
+	}
+	fmt.Printf("%v\n", item)
+	// Output: checksum_v1 foobar-1.2.3 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
+}