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korvike/functions/func_test.go
Knut Ahlers 047d4406ad
Add support for b64decode
Signed-off-by: Knut Ahlers <knut@ahlers.me>
2021-08-30 15:55:52 +02:00

121 lines
3 KiB
Go

package functions
import (
"bytes"
"fmt"
"io/ioutil"
"math/rand"
"os"
"strings"
"testing"
"text/template"
"time"
)
func renderHelper(tpl string, ctx map[string]interface{}) string {
t, err := template.New("mytemplate").Funcs(GetFunctionMap()).Parse(tpl)
if err != nil {
panic(err)
}
SetSubTemplateVariables(ctx)
buf := bytes.NewBufferString("")
if err := t.Execute(buf, ctx); err != nil {
panic(err)
}
return buf.String()
}
func randomString() string {
const chars = "abcdefghijklmnopqrstuvwxyz0123456789"
r := rand.New(rand.NewSource(time.Now().UnixNano()))
result := make([]byte, 32)
for i := range result {
result[i] = chars[r.Intn(len(chars))]
}
return string(result)
}
func Test_GetFunctionMap(t *testing.T) {
f := GetFunctionMap()
if f == nil || len(f) < 1 {
t.Fatal("No functions were registered.")
}
}
func Test_base64(t *testing.T) {
var (
b64 = "aGVsbG8="
plain = "hello"
)
if r := renderHelper(fmt.Sprintf(`{{b64decode "%s"}}`, b64), nil); r != plain {
t.Errorf("[b64decode] did not yield expected string: %q (expected %q)", r, plain)
}
if r := renderHelper(fmt.Sprintf(`{{b64encode "%s"}}`, plain), nil); r != b64 {
t.Errorf("[b64encode] did not yield expected string: %q (expected %q)", r, b64)
}
}
func Test_env(t *testing.T) {
result := randomString()
os.Setenv("KORVIKE_TESTING", result)
if r := renderHelper(`{{env "KORVIKE_TESTING"}}`, nil); r != result {
t.Errorf("[env] did not receive expected string: %q (expected %q)", r, result)
}
}
func Test_file(t *testing.T) {
f, err := ioutil.TempFile("", "")
if err != nil {
panic(err)
}
p := f.Name()
result := randomString()
fmt.Fprint(f, result)
f.Close()
defer os.Remove(p)
if r := renderHelper(fmt.Sprintf("{{file %q}}", p), nil); r != result {
t.Errorf("[file] did not receive expected string: %q (expected %q)", r, result)
}
}
func Test_hash(t *testing.T) {
input := "I'm a string to hash"
for algo, exp := range map[string]string{
"md5": "d5adddaa0fd9f924b85e7874dc85f814",
"sha1": "bd41599338445f401b8d3751fbe718e8a0b52004",
"sha256": "ba32f090baf28862816a10da05509b31393704184ae49c68f9eb2933afa9e4d1",
"sha512": "3288edcff4f28526fe8ecfb6d5182f2a446ab0572550c9591d1f5cacd377397af25c0274c9c2428c35422d215ccdc304d0353c093c76e750f9d7c4d54e64eed8",
} {
if res := renderHelper(fmt.Sprintf("{{ hash %q %q }}", algo, input), nil); res != exp {
t.Errorf("Hash algo %q yield unexpected result: exp=%q res=%q", algo, exp, res)
}
}
}
func Test_now(t *testing.T) {
if _, err := time.Parse(time.RFC3339Nano, renderHelper(fmt.Sprintf("{{now %q}}", time.RFC3339Nano), nil)); err != nil {
t.Errorf("[now] did not produce expected time format")
}
}
func Test_tplexec(t *testing.T) {
result := randomString()
os.Setenv("KORVIKE_TESTING", result)
if res := renderHelper(`{{ tplexec "{{ .var }}:{{ env \"KORVIKE_TESTING\" }}" }}`, map[string]interface{}{"var": "test"}); res != strings.Join([]string{
"test",
result,
}, ":") {
t.Errorf("[template] did not produce expected result %q != test", res)
}
}