Add store test.

store_test.go

@@ -0,0 +1,59 @@
+package captcha
+
+import (
+	"bytes"
+	"github.com/dchest/uniuri"
+	"testing"
+)
+
+func TestSaveAndGetDigits(t *testing.T) {
+	s := newStore(StdCollectNum, StdExpiration)
+	id := "captcha id"
+	d := RandomDigits(10)
+	s.saveCaptcha(id, d)
+	d2 := s.getDigits(id)
+	if d2 == nil || !bytes.Equal(d, d2) {
+		t.Errorf("saved %v, getDigits returned got %v", d, d2)
+	}
+}
+
+func TestGetDigitsClear(t *testing.T) {
+	s := newStore(StdCollectNum, StdExpiration)
+	id := "captcha id"
+	d := RandomDigits(10)
+	s.saveCaptcha(id, d)
+	d2 := s.getDigitsClear(id)
+	if d2 == nil || !bytes.Equal(d, d2) {
+		t.Errorf("saved %v, getDigitsClear returned got %v", d, d2)
+	}
+	d2 = s.getDigits(id)
+	if d2 != nil {
+		t.Errorf("getDigitClear didn't clear (%q=%v)", id, d2)
+	}
+}
+
+func TestCollect(t *testing.T) {
+	//TODO(dchest): can't test automatic collection when saving, because
+	//it's currently launched in a different goroutine.
+	s := newStore(10, -1)
+	// create 10 ids
+	ids := make([]string, 10)
+	d := RandomDigits(10)
+	for i := range ids {
+		ids[i] = uniuri.New()
+		s.saveCaptcha(ids[i], d)
+	}
+	s.collect()
+	// Must be already collected
+	nc := 0
+	for i := range ids {
+		d2 := s.getDigits(ids[i])
+		if d2 != nil {
+			t.Errorf("%d: not collected", i)
+			nc++
+		}
+	}
+	if nc > 0 {
+		t.Errorf("= not collected %d out of %d captchas", nc, len(ids))
+	}
+}