diff --git a/vendor/github.com/outbrain/golib/tests/spec.go b/vendor/github.com/outbrain/golib/tests/spec.go
new file mode 100644
index 0000000..27b15b6
--- /dev/null
+++ b/vendor/github.com/outbrain/golib/tests/spec.go
@@ -0,0 +1,76 @@
+package tests
+
+import (
+	"testing"
+)
+
+// Spec is an access point to test Expections
+type Spec struct {
+	t *testing.T
+}
+
+// S generates a spec. You will want to use it once in a test file, once in a test or once per each check
+func S(t *testing.T) *Spec {
+	return &Spec{t: t}
+}
+
+// ExpectNil expects given value to be nil, or errors
+func (spec *Spec) ExpectNil(actual interface{}) {
+	if actual == nil {
+		return
+	}
+	spec.t.Errorf("Expected %+v to be nil", actual)
+}
+
+// ExpectNotNil expects given value to be not nil, or errors
+func (spec *Spec) ExpectNotNil(actual interface{}) {
+	if actual != nil {
+		return
+	}
+	spec.t.Errorf("Expected %+v to be not nil", actual)
+}
+
+// ExpectEquals expects given values to be equal (comparison via `==`), or errors
+func (spec *Spec) ExpectEquals(actual, value interface{}) {
+	if actual == value {
+		return
+	}
+	spec.t.Errorf("Expected %+v, got %+v", value, actual)
+}
+
+// ExpectNotEquals expects given values to be nonequal (comparison via `==`), or errors
+func (spec *Spec) ExpectNotEquals(actual, value interface{}) {
+	if !(actual == value) {
+		return
+	}
+	spec.t.Errorf("Expected not %+v", value)
+}
+
+// ExpectEqualsAny expects given actual to equal (comparison via `==`) at least one of given values, or errors
+func (spec *Spec) ExpectEqualsAny(actual interface{}, values ...interface{}) {
+	for _, value := range values {
+		if actual == value {
+			return
+		}
+	}
+	spec.t.Errorf("Expected %+v to equal any of given values", actual)
+}
+
+// ExpectNotEqualsAny expects given actual to be nonequal (comparison via `==`)tp any of given values, or errors
+func (spec *Spec) ExpectNotEqualsAny(actual interface{}, values ...interface{}) {
+	for _, value := range values {
+		if actual == value {
+			spec.t.Errorf("Expected not %+v", value)
+		}
+	}
+}
+
+// ExpectFalse expects given values to be false, or errors
+func (spec *Spec) ExpectFalse(actual interface{}) {
+	spec.ExpectEquals(actual, false)
+}
+
+// ExpectTrue expects given values to be true, or errors
+func (spec *Spec) ExpectTrue(actual interface{}) {
+	spec.ExpectEquals(actual, true)
+}