test: add primitives tests (#3987)

test coverage

Signed-off-by: Sandor Szücs <sandor.szuecs@zalando.de>

Author: szuecs

predicates/primitive/primitives_test.go

@@ -0,0 +1,36 @@
+package primitive
+
+import (
+	"net/http"
+	"testing"
+)
+
+func TestFalse(t *testing.T) {
+	f := NewFalse()
+	req, _ := http.NewRequest("GET", "http://false.test", nil)
+	p, err := f.Create(nil)
+	if err != nil {
+		t.Fatalf("Failed to create: %v", err)
+	}
+	if p.Match(req) {
+		t.Fatal("False() should never match")
+	}
+	if f.Name() == "" {
+		t.Fatal("predicate should have a name")
+	}
+}
+
+func TestTrue(t *testing.T) {
+	tr := NewTrue()
+	req, _ := http.NewRequest("GET", "http://true.test", nil)
+	p, err := tr.Create(nil)
+	if err != nil {
+		t.Fatalf("Failed to create: %v", err)
+	}
+	if !p.Match(req) {
+		t.Fatal("True() should always match")
+	}
+	if tr.Name() == "" {
+		t.Fatal("predicate should have a name")
+	}
+}