Add e2e tests

vendor/github.com/imdario/mergo/issue38_test.go

@@ -0,0 +1,59 @@
+package mergo
+
+import (
+	"testing"
+	"time"
+)
+
+type structWithoutTimePointer struct {
+	Created time.Time
+}
+
+func TestIssue38Merge(t *testing.T) {
+	dst := structWithoutTimePointer{
+		time.Now(),
+	}
+
+	expected := time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC)
+	src := structWithoutTimePointer{
+		expected,
+	}
+	if err := Merge(&dst, src); err != nil {
+		t.Errorf("Error while merging %s", err)
+	}
+	if dst.Created == src.Created {
+		t.Fatalf("Created merged unexpectedly: dst.Created(%v) == src.Created(%v)", dst.Created, src.Created)
+	}
+}
+
+func TestIssue38MergeEmptyStruct(t *testing.T) {
+	dst := structWithoutTimePointer{}
+
+	expected := time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC)
+	src := structWithoutTimePointer{
+		expected,
+	}
+	if err := Merge(&dst, src); err != nil {
+		t.Errorf("Error while merging %s", err)
+	}
+	if dst.Created == src.Created {
+		t.Fatalf("Created merged unexpectedly: dst.Created(%v) == src.Created(%v)", dst.Created, src.Created)
+	}
+}
+
+func TestIssue38MergeWithOverwrite(t *testing.T) {
+	dst := structWithoutTimePointer{
+		time.Now(),
+	}
+
+	expected := time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC)
+	src := structWithoutTimePointer{
+		expected,
+	}
+	if err := MergeWithOverwrite(&dst, src); err != nil {
+		t.Errorf("Error while merging %s", err)
+	}
+	if dst.Created != src.Created {
+		t.Fatalf("Created not merged in properly: dst.Created(%v) != src.Created(%v)", dst.Created, src.Created)
+	}
+}