Basic metadata retrieval test

metadata/metadata_test.go

@@ -0,0 +1,28 @@
+package metadata
+
+import (
+	"testing"
+
+	"golang.org/x/net/context"
+)
+
+func TestMetadataContext(t *testing.T) {
+	md := Metadata{
+		"foo": "bar",
+	}
+
+	ctx := NewContext(context.TODO(), md)
+
+	emd, ok := FromContext(ctx)
+	if !ok {
+		t.Errorf("Unexpected error retrieving metadata, got %t", ok)
+	}
+
+	if emd["foo"] != md["foo"] {
+		t.Errorf("Expected key: %s val: %s, got key: %s val: %s", "foo", md["foo"], "foo", emd["foo"])
+	}
+
+	if i := len(emd); i != 1 {
+		t.Errorf("Expected metadata length 1 got %d", i)
+	}
+}