make sure assertEventsEqual() actually has events to test

source/dyaml/test/emitter.d

@@ -8,7 +8,7 @@ module dyaml.test.emitter;
 
 @safe unittest
 {
-    import std.array : Appender;
+    import std.array : Appender, array;
     import std.range : ElementType, isInputRange;
 
     import dyaml : CollectionStyle, LineBreak, Loader, Mark, ScalarStyle;
@@ -40,7 +40,7 @@ module dyaml.test.emitter;
     {
         //Must exist due to Anchor, Tags reference counts.
         auto loader = Loader.fromFile(dataFilename);
-        auto events = loader.parse();
+        auto events = loader.parse().array;
         auto emitStream = Appender!string();
         emitTestCommon(emitStream, events);
 
@@ -60,7 +60,7 @@ module dyaml.test.emitter;
     {
         //Must exist due to Anchor, Tags reference counts.
         auto loader = Loader.fromFile(canonicalFilename);
-        auto events = loader.parse();
+        auto events = loader.parse().array;
         foreach (canonical; [false, true])
         {
             auto emitStream = Appender!string();
@@ -88,7 +88,7 @@ module dyaml.test.emitter;
         {
             //must exist due to Anchor, Tags reference counts
             auto loader = Loader.fromFile(canonicalFilename);
-            auto events = loader.parse();
+            auto events = loader.parse().array;
             foreach (flowStyle; [CollectionStyle.block, CollectionStyle.flow])
             {
                 foreach (style; [ScalarStyle.literal, ScalarStyle.folded,