[PATCH 6/7] windowscodecs/tests: Add an item enumeration test for the App1 reader.

[Nikolay Sivov]

From: Nikolay Sivov

Signed-off-by: Nikolay Sivov 
---
 dlls/windowscodecs/tests/metadata.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/dlls/windowscodecs/tests/metadata.c b/dlls/windowscodecs/tests/metadata.c
index 7904547114b..253a525c5c9 100644
--- a/dlls/windowscodecs/tests/metadata.c
+++ b/dlls/windowscodecs/tests/metadata.c
@@ -4047,9 +4047,11 @@ app1_data =
 static void test_metadata_App1(void)
 {
     IWICMetadataReader *reader, *ifd_reader, *exif_reader, *gps_reader;
+    IWICEnumMetadataItem *enumerator;
     IStream *app1_stream, *stream2;
     IWICMetadataWriter *writer;
     PROPVARIANT id, value;
+    ULONG fetched;
     GUID format;
     HRESULT hr;
     UINT count;
@@ -4088,6 +4090,29 @@ static void test_metadata_App1(void)
     ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
     ok(count == 1, "Unexpected count %u.\n", count);

+    /* Enumerator returns top level item. */
+    hr = IWICMetadataReader_GetEnumerator(reader, &enumerator);
+    ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
+
+    PropVariantInit(&id);
+    PropVariantInit(&value);
+    hr = IWICEnumMetadataItem_Next(enumerator, 1, NULL, &id, &value, &fetched);
+    ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
+    ok(fetched == 1, "Unexpected count %lu.\n", fetched);
+    ok(id.vt == VT_UI2, "Unexpected id type: %u.\n", id.vt);
+    ok(id.uiVal == 0, "Unexpected id %u.\n", id.uiVal);
+    ok(value.vt == VT_UNKNOWN, "Unexpected value type: %u.\n", value.vt);
+    ok(!!value.punkVal, "Unexpected value.\n");
+    PropVariantClear(&value);
+
+    PropVariantInit(&id);
+    PropVariantInit(&value);
+    hr = IWICEnumMetadataItem_Next(enumerator, 1, NULL, &id, &value, &fetched);
+    ok(hr == S_FALSE, "Unexpected hr %#lx.\n", hr);
+    ok(!fetched, "Unexpected count %lu.\n", fetched);
+
+    IWICEnumMetadataItem_Release(enumerator);
+
     PropVariantInit(&id);
     PropVariantInit(&value);
     hr = IWICMetadataReader_GetValueByIndex(reader, 0, NULL, &id, &value);