mediaLibrary add DIR_DOWNLOAD test case

Signed-off-by: Ncaochuan <caochuan@huawei.com>

multimedia/medialibrary/mediaLibrary_base/entry/src/main/ets/test/mediaLibraryTestCallback.test.ets

@@ -528,7 +528,7 @@ export default function mediaLibraryTestCallback(abilityContext) {
         /**
          * @tc.number    : SUB__MEDIA_MIDIALIBRARY_CALLBACK_GETPUBLICDIRECTORY_004
          * @tc.name      : getPublicDirectory
-         * @tc.desc      : getPublicDirectory DIR_IMAGE
+         * @tc.desc      : getPublicDirectory DIR_AUDIO
          * @tc.size      : MEDIUM
          * @tc.type      : Function
          * @tc.level     : Level 0
@@ -549,7 +549,7 @@ export default function mediaLibraryTestCallback(abilityContext) {
          * @tc.level     : Level 0
          */
         it('SUB__MEDIA_MIDIALIBRARY_CALLBACK_GETPUBLICDIRECTORY_005', 0, async function (done) {
-            let testNum = 'SUB__MEDIA_MIDIALIBRARY_CALLBACK_GETPUBLICDIRECTORY_004';
+            let testNum = 'SUB__MEDIA_MIDIALIBRARY_CALLBACK_GETPUBLICDIRECTORY_005';
             let dir = mediaLibrary.DirectoryType.DIR_DOCUMENTS;
             let val = 'Documents/';
             await checkGetPublicDirectory(done, testNum, dir, val)
@@ -576,6 +576,21 @@ export default function mediaLibraryTestCallback(abilityContext) {
             }
         });
 
+        /**
+         * @tc.number    : SUB__MEDIA_MIDIALIBRARY_CALLBACK_GETPUBLICDIRECTORY_007
+         * @tc.name      : getPublicDirectory
+         * @tc.desc      : getPublicDirectory DIR_DOWNLOAD
+         * @tc.size      : MEDIUM
+         * @tc.type      : Function
+         * @tc.level     : Level 0
+         */
+        it('SUB__MEDIA_MIDIALIBRARY_CALLBACK_GETPUBLICDIRECTORY_007', 0, async function (done) {
+            let testNum = 'SUB__MEDIA_MIDIALIBRARY_CALLBACK_GETPUBLICDIRECTORY_007';
+            let dir = mediaLibrary.DirectoryType.DIR_DOWNLOAD;
+            let val = 'Download/';
+            await checkGetPublicDirectory(done, testNum, dir, val)
+        });
+
         /**
          * @tc.number    : SUB__MEDIA_MIDIALIBRARY_CALLBACK_CREATEASSET_001
          * @tc.name      : createAsset

multimedia/medialibrary/mediaLibrary_base/entry/src/main/ets/test/mediaLibraryTestPromise.test.ets

@@ -507,7 +507,7 @@ export default function mediaLibraryTestPromiseTest(abilityContext) {
         /**
          * @tc.number    : SUB__MEDIA_MIDIALIBRARY_PROMISE_GETPUBLICDIRECTORY_004
          * @tc.name      : getPublicDirectory
-         * @tc.desc      : getPublicDirectory DIR_IMAGE
+         * @tc.desc      : getPublicDirectory DIR_AUDIO
          * @tc.size      : MEDIUM
          * @tc.type      : Function
          * @tc.level     : Level 0
@@ -522,13 +522,13 @@ export default function mediaLibraryTestPromiseTest(abilityContext) {
         /**
          * @tc.number    : SUB__MEDIA_MIDIALIBRARY_PROMISE_GETPUBLICDIRECTORY_005
          * @tc.name      : getPublicDirectory
-         * @tc.desc      : getPublicDirectory DIR_IMAGE
+         * @tc.desc      : getPublicDirectory DIR_DOCUMENTS
          * @tc.size      : MEDIUM
          * @tc.type      : Function
          * @tc.level     : Level 0
          */
         it('SUB__MEDIA_MIDIALIBRARY_PROMISE_GETPUBLICDIRECTORY_005', 0, async function (done) {
-            let testNum = 'SUB__MEDIA_MIDIALIBRARY_PROMISE_GETPUBLICDIRECTORY_004';
+            let testNum = 'SUB__MEDIA_MIDIALIBRARY_PROMISE_GETPUBLICDIRECTORY_005';
             let dir = mediaLibrary.DirectoryType.DIR_DOCUMENTS;
             let val = 'Documents/';
             await checkGetPublicDirectory(done, testNum, dir, val)
@@ -555,6 +555,22 @@ export default function mediaLibraryTestPromiseTest(abilityContext) {
             }
         });
 
+        /**
+         * @tc.number    : SUB__MEDIA_MIDIALIBRARY_PROMISE_GETPUBLICDIRECTORY_007
+         * @tc.name      : getPublicDirectory
+         * @tc.desc      : getPublicDirectory DIR_DOWNLOAD
+         * @tc.size      : MEDIUM
+         * @tc.type      : Function
+         * @tc.level     : Level 0
+         */
+        it('SUB__MEDIA_MIDIALIBRARY_PROMISE_GETPUBLICDIRECTORY_007', 0, async function (done) {
+            let testNum = 'SUB__MEDIA_MIDIALIBRARY_PROMISE_GETPUBLICDIRECTORY_007';
+            let dir = mediaLibrary.DirectoryType.DIR_DOWNLOAD;
+            let val = 'Download/';
+            await checkGetPublicDirectory(done, testNum, dir, val)
+        });
+
+
         /**
          * @tc.number    : SUB__MEDIA_MIDIALIBRARY_PROMISE_CREATEASSET_001
          * @tc.name      : createAsset