Empty search text is added in recent searches problem fix.

feature/search/src/main/kotlin/com/google/samples/apps/nowinandroid/feature/search/SearchViewModel.kt

@@ -103,10 +103,12 @@ class SearchViewModel @Inject constructor(
      * search query in the search text field, defining this method.
      */
     fun onSearchTriggered(query: String) {
-        viewModelScope.launch {
-            recentSearchRepository.insertOrReplaceRecentSearch(searchQuery = query)
+        if (query.isNotBlank()) {
+            viewModelScope.launch {
+                recentSearchRepository.insertOrReplaceRecentSearch(searchQuery = query)
+            }
+            analyticsHelper.logEventSearchTriggered(query = query)
         }
-        analyticsHelper.logEventSearchTriggered(query = query)
     }
 
     fun clearRecentSearches() {

feature/search/src/test/kotlin/com/google/samples/apps/nowinandroid/feature/search/SearchViewModelTest.kt

@@ -33,6 +33,7 @@ import com.google.samples.apps.nowinandroid.feature.search.SearchResultUiState.E
 import com.google.samples.apps.nowinandroid.feature.search.SearchResultUiState.Loading
 import com.google.samples.apps.nowinandroid.feature.search.SearchResultUiState.SearchNotReady
 import kotlinx.coroutines.flow.collect
+import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.test.UnconfinedTestDispatcher
 import kotlinx.coroutines.test.runTest
@@ -128,4 +129,15 @@ class SearchViewModelTest {
 
         collectJob.cancel()
     }
+
+    @Test
+    fun emptySearchText_NotAddToRecentSearches() = runTest {
+        viewModel.onSearchTriggered("")
+
+        val recentSearchQueriesStream = getRecentQueryUseCase()
+        val recentSearchQueries = recentSearchQueriesStream.first()
+        val recentSearchQuery = recentSearchQueries.firstOrNull()
+
+        assertEquals(null, recentSearchQuery)
+    }
 }