diff --git a/components/omnibox/browser/brave_bookmark_provider_unittest.cc b/components/omnibox/browser/brave_bookmark_provider_unittest.cc
index d0d99636cce9..4faa4c814da5 100644
--- a/components/omnibox/browser/brave_bookmark_provider_unittest.cc
+++ b/components/omnibox/browser/brave_bookmark_provider_unittest.cc
@@ -67,3 +67,58 @@ TEST_F(BraveBookmarkProviderTest, SuggestionsEnabledHasResults) {
   provider_->Start(CreateAutocompleteInput("Hello"), true);
   EXPECT_FALSE(provider_->matches().empty());
 }
+
+TEST_F(BraveBookmarkProviderTest, TitleContainsQueryCanBeDefaultMatch) {
+  prefs()->SetBoolean(omnibox::kBookmarkSuggestionsEnabled, true);
+  provider_->Start(CreateAutocompleteInput("Hello"), true);
+  EXPECT_FALSE(provider_->matches().empty());
+  EXPECT_TRUE(provider_->matches()[0].allowed_to_be_default_match);
+}
+
+TEST_F(BraveBookmarkProviderTest, URLContainsQueryCanBeDefaultMatch) {
+  prefs()->SetBoolean(omnibox::kBookmarkSuggestionsEnabled, true);
+  provider_->Start(CreateAutocompleteInput("example"), true);
+  EXPECT_FALSE(provider_->matches().empty());
+  EXPECT_TRUE(provider_->matches()[0].allowed_to_be_default_match);
+}
+
+TEST_F(BraveBookmarkProviderTest, ContainsIsCaseInsensitive) {
+  prefs()->SetBoolean(omnibox::kBookmarkSuggestionsEnabled, true);
+  provider_->Start(CreateAutocompleteInput("EXAMPLE"), true);
+  EXPECT_FALSE(provider_->matches().empty());
+  EXPECT_TRUE(provider_->matches()[0].allowed_to_be_default_match);
+
+  provider_->Start(CreateAutocompleteInput("HELLO"), true);
+  EXPECT_FALSE(provider_->matches().empty());
+  EXPECT_TRUE(provider_->matches()[0].allowed_to_be_default_match);
+}
+
+TEST_F(BraveBookmarkProviderTest, QueryIsNotExactCannotBeDefaultMatch) {
+  prefs()->SetBoolean(omnibox::kBookmarkSuggestionsEnabled, true);
+  provider_->Start(CreateAutocompleteInput("Hello example"), true);
+  EXPECT_FALSE(provider_->matches().empty());
+  EXPECT_FALSE(provider_->matches()[0].allowed_to_be_default_match);
+}
+
+TEST_F(BraveBookmarkProviderTest, DontBumpContainsQueryIfKeywordIsUsed) {
+  prefs()->SetBoolean(omnibox::kBookmarkSuggestionsEnabled, true);
+  auto input = CreateAutocompleteInput("Hello");
+  input.set_keyword_mode_entry_method(
+      metrics::OmniboxEventProto::KeywordModeEntryMethod::
+          OmniboxEventProto_KeywordModeEntryMethod_KEYBOARD_SHORTCUT);
+  input.set_prefer_keyword(true);
+  input.set_allow_exact_keyword_match(true);
+  provider_->Start(input, true);
+
+  EXPECT_FALSE(provider_->matches().empty());
+  EXPECT_FALSE(provider_->matches()[0].allowed_to_be_default_match);
+}
+
+TEST_F(BraveBookmarkProviderTest, ContainsQueryBumpsRelevance) {
+  prefs()->SetBoolean(omnibox::kBookmarkSuggestionsEnabled, true);
+  provider_->Start(CreateAutocompleteInput("Hello"), true);
+  EXPECT_FALSE(provider_->matches().empty());
+  EXPECT_TRUE(provider_->matches()[0].allowed_to_be_default_match);
+  // Note: 1199 is the max relevance score for a bookmark upstream.
+  EXPECT_GT(provider_->matches()[0].relevance, 1199);
+}