diff --git a/frontend_tests/node_tests/search.js b/frontend_tests/node_tests/search.js
new file mode 100644
index 0000000000..c5ba1eae61
--- /dev/null
+++ b/frontend_tests/node_tests/search.js
@@ -0,0 +1,270 @@
+zrequire('search');
+
+const noop = () => {};
+const return_true = () => true;
+const return_false = () => false;
+
+set_global('$', global.make_zjquery());
+set_global('narrow_state', {});
+set_global('search_suggestion', {});
+set_global('ui_util', {
+    change_tab_to: noop,
+});
+set_global('narrow', {});
+set_global('Filter', {});
+
+global.patch_builtin('setTimeout', func => func());
+
+run_test('update_button_visibility', () => {
+    const search_query = $('#search_query');
+    const search_button = $('.search_button');
+
+    search_query.is = return_false;
+    search_query.val('');
+    narrow_state.active = return_false;
+    search_button.prop('disabled', false);
+    search.update_button_visibility();
+    assert(search_button.prop('disabled'));
+
+    search_query.is = return_true;
+    search_query.val('');
+    narrow_state.active = return_false;
+    search_button.prop('disabled', true);
+    search.update_button_visibility();
+    assert(!search_button.prop('disabled'));
+
+    search_query.is = return_false;
+    search_query.val('Test search term');
+    narrow_state.active = return_false;
+    search_button.prop('disabled', true);
+    search.update_button_visibility();
+    assert(!search_button.prop('disabled'));
+
+    search_query.is = return_false;
+    search_query.val('');
+    narrow_state.active = return_true;
+    search_button.prop('disabled', true);
+    search.update_button_visibility();
+    assert(!search_button.prop('disabled'));
+});
+
+run_test('initizalize', () => {
+    const search_query_box = $('#search_query');
+    const searchbox_form = $('#searchbox_form');
+    const search_button = $('.search_button');
+
+    searchbox_form.on = (event, func) => {
+        assert.equal(event, 'compositionend');
+        search.is_using_input_method = false;
+        func();
+        assert(search.is_using_input_method);
+    };
+
+    search_query_box.typeahead = (opts) => {
+        assert.equal(opts.fixed, true);
+        assert.equal(opts.items, 12);
+        assert.equal(opts.naturalSearch, true);
+        assert.equal(opts.helpOnEmptyStrings, true);
+        assert.equal(opts.matcher(), true);
+
+        {
+            const search_suggestions = {
+                lookup_table: {
+                    'stream:Verona': {
+                        description: 'Stream <strong>Ver</strong>ona',
+                        search_string: 'stream:Verona',
+                    },
+                    ver: {
+                        description: 'Search for ver',
+                        search_string: 'ver',
+                    },
+                },
+                strings: ['ver', 'stream:Verona'],
+            };
+
+            /* Test source */
+            search_suggestion.get_suggestions = () => search_suggestions;
+            const expected_source_value = search_suggestions.strings;
+            const source = opts.source('ver');
+            assert.equal(source, expected_source_value);
+
+            /* Test highlighter */
+            let expected_value = 'Search for ver';
+            assert.equal(opts.highlighter(source[0]), expected_value);
+
+            expected_value = 'Stream <strong>Ver</strong>ona';
+            assert.equal(opts.highlighter(source[1]), expected_value);
+
+            /* Test sorter */
+            assert.equal(opts.sorter(search_suggestions.strings), search_suggestions.strings);
+        }
+
+        {
+            let operators;
+            let is_blurred;
+            search_query_box.blur = () => {
+                is_blurred = true;
+            };
+            /* Test updater */
+            const _setup = (search_box_val) => {
+                is_blurred = false;
+                search_query_box.val(search_box_val);
+                Filter.parse = (search_string) => {
+                    assert.equal(search_string, search_box_val);
+                    return operators;
+                };
+                narrow.activate = (raw_operators, options) => {
+                    assert.deepEqual(raw_operators, operators);
+                    assert.deepEqual(options, {trigger: 'search'});
+                };
+            };
+
+            operators = [{
+                negated: false,
+                operator: 'search',
+                operand: 'ver',
+            }];
+            _setup('ver');
+            assert.equal(opts.updater('ver'), 'ver');
+            assert(is_blurred);
+
+            operators = [{
+                negated: false,
+                operator: 'stream',
+                operand: 'Verona',
+            }];
+            _setup('stream:Verona');
+            assert.equal(opts.updater('stream:Verona'), 'stream:Verona');
+            assert(is_blurred);
+
+            search.is_using_input_method = true;
+            _setup('stream:Verona');
+            assert.equal(opts.updater('stream:Verona'), 'stream:Verona');
+            assert(!is_blurred);
+        }
+    };
+
+    searchbox_form.keydown = (func) => {
+        const ev = {
+            which: 15,
+        };
+        search_query_box.is = return_false;
+        assert.equal(func(ev), undefined);
+
+        ev.which = 13;
+        assert.equal(func(ev), undefined);
+
+        ev.which = 13;
+        search_query_box.is = return_true;
+        assert.equal(func(ev), false);
+
+        return search_query_box;
+    };
+
+    search_query_box.keyup = (func) => {
+        const ev = {};
+        let operators;
+        let is_blurred;
+        narrow_state.active = return_false;
+        search_query_box.blur = () => {
+            is_blurred = true;
+        };
+
+        const _setup = (search_box_val) => {
+            is_blurred = false;
+            search_button.prop('disabled', false);
+            search_query_box.val(search_box_val);
+            Filter.parse = (search_string) => {
+                assert.equal(search_string, search_box_val);
+                return operators;
+            };
+            narrow.activate = (raw_operators, options) => {
+                assert.deepEqual(raw_operators, operators);
+                assert.deepEqual(options, {trigger: 'search'});
+            };
+        };
+
+
+        operators = [{
+            negated: false,
+            operator: 'search',
+            operand: '',
+        }];
+        _setup('');
+
+        ev.which = 15;
+        search_query_box.is = return_false;
+        func(ev);
+
+        assert(!is_blurred);
+        assert(!search_button.prop('disabled'));
+
+        ev.which = 13;
+        search_query_box.is = return_false;
+        func(ev);
+
+        assert(!is_blurred);
+        assert(!search_button.prop('disabled'));
+
+        ev.which = 13;
+        search_query_box.is = return_true;
+        func(ev);
+        assert(is_blurred);
+        assert(search_button.prop('disabled'));
+
+
+        _setup('ver');
+        search.is_using_input_method = true;
+        func(ev);
+        // No change on enter keyup event when using input tool
+        assert(!is_blurred);
+        assert(!search_button.prop('disabled'));
+
+
+        _setup('ver');
+        ev.which = 13;
+        search_query_box.is = return_true;
+        func(ev);
+        assert(is_blurred);
+        assert(!search_button.prop('disabled'));
+    };
+
+    search_query_box.on = (event, callback) => {
+        if (event === 'focus') {
+            search_button.prop('disabled', true);
+            callback();
+            assert(!search_button.prop('disabled'));
+        } else if (event === 'blur') {
+            search_query_box.val("test string");
+            narrow_state.search_string = () => 'ver';
+            callback();
+            assert.equal(search_query_box.val(), 'ver');
+        }
+    };
+
+    $('#search_exit').on = (event, callback) => {
+        assert.equal(event, 'click');
+        let is_deactivated = false;
+        let is_blurred = false;
+        narrow.deactivate = () => {
+            is_deactivated = true;
+        };
+        search_query_box.blur = () => {
+            is_blurred = true;
+        };
+        callback();
+        assert(is_blurred);
+        assert(is_deactivated);
+    };
+
+    search.initialize();
+});
+
+run_test('initiate_search', () => {
+    let is_searchbox_selected = false;
+    $('#search_query').select = () => {
+        is_searchbox_selected = true;
+    };
+    search.initiate_search();
+    assert(is_searchbox_selected);
+});
diff --git a/tools/test-js-with-node b/tools/test-js-with-node
index dfe92f6bee..3b6f7c467e 100755
--- a/tools/test-js-with-node
+++ b/tools/test-js-with-node
@@ -56,6 +56,7 @@ enforce_fully_covered = {
     'static/js/rtl.js',
     'static/js/schema.js',
     'static/js/scroll_util.js',
+    'static/js/search.js',
     'static/js/search_suggestion.js',
     # Removed because we're migrating code from uncovered other settings pages to here.
     # 'static/js/settings_ui.js',