text: "use strict";
  
  set_global("page_params", {
      search_pills_enabled: false,
  });
  zrequire("search");
  zrequire("message_view_header");
  
  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", true);
      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("initialize", () => {
      const search_query_box = $("#search_query");
      const searchbox_form = $("#searchbox_form");
      const search_button = $(".search_button");
  
      search_suggestion.max_num_of_search_results = 999;
      search_query_box.typeahead = (opts) => {
          assert.equal(opts.fixed, true);
          assert.equal(opts.items, 999);
          assert.equal(opts.naturalSearch, true);
          assert.equal(opts.helpOnEmptyStrings, true);
          assert.equal(opts.matcher(), true);
  
          {
              const search_suggestions = {
                  lookup_table: new Map([
                      [
                          "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.on("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);
  
              search_query_box.off("blur");
          }
      };
  
      search.initialize();
  
      search_button.prop("disabled", true);
      search_query_box.trigger("focus");
      assert(!search_button.prop("disabled"));
  
      search_query_box.val("test string");
      narrow_state.search_string = () => "ver";
      search_query_box.trigger("blur");
      assert.equal(search_query_box.val(), "test string");
  
      search.is_using_input_method = false;
      searchbox_form.trigger("compositionend");
      assert(search.is_using_input_method);
  
      const keydown = searchbox_form.get_on_handler("keydown");
      let default_prevented = false;
      let ev = {
          type: "keydown",
          which: 15,
          preventDefault() {
              default_prevented = true;
          },
      };
      search_query_box.is = return_false;
      assert.equal(keydown(ev), undefined);
      assert(!default_prevented);
  
      ev.which = 13;
      assert.equal(keydown(ev), undefined);
      assert(!default_prevented);
  
      ev.which = 13;
      search_query_box.is = return_true;
      assert.equal(keydown(ev), undefined);
      assert(default_prevented);
  
      ev = {
          type: "keyup",
      };
      let operators;
      let is_blurred;
      narrow_state.active = return_false;
      search_query_box.off("blur");
      search_query_box.on("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;
      searchbox_form.trigger(ev);
  
      assert(!is_blurred);
      assert(!search_button.prop("disabled"));
  
      ev.which = 13;
      search_query_box.is = return_false;
      searchbox_form.trigger(ev);
  
      assert(!is_blurred);
      assert(!search_button.prop("disabled"));
  
      ev.which = 13;
      search_query_box.is = return_true;
      searchbox_form.trigger(ev);
      assert(is_blurred);
  
      _setup("ver");
      search.is_using_input_method = true;
      searchbox_form.trigger(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;
      searchbox_form.trigger(ev);
      assert(is_blurred);
      assert(!search_button.prop("disabled"));
  });
  
  run_test("initiate_search", () => {
      // open typeahead and select text when navbar is open
      // this implicitly expects the code to used the chained
      // function calls, which is something to keep in mind if
      // this test ever fails unexpectedly.
      narrow_state.filter = () => ({is_search: return_true});
      let typeahead_forced_open = false;
      let is_searchbox_text_selected = false;
      $("#search_query").typeahead = (lookup) => {
          if (lookup === "lookup") {
              typeahead_forced_open = true;
          }
          return $("#search_query");
      };
      $("#search_query").on("select", () => {
          is_searchbox_text_selected = true;
      });
  
      search.initiate_search();
      assert(typeahead_forced_open);
      assert(is_searchbox_text_selected);
      assert.equal($("#search_query").val(), "ver");
  
      // test that we append space for user convenience
      narrow_state.filter = () => ({is_search: return_false});
      search.initiate_search();
      assert.equal($("#search_query").val(), "ver ");
  });
  