renamed the ids, removed the replace_all parameter and changed the name of the testcase as mentioned in the comments

notebook/static/notebook/js/searchandreplace.js

@@ -163,7 +163,7 @@ define([
 
       var allCellsButton = $('<button/>')
       .append($('<i/>').addClass('fa fa-arrows-v'))
-      .attr('id', 'allcells_id')
+      .attr('id', 'findreplace_allcells_btn')
       .attr('type', 'button')
       .addClass("btn btn-default btn-sm")
       .attr('data-toggle','button')
@@ -180,7 +180,7 @@ define([
      
     var search  = $("<input/>")
       .addClass('form-control input-sm')
-      .attr('id', 'input_id')
+      .attr('id', 'findreplace_find_inp')
       .attr('placeholder',i18n.msg._('Find'));
 
     var findFormGroup = $('<div/>').addClass('form-group');
@@ -196,7 +196,7 @@ define([
     )
 
     var replace = $("<input/>")
-      .attr('id', 'replace_id')
+      .attr('id', 'findreplace_replace_inp')
       .addClass('form-control input-sm')
       .attr('placeholder',i18n.msg._('Replace'));
     var replaceFormGroup = $('<div/>').addClass('form-group');
@@ -358,7 +358,7 @@ define([
       buttons:{
         'Replace All':{ class: "btn-primary",
             click: function(event){onsubmit(event); return true;},
-            id: "replaceall_id",
+            id: "findreplace_replaceall_btn",
         }
       },
       open: function(){

notebook/tests/selenium/test_find_and_replace.py

@@ -1,8 +1,7 @@
-import os
 import pytest
 
 
-def test_find_and_replace_apply_all(notebook):
+def test_find_and_replace(notebook):
     """ test find and replace on all the cells """
     cell_0, cell_1, cell_2, cell_3 = "hello", "hellohello", "abc", "ello"
 
@@ -16,7 +15,7 @@ def test_find_and_replace_apply_all(notebook):
     notebook.add_cell(index=3, content=cell_3);
 
     # replace the strings
-    notebook.find_and_replace(index=0, find_txt=find_str, replace_txt=replace_str, replace_all=True)
+    notebook.find_and_replace(index=0, find_txt=find_str, replace_txt=replace_str)
 
     # check content of the cells
     assert notebook.get_cell_contents(0) == cell_0.replace(find_str, replace_str)

notebook/tests/selenium/utils.py

@@ -100,15 +100,15 @@ class Notebook:
         self.to_command_mode()
         self.current_cell = cell
 
-    def find_and_replace(self, index=0, find_txt='', replace_txt='', replace_all=False):
+    def find_and_replace(self, index=0, find_txt='', replace_txt=''):
         self.focus_cell(index)
         self.to_command_mode()
         self.body.send_keys('f')
         wait_for_selector(self.browser, "#find-and-replace", single=True)
-        self.browser.find_element_by_id("allcells_id").click()
-        self.browser.find_element_by_id("input_id").send_keys(find_txt)
-        self.browser.find_element_by_id("replace_id").send_keys(replace_txt)
-        self.browser.find_element_by_id("replaceall_id").click()
+        self.browser.find_element_by_id("findreplace_allcells_btn").click()
+        self.browser.find_element_by_id("findreplace_find_inp").send_keys(find_txt)
+        self.browser.find_element_by_id("findreplace_replace_inp").send_keys(replace_txt)
+        self.browser.find_element_by_id("findreplace_replaceall_btn").click()
 
     def convert_cell_type(self, index=0, cell_type="code"):
         # TODO add check to see if it is already present