diff --git a/tests/browser/test/extensive_test.js b/tests/browser/test/extensive_test.js
new file mode 100644
index 000000000..edfd5d3b9
--- /dev/null
+++ b/tests/browser/test/extensive_test.js
@@ -0,0 +1,203 @@
+/**
+ * @license
+ * Copyright 2023 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/**
+ * @fileoverview Node.js script to run Automated tests in Chrome, via webdriver.
+ */
+
+const chai = require('chai');
+const {
+  testSetup,
+  testFileLocations,
+  getBlockElementById,
+} = require('./test_setup');
+const {Key} = require('webdriverio');
+
+let browser;
+suite('This tests loading Large Configuration and Deletion', function (done) {
+  // Setting timeout to unlimited as the webdriver takes a longer time to run than most mocha test
+  this.timeout(0);
+
+  // Setup Selenium for all of the tests
+  suiteSetup(async function () {
+    browser = await testSetup(testFileLocations.playground);
+  });
+
+  test('This test loading from JSON results in the correct number of blocks', async function () {
+    const blockNum = await testingJSONLoad();
+    chai.assert.equal(blockNum, 13);
+  });
+
+  test('This test deleting block results in the correct number of blocks', async function () {
+    const fourthRepeatDo = await getBlockElementById(
+      browser,
+      'E8bF[-r:B~cabGLP#QYd'
+    );
+    await fourthRepeatDo.click({x: -100, y: -40});
+    await browser.keys([Key.Delete]);
+    await browser.pause(100);
+    const blockNum = await browser.execute(() => {
+      return Blockly.getMainWorkspace().getAllBlocks(false).length;
+    });
+    chai.assert.equal(blockNum, 10);
+  });
+
+  test('This test undoing delete block results in the correct number of blocks', async function () {
+    await browser.keys([Key.Ctrl, 'z']);
+    await browser.pause(100);
+    const blockNum = await browser.execute(() => {
+      return Blockly.getMainWorkspace().getAllBlocks(false).length;
+    });
+    chai.assert.equal(blockNum, 13);
+  });
+
+  // Teardown entire suite after test are done running
+  suiteTeardown(async function () {
+    await browser.deleteSession();
+  });
+});
+
+async function testingJSONLoad() {
+  return await browser.execute(() => {
+    const myWorkspace = Blockly.getMainWorkspace();
+    const state = {
+      'blocks': {
+        'languageVersion': 0,
+        'blocks': [
+          {
+            'type': 'controls_if',
+            'id': 'O]NpXoWXyz9okeD.PxV0',
+            'x': 112,
+            'y': 38,
+            'extraState': {
+              'elseIfCount': 1,
+              'hasElse': true,
+            },
+            'inputs': {
+              'DO0': {
+                'block': {
+                  'type': 'controls_repeat_ext',
+                  'id': ',8#9eTr9hCrD3nR|uW1L',
+                  'inputs': {
+                    'TIMES': {
+                      'shadow': {
+                        'type': 'math_number',
+                        'id': '(6!seVzJ[5W=!M_s@s=I',
+                        'fields': {
+                          'NUM': 4,
+                        },
+                      },
+                    },
+                  },
+                },
+              },
+              'DO1': {
+                'block': {
+                  'type': 'controls_repeat_ext',
+                  'id': ']X9#sM4FJiVrRP;y0m6H',
+                  'inputs': {
+                    'TIMES': {
+                      'shadow': {
+                        'type': 'math_number',
+                        'id': '%k#p|;f+Y*#.8DX].a6Y',
+                        'fields': {
+                          'NUM': -10,
+                        },
+                      },
+                    },
+                  },
+                },
+              },
+              'ELSE': {
+                'block': {
+                  'type': 'controls_repeat_ext',
+                  'id': '`ZOj01@KGMQ?+MMcLKZ:',
+                  'inputs': {
+                    'TIMES': {
+                      'shadow': {
+                        'type': 'math_number',
+                        'id': 'IIK8IHzVCoUpTfx[j=^9',
+                        'fields': {
+                          'NUM': 10,
+                        },
+                      },
+                      'block': {
+                        'type': 'logic_ternary',
+                        'id': '!$UboN.F)peh:!o]D48-',
+                        'inputs': {
+                          'IF': {
+                            'block': {
+                              'type': 'logic_boolean',
+                              'id': '|?-zstzEVy,Ec%%dJZM{',
+                              'fields': {
+                                'BOOL': 'FALSE',
+                              },
+                            },
+                          },
+                        },
+                      },
+                    },
+                  },
+                },
+              },
+            },
+            'next': {
+              'block': {
+                'type': 'controls_repeat_ext',
+                'id': 'E8bF[-r:B~cabGLP#QYd',
+                'inputs': {
+                  'TIMES': {
+                    'shadow': {
+                      'type': 'math_number',
+                      'id': 'vOb`Us7f.bIuXRGd(K.e',
+                      'fields': {
+                        'NUM': 10,
+                      },
+                    },
+                    'block': {
+                      'type': 'logic_ternary',
+                      'id': 'AyS?@78RwAtQ$?aU[-$L',
+                      'inputs': {
+                        'IF': {
+                          'block': {
+                            'type': 'logic_boolean',
+                            'id': 'K@$Ewnj*Y6JcKR`mycf8',
+                            'fields': {
+                              'BOOL': 'FALSE',
+                            },
+                          },
+                        },
+                      },
+                    },
+                  },
+                },
+                'next': {
+                  'block': {
+                    'type': 'controls_repeat_ext',
+                    'id': 'XFO4v:Cf@2~rgH9CQZ]/',
+                    'inputs': {
+                      'TIMES': {
+                        'shadow': {
+                          'type': 'math_number',
+                          'id': 'jf)XYgvoi!c.3V[u@h+-',
+                          'fields': {
+                            'NUM': 10,
+                          },
+                        },
+                      },
+                    },
+                  },
+                },
+              },
+            },
+          },
+        ],
+      },
+    };
+    Blockly.serialization.workspaces.load(state, myWorkspace);
+    return myWorkspace.getAllBlocks(false).length;
+  });
+}
diff --git a/tests/browser/test/test_setup.js b/tests/browser/test/test_setup.js
index 74cc42dfd..588b2c52d 100644
--- a/tests/browser/test/test_setup.js
+++ b/tests/browser/test/test_setup.js
@@ -180,6 +180,26 @@ async function getBlockTypeFromCategory(browser, categoryName, blockType) {
   return getBlockElementById(browser, id);
 }
 
+/**
+ * @param browser The active WebdriverIO Browser object.
+ * @param blockType The type of the block to search for in the workspace.
+ * @param position The the position of the block type on the workspace.
+ * @return A Promise that resolves to the root element of the block with the
+ *     given position and type on the workspace.
+ */
+async function getBlockTypeFromWorkspace(browser, blockType, position) {
+  const id = await browser.execute(
+    (blockType, position) => {
+      return Blockly.getMainWorkspace().getBlocksByType(blockType, true)[
+        position
+      ].id;
+    },
+    blockType,
+    position
+  );
+  return getBlockElementById(browser, id);
+}
+
 /**
  * @param browser The active WebdriverIO Browser object.
  * @param id The ID of the block the connection is on.
@@ -338,4 +358,5 @@ module.exports = {
   contextMenuSelect,
   dragBlockTypeFromFlyout,
   screenDirection,
+  getBlockTypeFromWorkspace,
 };