feat: Add 'slowTestThreshold' and fix this.slow() inside specs

cli/schema/cypress.schema.json

@@ -44,6 +44,11 @@
           "default": null,
           "description": "The reporter options used. Supported options depend on the reporter. See https://on.cypress.io/reporters#Reporter-Options"
         },
+        "slowTestThreshold": {
+          "type": "number",
+          "default": null,
+          "description": "Slow test threshold in milliseconds. Only affects the visual output of some reporters. For example, the spec reporter will display the test time in yellow if over the threshold. Defaults to 10000ms for e2e tests and 250ms for component tests. See https://on.cypress.io/configuration#Global"
+        },
         "testFiles": {
           "type": [
             "string",

cli/types/cypress-npm-api.d.ts

@@ -91,6 +91,10 @@ declare namespace CypressCommandLine {
      * Specify mocha reporter options
      */
     reporterOptions: any
+    /**
+     * Slow test threshold in milliseconds. Only affects the visual output of some reporters. For example, the spec reporter will display the test time in yellow if over the threshold.
+     */
+    slowTestThreshold: number
     /**
      * Specify the specs to run
      */

cli/types/cypress.d.ts

@@ -2577,6 +2577,11 @@ declare namespace Cypress {
      * @default "spec"
      */
     reporterOptions: { [key: string]: any }
+    /**
+     * Slow test threshold in milliseconds. Only affects the visual output of some reporters. For example, the spec reporter will display the test time in yellow if over the threshold. Defaults to 10000ms for e2e tests and 250ms for component tests.
+     * @default null
+     */
+    slowTestThreshold: number | null
     /**
      * Whether Cypress will watch and restart tests on test file changes
      * @default true

packages/driver/src/cypress/mocha.ts

@@ -500,6 +500,10 @@ const create = (specWindow, Cypress, config) => {
 
   const _mocha = createMocha(specWindow)
 
+  const slowTestThreshold = config('slowTestThreshold') ?? (Cypress.testingType === 'e2e' ? 10000 : 250)
+
+  _mocha.slow(slowTestThreshold)
+
   const _runner = getRunner(_mocha)
 
   _mocha.suite.file = Cypress.spec.relative

packages/driver/src/cypress/runner.ts

@@ -21,7 +21,7 @@ const TEST_BEFORE_RUN_EVENT = 'runner:test:before:run'
 const TEST_AFTER_RUN_EVENT = 'runner:test:after:run'
 
 const RUNNABLE_LOGS = 'routes agents commands hooks'.split(' ')
-const RUNNABLE_PROPS = '_testConfig id order title _titlePath root hookName hookId err state failedFromHookId body speed type duration wallClockStartedAt wallClockDuration timings file originalTitle invocationDetails final currentRetry retries'.split(' ')
+const RUNNABLE_PROPS = '_testConfig id order title _titlePath root hookName hookId err state failedFromHookId body speed type duration wallClockStartedAt wallClockDuration timings file originalTitle invocationDetails final currentRetry retries _slow'.split(' ')
 
 const debug = debugFn('cypress:driver:runner')
 const debugErrors = debugFn('cypress:driver:errors')