make ctx.addCtx protected, add option for monitoring time to support …

…non-node environments

package.json

@@ -1,6 +1,6 @@
 {
   "name": "start-testing",
-  "version": "1.0.1",
+  "version": "1.0.3",
   "description": "Start Testing is a lightweight Typescript Testing Library with 0 dependencies and a minimal yet flexible API to get you from concept to validation as fast as possible",
   "keywords": [
     "typescript",

src/context.ts

@@ -3,8 +3,13 @@ import { Logger } from './logger'
 export type Test = (t: Context, ...args: any[]) => Promise<void>
 export type Tests = Record<string, Test>
 
+interface PerformanceMonitor {
+    now(): number
+}
+
 export type ContextOptions = {
     logger: Logger
+    performance?: PerformanceMonitor
 }
 
 export class Context {
@@ -15,8 +20,11 @@ export class Context {
     protected subContexts: Context[] = []
     protected logger: Logger
 
+    private performance: PerformanceMonitor
+
     constructor(protected readonly name: string, protected readonly opts: ContextOptions) {
         this.logger = opts.logger.new()
+        this.performance = this.opts.performance || Date
     }
 
     log(...message: any[]) {
@@ -33,7 +41,7 @@ export class Context {
     }
 
     async run(name: string, test: Test): Promise<void> {
-        const start = performance.now()
+        const start = this.performance.now()
         const ctx = this.addCtx(`${this.name} / ${name}`)
         try {
             ctx.logger.info(`TEST: ${ctx.name}...`)
@@ -52,14 +60,14 @@ export class Context {
                     ctx.logger.print(ctx.exception.stack)
                 }
             } else {
-                const ms = Math.floor((performance.now() - start) * 1000) / 1000
+                const ms = Math.ceil((this.performance.now() - start) * 1000) / 1000
                 ctx.logger.success(`PASSED! (${ms} ms)`)
             }
             ctx.logger.dump()
         }
     }
 
-    private addCtx(name: string) {
+    protected addCtx(name: string) {
         const ctx = this.new(name)
         this.subContexts.push(ctx)
         return ctx

src/runner.ts

@@ -2,7 +2,7 @@ import { Context, Tests } from './context'
 import { Logger } from './logger'
 
 const defaultOptions = { 
-    logger: new Logger() 
+    logger: new Logger()
 }
 
 export class Runner extends Context {