Coverage Summary for Class: WebViewReadyChecker (cloud.mindbox.mobile_sdk.inapp.presentation.view)

 package cloud.mindbox.mobile_sdk.inapp.presentation.view
 
 /**
  * Polls the page for the JS bridge instead of deciding on a single onPageFinished-time probe.
  *
  * Module scripts can finish evaluating a beat after the page's load event on slow devices or
  * with a cold cache, so one early `false` must not close a healthy in-app. The check re-runs
  * on a short cadence and gives up only after the full budget; a new navigation (or teardown)
  * cancels the previous checker outright. Mirrors the iOS SDK's WebViewReadyChecker.
  *
  * Pure logic: evaluation and scheduling are injected, so the class is JVM-testable.
  */
 internal class WebViewReadyChecker(
     private val evaluate: (script: String, resultCallback: (String?) -> Unit) -> Unit,
     private val schedule: (delayMillis: Long, action: () -> Unit) -> Unit,
 ) {
 
     companion object {
         const val MAX_ATTEMPTS: Int = 8
         const val RETRY_DELAY_MS: Long = 150L
     }
 
     @Volatile
     private var isCancelled = false
 
     fun run(
         script: String,
         expectedResult: String,
         onReady: () -> Unit,
         onGiveUp: (lastFailure: String) -> Unit
     ) {
         attempt(1, script, expectedResult, onReady, onGiveUp)
     }
 
     /**
      * Abandons the poll without calling either completion — the caller's new navigation
      * (or teardown) owns readiness from here.
      */
     fun cancel() {
         isCancelled = true
     }
 
     private fun attempt(
         number: Int,
         script: String,
         expectedResult: String,
         onReady: () -> Unit,
         onGiveUp: (String) -> Unit
     ) {
         if (isCancelled) return
         evaluate(script) { result ->
             if (isCancelled) return@evaluate
             if (result == expectedResult) {
                 onReady()
                 return@evaluate
             }
             if (number >= MAX_ATTEMPTS) {
                 onGiveUp("evaluateJavaScript returned unexpected response: $result")
                 return@evaluate
             }
             schedule(RETRY_DELAY_MS) {
                 attempt(number + 1, script, expectedResult, onReady, onGiveUp)
             }
         }
     }
 }