Decoupled screenshot test runner and screenshot comparison

client/android/divkit-demo-app/build.gradle

@@ -123,6 +123,7 @@ dependencies {
 
 screenshotTests {
     enabled = project.hasProperty("screenshot-tests")
+    enableComparison = project.hasProperty("screenshot-comparison")
     strictComparison = project.hasProperty("screenshot-strict-comparison")
     testAnnotations = ["com.yandex.test.screenshot.Screenshot"]
     deviceDir = "${android.defaultConfig.applicationId}/screenshots"

client/android/screenshot-test-plugin/src/main/java/com/yandex/test/screenshot/ScreenshotTestPlugin.kt

@@ -36,7 +36,11 @@ class ScreenshotTestPlugin : Plugin<Project> {
             }
         }
         project.tasks.register(ValidateTestResultsTask.NAME, ValidateTestResultsTask::class.java)
-        project.tasks.register(PullScreenshotsTask.NAME, PullScreenshotsTask::class.java)
+        project.tasks.register(PullScreenshotsTask.NAME, PullScreenshotsTask::class.java).configure {
+            if (screenshotTests.enableComparison) {
+                it.finalizedBy(CompareScreenshotsTask.NAME)
+            }
+        }
         project.tasks.register(CompareScreenshotsTask.NAME, CompareScreenshotsTask::class.java)
 
         project.tasks.whenTaskAdded { task ->
@@ -50,7 +54,7 @@ class ScreenshotTestPlugin : Plugin<Project> {
             val isDependentTask = task.name.run {
                 startsWith("connected") && endsWith("AndroidTest")
             }
-            if (enabled && isDependentTask) task.finalizedBy(CompareScreenshotsTask.NAME)
+            if (enabled && isDependentTask) task.finalizedBy(PullScreenshotsTask.NAME)
         }
 
         project.androidComponents.finalizeDsl {

client/android/screenshot-test-plugin/src/main/java/com/yandex/test/screenshot/ScreenshotTestPluginExtension.kt

@@ -3,6 +3,7 @@ package com.yandex.test.screenshot
 open class ScreenshotTestPluginExtension {
 
     var enabled: Boolean = true
+    var enableComparison: Boolean = true
     var strictComparison: Boolean = false
     var testAnnotations = mutableListOf<String>()
     var deviceDir = "screenshots"

client/android/screenshot-test-plugin/src/main/java/com/yandex/test/screenshot/tasks/CompareScreenshotsTask.kt

@@ -29,7 +29,6 @@ open class CompareScreenshotsTask : DefaultTask() {
 
     init {
         group = "verification"
-        this.dependsOn(PullScreenshotsTask.NAME)
     }
 
     @TaskAction