Custom startup benchmark

Change-Id: Ib402e5d818843cd305344be8283c7fa135291abe

benchmarks/src/main/java/com/google/samples/apps/nowinandroid/startup/StartupBenchmark.kt

@@ -90,3 +90,32 @@ abstract class AbstractStartupBenchmark(private val startupMode: StartupMode) {
         forYouWaitForContent()
     }
 }
+
+class StartupBenchmark {
+    @get:Rule
+    val benchmarkRule = MacrobenchmarkRule()
+
+    @Test
+    fun startupNoCompilation() = startup(CompilationMode.None())
+
+    @Test
+    fun startupBaselineProfile() = startup(CompilationMode.Partial(baselineProfileMode = Require))
+
+    @Test
+    fun startupFullCompilation() = startup(CompilationMode.Full())
+
+    private fun startup(compilationMode: CompilationMode) = benchmarkRule.measureRepeated(
+        packageName = PACKAGE_NAME,
+        metrics = listOf(StartupTimingMetric()),
+        compilationMode = compilationMode,
+        iterations = 30,
+        startupMode = COLD,
+        setupBlock = {
+            pressHome()
+        }
+    ) {
+        startActivityAndWait()
+        // Waits until the content is ready to capture Time To Full Display
+        forYouWaitForContent()
+    }
+}