App 2.19.1: Foreground apps diagnostic on the Logs tab

Read-only: recent foreground apps (usage events), open tasks, policy_control and the status bar height, for finding the CarPlay package before a full-screen experiment. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-23 20:30:54 +02:00
parent 461f9d5578
commit 209a231511
9 changed files with 345 additions and 7 deletions
@@ -0,0 +1,69 @@
+package com.evsuite.abrp;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.TimeZone;
+
+import org.junit.Test;
+
+/** The Logs tab's foreground-app lines — pure JVM. */
+public class ForegroundHistoryTest {
+
+    private static final TimeZone UTC = TimeZone.getTimeZone("UTC");
+
+    private static ForegroundHistory.Event at(long seconds, String pkg, String cls) {
+        return new ForegroundHistory.Event(seconds * 1000, pkg, cls);
+    }
+
+    @Test
+    public void newestFirstWithTheActivityShortened() {
+        List<String> lines = ForegroundHistory.lines(Arrays.asList(
+                at(3600, "com.saic.launcher", "com.saic.launcher.Home"),
+                at(3700, "com.example.carplay", "com.example.carplay.ui.ProjectionActivity")),
+                10, UTC);
+        assertEquals(Arrays.asList(
+                "01:01:40  com.example.carplay  .ui.ProjectionActivity",
+                "01:00:00  com.saic.launcher  .Home"), lines);
+    }
+
+    @Test
+    public void repeatsOfTheSameScreenCollapse() {
+        List<String> lines = ForegroundHistory.lines(Arrays.asList(
+                at(1, "a.b", "a.b.Main"),
+                at(2, "a.b", "a.b.Main"),
+                at(3, "a.b", "a.b.Other"),
+                at(4, "c.d", null),
+                at(5, "c.d", null)), 10, UTC);
+        assertEquals(Arrays.asList(
+                "00:00:04  c.d",
+                "00:00:03  a.b  .Other",
+                "00:00:01  a.b  .Main"), lines);
+    }
+
+    @Test
+    public void limitKeepsTheNewest() {
+        List<String> lines = ForegroundHistory.lines(Arrays.asList(
+                at(1, "one", null), at(2, "two", null), at(3, "three", null)), 2, UTC);
+        assertEquals(Arrays.asList("00:00:03  three", "00:00:02  two"), lines);
+    }
+
+    @Test
+    public void emptyAndBlankEventsGiveNoLines() {
+        assertTrue(ForegroundHistory.lines(Collections.emptyList(), 10, UTC).isEmpty());
+        assertTrue(ForegroundHistory.lines(Arrays.asList(null, at(1, "", null), at(2, null, "x")), 10, UTC).isEmpty());
+    }
+
+    @Test
+    public void aClassOutsideItsPackageStaysWhole() {
+        assertEquals("com.other.Activity", ForegroundHistory.shortClass("a.b", "com.other.Activity"));
+        assertEquals(".Main", ForegroundHistory.shortClass("a.b", "a.b.Main"));
+        assertNull(ForegroundHistory.shortClass("a.b", null));
+        // "a.bc.Main" is not inside "a.b".
+        assertEquals("a.bc.Main", ForegroundHistory.shortClass("a.b", "a.bc.Main"));
+    }
+}