1 files changed, 120 insertions, 0 deletions
diff --git a/mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/GeckoAppShellTest.kt b/mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/GeckoAppShellTest.kt
new file mode 100644
index 0000000000..c05820012d
--- /dev/null
+++ b/mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/GeckoAppShellTest.kt
@@ -0,0 +1,120 @@
+/* -*- Mode: Java; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil; -*-
+ * Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+package org.mozilla.geckoview.test
+
+import android.os.Handler
+import android.os.Looper
+import android.provider.Settings
+import android.text.format.DateFormat
+import androidx.test.ext.junit.rules.ActivityScenarioRule
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.filters.MediumTest
+import androidx.test.platform.app.InstrumentationRegistry
+import org.hamcrest.Matchers.* // ktlint-disable no-wildcard-imports
+import org.junit.After
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.rules.RuleChain
+import org.junit.runner.RunWith
+import org.mozilla.gecko.GeckoAppShell
+import org.mozilla.geckoview.Autofill
+import org.mozilla.geckoview.GeckoSession
+import org.mozilla.geckoview.test.rule.GeckoSessionTestRule
+
+@RunWith(AndroidJUnit4::class)
+@MediumTest
+class GeckoAppShellTest : BaseSessionTest() {
+    private val activityRule = ActivityScenarioRule(GeckoViewTestActivity::class.java)
+    private val context = InstrumentationRegistry.getInstrumentation().targetContext
+    private var prior24HourSetting = true
+
+    @get:Rule
+    override val rules: RuleChain = RuleChain.outerRule(activityRule).around(sessionRule)
+
+    @Before
+    fun setup() {
+        activityRule.scenario.onActivity {
+            prior24HourSetting = DateFormat.is24HourFormat(context)
+            it.view.setSession(sessionRule.session)
+        }
+    }
+
+    @After
+    fun cleanup() {
+        activityRule.scenario.onActivity {
+            // Return the test harness back to original setting
+            setAndroid24HourTimeFormat(prior24HourSetting)
+            it.view.releaseSession()
+        }
+    }
+
+    // Sets the Android system is24HourFormat preference
+    private fun setAndroid24HourTimeFormat(timeFormat: Boolean) {
+        val setting = if (timeFormat) "24" else "12"
+        Settings.System.putString(context.contentResolver, Settings.System.TIME_12_24, setting)
+    }
+
+    // Sends app to background, then to foreground, and finally loads a page
+    private fun goHomeAndReturnWithPageLoad() {
+        // Ensures a return to the foreground (onResume)
+        Handler(Looper.getMainLooper()).postDelayed({
+            sessionRule.requestActivityToForeground(context)
+            // Will call onLoadRequest and allow test to finish
+            mainSession.loadTestPath(HELLO_HTML_PATH)
+            mainSession.waitForPageStop()
+        }, 1500)
+
+        // Will cause onPause event to occur
+        sessionRule.simulatePressHome(context)
+    }
+
+    @GeckoSessionTestRule.NullDelegate(Autofill.Delegate::class)
+    @Test
+    fun testChange24HourClockSettings() {
+        activityRule.scenario.onActivity {
+            var onLoadRequestCount = 0
+
+            // First clock settings change, takes effect on next onResume
+            // Time format that does not use AM/PM, e.g., 13:00
+            setAndroid24HourTimeFormat(true)
+            // Causes an onPause event, onResume event, and finally a page load request
+            goHomeAndReturnWithPageLoad()
+
+            // This is waiting and holding the test harness open while Android Lifecycle events complete
+            mainSession.waitUntilCalled(object : GeckoSession.ContentDelegate, GeckoSession.NavigationDelegate {
+                @GeckoSessionTestRule.AssertCalled(count = 2)
+                override fun onLocationChange(
+                    session: GeckoSession,
+                    url: String?,
+                    perms: MutableList<GeckoSession.PermissionDelegate.ContentPermission>,
+                ) {
+                    // Result of first clock settings change
+                    if (onLoadRequestCount == 0) {
+                        assertThat(
+                            "Should use a 24 hour clock.",
+                            GeckoAppShell.getIs24HourFormat(),
+                            equalTo(true),
+                        )
+                        onLoadRequestCount++
+
+                        // Calling second clock settings change
+                        // Time format that does use AM/PM, e.g., 1:00 PM
+                        setAndroid24HourTimeFormat(false)
+                        goHomeAndReturnWithPageLoad()
+
+                        // Result of second clock settings change
+                    } else {
+                        assertThat(
+                            "Should use a 12 hour clock.",
+                            GeckoAppShell.getIs24HourFormat(),
+                            equalTo(false),
+                        )
+                    }
+                }
+            })
+        }
+    }
+}