Add unit test for Spa footer

Also add two buttons test for ActionButtonsTest.

Bug: 260660819
Test: Unit test
Change-Id: I01912a1a92271868396769879026f6c93d0bb0f4

packages/SettingsLib/Spa/tests/src/com/android/settingslib/spa/widget/button/ActionButtonsTest.kt

@@ -17,11 +17,13 @@
 package com.android.settingslib.spa.widget.button
 
 import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.Close
 import androidx.compose.material.icons.outlined.Launch
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.test.assertIsDisplayed
+import androidx.compose.ui.test.getBoundsInRoot
 import androidx.compose.ui.test.junit4.createComposeRule
 import androidx.compose.ui.test.onNodeWithText
 import androidx.compose.ui.test.performClick
@@ -66,4 +68,19 @@ class ActionButtonsTest {
 
         assertThat(clicked).isTrue()
     }
+
+    @Test
+    fun twoButtons_positionIsAligned() {
+        composeTestRule.setContent {
+            ActionButtons(
+                listOf(
+                    ActionButton(text = "Open", imageVector = Icons.Outlined.Launch) {},
+                    ActionButton(text = "Close", imageVector = Icons.Outlined.Close) {},
+                )
+            )
+        }
+
+        assertThat(composeTestRule.onNodeWithText("Open").getBoundsInRoot().top)
+            .isEqualTo(composeTestRule.onNodeWithText("Close").getBoundsInRoot().top)
+    }
 }

packages/SettingsLib/Spa/tests/src/com/android/settingslib/spa/widget/ui/FooterTest.kt

@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settingslib.spa.widget.ui
+
+import androidx.compose.ui.test.assertIsDisplayed
+import androidx.compose.ui.test.assertIsNotDisplayed
+import androidx.compose.ui.test.junit4.createComposeRule
+import androidx.compose.ui.test.onNodeWithText
+import androidx.compose.ui.test.onRoot
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(AndroidJUnit4::class)
+class FooterTest {
+    @get:Rule
+    val composeTestRule = createComposeRule()
+
+    @Test
+    fun footer_isEmpty() {
+        composeTestRule.setContent {
+            Footer(footerText = "")
+        }
+
+        composeTestRule.onRoot().assertIsNotDisplayed()
+    }
+
+    @Test
+    fun footer_notEmpty_displayed() {
+        composeTestRule.setContent {
+            Footer(footerText = FOOTER_TEXT)
+        }
+
+        composeTestRule.onNodeWithText(FOOTER_TEXT).assertIsDisplayed()
+    }
+
+    private companion object {
+        const val FOOTER_TEXT = "Footer text"
+    }
+}