Merge "First Unit Tests for Utilities.java" into main

tests/multivalentTests/src/com/android/launcher3/UtilitiesTest.kt

@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2024 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.launcher3
+
+import android.content.Context
+import android.view.View
+import android.view.ViewGroup
+import androidx.test.core.app.ApplicationProvider.getApplicationContext
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.android.launcher3.util.ActivityContextWrapper
+import org.junit.Assert.*
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(AndroidJUnit4::class)
+class UtilitiesTest {
+
+    private lateinit var mContext: Context
+
+    @Before
+    fun setUp() {
+        mContext = ActivityContextWrapper(getApplicationContext())
+    }
+
+    @Test
+    fun testIsPropertyEnabled() {
+        // This assumes the property "propertyName" is not enabled by default
+        assertFalse(Utilities.isPropertyEnabled("propertyName"))
+    }
+
+    @Test
+    fun testGetDescendantCoordRelativeToAncestor() {
+        val ancestor =
+            object : ViewGroup(mContext) {
+                override fun onLayout(changed: Boolean, l: Int, t: Int, r: Int, b: Int) {}
+            }
+        val descendant = View(mContext)
+
+        descendant.x = 50f
+        descendant.y = 30f
+        descendant.scaleX = 2f
+        descendant.scaleY = 2f
+
+        ancestor.addView(descendant)
+
+        val coord = floatArrayOf(10f, 15f)
+        val scale =
+            Utilities.getDescendantCoordRelativeToAncestor(descendant, ancestor, coord, false)
+
+        assertEquals(2f, scale) // Expecting scale to be 2f
+        assertEquals(70f, coord[0])
+        assertEquals(60f, coord[1])
+    }
+
+    @Test
+    fun testRoundArray() {
+        val floatArray = floatArrayOf(1.2f, 3.7f, 5.5f)
+        val intArray = IntArray(3)
+        Utilities.roundArray(floatArray, intArray)
+        assertArrayEquals(intArrayOf(1, 4, 6), intArray)
+    }
+
+    @Test
+    fun testOffsetPoints() {
+        val points = floatArrayOf(1f, 2f, 3f, 4f)
+        Utilities.offsetPoints(points, 5f, 6f)
+
+        val expected = listOf(6f, 8f, 8f, 10f)
+        assertEquals(expected, points.toList())
+    }
+
+    @Test
+    fun testPointInView() {
+        val view = View(mContext)
+        view.layout(0, 0, 100, 100)
+
+        assertTrue(Utilities.pointInView(view, 50f, 50f, 0f)) // Inside view
+        assertFalse(Utilities.pointInView(view, -10f, -10f, 0f)) // Outside view
+        assertTrue(Utilities.pointInView(view, -5f, -5f, 10f)) // Inside slop
+        assertFalse(Utilities.pointInView(view, 115f, 115f, 10f)) // Outside slop
+    }
+}