Make hotseat fit one line on tablets

When running on tablets in landscape, the QSB should inline with the hotseat icons. This does that and fixes small bugs that didn't account for the new hotseatBorderSpace.

Bug: 210118169
Test: atest Launcher3Tests:DeviceProfileTest
Test: visual, using HSV and Window
Change-Id: I5a89c5449bf59fde736618151eceaacca443ef67
diff --git a/tests/Android.bp b/tests/Android.bp
index 8def20f..f3e0500 100644
--- a/tests/Android.bp
+++ b/tests/Android.bp
@@ -23,7 +23,10 @@
 // Source code used for test
 filegroup {
     name: "launcher-tests-src",
-    srcs: ["src/**/*.java"],
+    srcs: [
+      "src/**/*.java",
+      "src/**/*.kt"
+    ],
 }
 
 // Source code used for oop test helpers
diff --git a/tests/src/com/android/launcher3/DeviceProfileTest.kt b/tests/src/com/android/launcher3/DeviceProfileTest.kt
new file mode 100644
index 0000000..6c99a21
--- /dev/null
+++ b/tests/src/com/android/launcher3/DeviceProfileTest.kt
@@ -0,0 +1,192 @@
+/*
+ * 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.launcher3
+
+import android.content.Context
+import android.graphics.PointF
+import androidx.test.core.app.ApplicationProvider
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.filters.SmallTest
+import com.android.launcher3.util.DisplayController.Info
+import com.android.launcher3.util.WindowBounds
+import com.google.common.truth.Truth.assertThat
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.Mockito.*
+
+@SmallTest
+@RunWith(AndroidJUnit4::class)
+class DeviceProfileTest {
+
+    private var context: Context? = null
+    private var inv: InvariantDeviceProfile? = null
+    private var info: Info = mock(Info::class.java)
+    private var windowBounds: WindowBounds? = null
+    private var isMultiWindowMode: Boolean = false
+    private var transposeLayoutWithOrientation: Boolean = false
+    private var useTwoPanels: Boolean = false
+
+    @Before
+    fun setUp() {
+        context = ApplicationProvider.getApplicationContext()
+        // make sure to reset values
+        useTwoPanels = false
+    }
+
+    @Test
+    fun qsbWidth_is_match_parent_for_phones() {
+        initializeVarsForPhone()
+
+        val dp = DeviceProfile(
+            context,
+            inv,
+            info,
+            windowBounds,
+            isMultiWindowMode,
+            transposeLayoutWithOrientation,
+            useTwoPanels
+        )
+
+        assertThat(dp.isQsbInline).isFalse()
+        assertThat(dp.qsbWidth).isEqualTo(0)
+    }
+
+    @Test
+    fun qsbWidth_is_match_parent_for_tablet_portrait() {
+        initializeVarsForTablet()
+
+        val dp = DeviceProfile(
+            context,
+            inv,
+            info,
+            windowBounds,
+            isMultiWindowMode,
+            transposeLayoutWithOrientation,
+            useTwoPanels
+        )
+
+        assertThat(dp.isQsbInline).isFalse()
+        assertThat(dp.qsbWidth).isEqualTo(0)
+    }
+
+    @Test
+    fun qsbWidth_has_size_for_tablet_landscape() {
+        initializeVarsForTablet(true)
+
+        val dp = DeviceProfile(
+            context,
+            inv,
+            info,
+            windowBounds,
+            isMultiWindowMode,
+            transposeLayoutWithOrientation,
+            useTwoPanels
+        )
+
+        if (dp.hotseatQsbHeight > 0) {
+            assertThat(dp.isQsbInline).isTrue()
+            assertThat(dp.qsbWidth).isGreaterThan(0)
+        } else {
+            assertThat(dp.isQsbInline).isFalse()
+            assertThat(dp.qsbWidth).isEqualTo(0)
+        }
+    }
+
+    /**
+     * This test is to make sure that two panels don't inline the QSB as tablets do
+     */
+    @Test
+    fun qsbWidth_is_match_parent_for_two_panel_landscape() {
+        initializeVarsForTablet(true)
+        useTwoPanels = true
+
+        val dp = DeviceProfile(
+            context,
+            inv,
+            info,
+            windowBounds,
+            isMultiWindowMode,
+            transposeLayoutWithOrientation,
+            useTwoPanels
+        )
+
+        assertThat(dp.isQsbInline).isFalse()
+        assertThat(dp.qsbWidth).isEqualTo(0)
+    }
+
+    private fun initializeVarsForPhone(isLandscape: Boolean = false) {
+        val (x, y) = if (isLandscape)
+            Pair(3120, 1440)
+        else
+            Pair(1440, 3120)
+
+        windowBounds = WindowBounds(x, y, x, y - 100)
+
+        `when`(info.isTablet(any())).thenReturn(false)
+
+        scalableInvariantDeviceProfile()
+    }
+
+    private fun initializeVarsForTablet(isLandscape: Boolean = false) {
+        val (x, y) = if (isLandscape)
+            Pair(2560, 1600)
+        else
+            Pair(1600, 2560)
+
+        windowBounds = WindowBounds(x, y, x, y - 100)
+
+        `when`(info.isTablet(any())).thenReturn(true)
+
+        scalableInvariantDeviceProfile()
+    }
+
+    /**
+     * A very generic grid, just to make qsb tests work. For real calculations, make sure to use
+     * values that better represent a real grid.
+     */
+    private fun scalableInvariantDeviceProfile() {
+        inv = InvariantDeviceProfile().apply {
+            isScalable = true
+            numColumns = 5
+            numRows = 5
+            horizontalMargin = FloatArray(4) { 22f }
+            borderSpaces = listOf(
+                PointF(16f, 16f),
+                PointF(16f, 16f),
+                PointF(16f, 16f),
+                PointF(16f, 16f)
+            ).toTypedArray()
+            allAppsBorderSpaces = listOf(
+                PointF(16f, 16f),
+                PointF(16f, 16f),
+                PointF(16f, 16f),
+                PointF(16f, 16f)
+            ).toTypedArray()
+            hotseatBorderSpaces = FloatArray(4) { 16f }
+            iconSize = FloatArray(4) { 56f }
+            allAppsIconSize = FloatArray(4) { 56f }
+            iconTextSize = FloatArray(4) { 14f }
+            allAppsIconTextSize = FloatArray(4) { 14f }
+            minCellSize = listOf(
+                PointF(64f, 83f),
+                PointF(64f, 83f),
+                PointF(64f, 83f),
+                PointF(64f, 83f)
+            ).toTypedArray()
+        }
+    }
+}
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