Parse the battery usage statistics

Change-Id: I5000e4352ded2eaa004bc486242c241bcdf4dada

2 files changed, 109 insertions, 0 deletions

diff --git a/tests/src/com/android/loganalysis/item/BatteryUsageItemTest.java b/tests/src/com/android/loganalysis/item/BatteryUsageItemTest.java
new file mode 100644
index 0000000..b44a432
--- /dev/null
+++ b/tests/src/com/android/loganalysis/item/BatteryUsageItemTest.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2015 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.loganalysis.item;
+
+import com.android.loganalysis.item.BatteryUsageItem.BatteryUsageInfoItem;
+
+import junit.framework.TestCase;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+/**
+ * Unit test for {@link BatteryUsageItem}.
+ */
+public class BatteryUsageItemTest extends TestCase {
+
+    /**
+     * Test that {@link BatteryUsageItem#toJson()} returns correctly.
+     */
+    public void testToJson() throws JSONException {
+        BatteryUsageItem item = new BatteryUsageItem();
+        item.addBatteryUsage("Cell standby", 2925);
+        item.addBatteryUsage("Uid u0a71", 68.1);
+        // Convert to JSON string and back again
+        JSONObject output = new JSONObject(item.toJson().toString());
+
+        assertTrue(output.has(BatteryUsageItem.BATTERY_CAPACITY));
+        assertTrue(output.get(BatteryUsageItem.BATTERY_USAGE) instanceof JSONArray);
+
+        JSONArray usage = output.getJSONArray(BatteryUsageItem.BATTERY_USAGE);
+
+        assertEquals(2, usage.length());
+        assertTrue(usage.getJSONObject(0).has(BatteryUsageInfoItem.NAME));
+        assertTrue(usage.getJSONObject(0).has(BatteryUsageInfoItem.USAGE));
+
+        assertTrue(usage.getJSONObject(1).has(BatteryUsageInfoItem.NAME));
+        assertTrue(usage.getJSONObject(1).has(BatteryUsageInfoItem.USAGE));
+    }
+}
diff --git a/tests/src/com/android/loganalysis/parser/BatteryUsageParserTest.java b/tests/src/com/android/loganalysis/parser/BatteryUsageParserTest.java
new file mode 100644
index 0000000..20a9a2e
--- /dev/null
+++ b/tests/src/com/android/loganalysis/parser/BatteryUsageParserTest.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2015 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.loganalysis.parser;
+
+import com.android.loganalysis.item.BatteryUsageItem;
+
+import junit.framework.TestCase;
+
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * Unit tests for {@link BatteryUsageParser}
+ */
+public class BatteryUsageParserTest extends TestCase {
+
+    private static final double EPSILON = 1e-3;
+    /**
+     * Test that normal input is parsed.
+     */
+    public void testBatteryUsageParser() {
+        List<String> inputBlock = Arrays.asList(
+                "    Capacity: 3220, Computed drain: 11.0, actual drain: 0",
+                "    Screen: 8.93",
+                "    Idle: 1.23",
+                "    Uid 0: 0.281",
+                "    Uid u0a36: 0.200",
+                "    Uid 1000: 0.165",
+                "    Uid 1013: 0.0911",
+                "    Uid u0a16: 0.0441");
+
+        BatteryUsageItem usage = new BatteryUsageParser().parse(inputBlock);
+
+        assertEquals(3220, usage.getBatteryCapacity());
+        assertEquals(7, usage.getBatteryUsage().size());
+
+        assertEquals("Screen", usage.getBatteryUsage().get(0).getName());
+        assertEquals(8.93, usage.getBatteryUsage().get(0).getUsage(), EPSILON);
+        assertEquals("Uid u0a16", usage.getBatteryUsage().get(6).getName());
+        assertEquals(0.0441, usage.getBatteryUsage().get(6).getUsage());
+    }
+}
+