Add track location as an option for the default track name

2012-06-07 15:42:23 -07:00
commit 2ef56797a5
639 changed files with 65346 additions and 0 deletions
@@ -0,0 +1,117 @@
+/*
+ * Copyright 2009 Google Inc. All Rights Reserved.
+ */
+
+package com.google.android.apps.mytracks.stats;
+
+import junit.framework.TestCase;
+
+/**
+ * Test for the DoubleBuffer class.
+ *
+ * @author Sandor Dornbush
+ */
+public class DoubleBufferTest extends TestCase {
+
+  /**
+   * Tests that the constructor leaves the buffer in a valid state.
+   */
+  public void testConstructor() {
+    DoubleBuffer buffer = new DoubleBuffer(10);
+    assertFalse(buffer.isFull());
+    assertEquals(0.0, buffer.getAverage());
+    double[] averageAndVariance = buffer.getAverageAndVariance();
+    assertEquals(0.0, averageAndVariance[0]);
+    assertEquals(0.0, averageAndVariance[1]);
+  }
+
+  /**
+   * Simple test with 10 of the same values.
+   */
+  public void testBasic() {
+    DoubleBuffer buffer = new DoubleBuffer(10);
+
+    for (int i = 0; i < 9; i++) {
+      buffer.setNext(1.0);
+      assertFalse(buffer.isFull());
+      assertEquals(1.0, buffer.getAverage());
+      double[] averageAndVariance = buffer.getAverageAndVariance();
+      assertEquals(1.0, averageAndVariance[0]);
+      assertEquals(0.0, averageAndVariance[1]);
+    }
+    buffer.setNext(1);
+    assertTrue(buffer.isFull());
+    assertEquals(1.0, buffer.getAverage());
+    double[] averageAndVariance = buffer.getAverageAndVariance();
+    assertEquals(1.0, averageAndVariance[0]);
+    assertEquals(0.0, averageAndVariance[1]);
+  }
+
+  /**
+   * Tests with 5 entries of -10 and 5 entries of 10.
+   */
+  public void testSplit() {
+    DoubleBuffer buffer = new DoubleBuffer(10);
+
+    for (int i = 0; i < 5; i++) {
+      buffer.setNext(-10);
+      assertFalse(buffer.isFull());
+      assertEquals(-10.0, buffer.getAverage());
+      double[] averageAndVariance = buffer.getAverageAndVariance();
+      assertEquals(-10.0, averageAndVariance[0]);
+      assertEquals(0.0, averageAndVariance[1]);
+    }
+
+    for (int i = 1; i < 5; i++) {
+      buffer.setNext(10);
+      assertFalse(buffer.isFull());
+      double expectedAverage = ((i * 10.0) - 50.0) / (i + 5);
+      assertEquals(buffer.toString(),
+                   expectedAverage, buffer.getAverage(), 0.01);
+      double[] averageAndVariance = buffer.getAverageAndVariance();
+      assertEquals(expectedAverage, averageAndVariance[0]);
+    }
+    buffer.setNext(10);
+    assertTrue(buffer.isFull());
+    assertEquals(0.0, buffer.getAverage());
+    double[] averageAndVariance = buffer.getAverageAndVariance();
+    assertEquals(0.0, averageAndVariance[0]);
+    assertEquals(100.0, averageAndVariance[1]);
+  }
+
+  /**
+   * Tests that reset leaves the buffer in a valid state.
+   */
+  public void testReset() {
+    DoubleBuffer buffer = new DoubleBuffer(10);
+
+    for (int i = 0; i < 100; i++) {
+      buffer.setNext(i);
+    }
+    assertTrue(buffer.isFull());
+
+    buffer.reset();
+    assertFalse(buffer.isFull());
+    assertEquals(0.0, buffer.getAverage());
+    double[] averageAndVariance = buffer.getAverageAndVariance();
+    assertEquals(0.0, averageAndVariance[0]);
+    assertEquals(0.0, averageAndVariance[1]);
+  }
+
+
+  /**
+   * Tests that if a lot of items are inserted the smoothing and looping works.
+   */
+  public void testLoop() {
+    DoubleBuffer buffer = new DoubleBuffer(10);
+
+    for (int i = 0; i < 1000; i++) {
+      buffer.setNext(i);
+      assertEquals(i >= 9, buffer.isFull());
+      if (i > 10) {
+        assertEquals(i - 4.5, buffer.getAverage());
+      }
+    }
+  }
+
+}