From 556add974e66ba495e882515a822eb50f10e88ee Mon Sep 17 00:00:00 2001
From: "Brian S. O'Neill" <bronee@gmail.com>
Date: Sat, 14 Oct 2006 17:43:50 +0000
Subject: Added layout tests.

---
 .../java/com/amazon/carbonado/TestUtilities.java   | 140 +++++++++++++++++++++
 1 file changed, 140 insertions(+)
 create mode 100644 src/test/java/com/amazon/carbonado/TestUtilities.java

(limited to 'src/test/java/com/amazon/carbonado/TestUtilities.java')

diff --git a/src/test/java/com/amazon/carbonado/TestUtilities.java b/src/test/java/com/amazon/carbonado/TestUtilities.java
new file mode 100644
index 0000000..65b4a13
--- /dev/null
+++ b/src/test/java/com/amazon/carbonado/TestUtilities.java
@@ -0,0 +1,140 @@
+/*
+ * Copyright 2006 Amazon Technologies, Inc. or its affiliates.
+ * Amazon, Amazon.com and Carbonado are trademarks or registered trademarks
+ * of Amazon Technologies, Inc. or its affiliates.  All rights reserved.
+ *
+ * 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.amazon.carbonado;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.Random;
+
+import com.amazon.carbonado.repo.sleepycat.BDBRepositoryBuilder;
+
+/**
+ * TestUtilities
+ *
+ * @author Don Schneider
+ * @author Brian S O'Neill
+ */
+public class TestUtilities {
+    public static final String FILE_PATH_KEY = "filepath";
+
+    // Keep memory usage low to prevent spurious out-of-memory errors while running tests.
+    private static final int DEFAULT_CAPACITY = 100000;
+
+    private static final Random sRandom = new Random();
+
+    public static String makeTestDirectoryString(String nameElement) {
+        return makeTestDirectory(nameElement).getAbsolutePath();
+    }
+
+    public static File makeTestDirectory(String nameElement) {
+        String dirPath = System.getProperty(FILE_PATH_KEY);
+        File dir;
+        if (dirPath == null) {
+            dir = new File(new File(System.getProperty("java.io.tmpdir")), "carbonado-test");
+        } else {
+            dir = new File(dirPath);
+        }
+        String path = nameElement + '-' + System.currentTimeMillis() + '-' + sRandom.nextInt(1000);
+        File file = new File(dir, path);
+        try {
+            // For better error reporting
+            file = file.getCanonicalFile();
+        } catch (IOException e) {
+            // Ignore.
+        }
+        // BDBRepositoryBuilder will make directory if it doesn't exist.
+        return file;
+    }
+
+    public static Repository buildTempRepository() {
+        return buildTempRepository("test");
+    }
+
+    public static Repository buildTempRepository(String name) {
+        return buildTempRepository(name, DEFAULT_CAPACITY);
+    }
+
+    public static Repository buildTempRepository(String name, int capacity) {
+        BDBRepositoryBuilder builder = new BDBRepositoryBuilder();
+        builder.setProduct("JE");
+        builder.setName(name);
+        builder.setTransactionNoSync(true);
+        builder.setCacheSize(capacity);
+        builder.setLogInMemory(true);
+
+        if (sTempRepoDir == null) {
+            sTempRepoDir = makeTestDirectoryString(name);
+        }
+
+        builder.setEnvironmentHome(sTempRepoDir);
+
+        try {
+            return builder.build();
+        } catch (RepositoryException e) {
+            throw new UnsupportedOperationException("Could not create repository", e);
+        }
+    }
+
+    private static String sTempRepoDir;
+
+    private static String sAlphabet = "abcdefghijklmnopqrstuvwxyz";
+    private static Random sNumbers = new Random();
+
+    public static void sAddRandomWord(StringBuffer buffer, int aCount) {
+        sAddRandomWord(buffer, aCount, sNumbers);
+    }
+
+    public static void sAddRandomWord(StringBuffer buffer, int aCount, Random rnd) {
+        int position = rnd.nextInt(sAlphabet.length());
+        char c = sAlphabet.charAt(position);
+        for (int i = 0; i < aCount; i++) {
+            buffer.append(c);
+        }
+    }
+
+    public static String sRandomText(int aMin, int aMax) {
+        return sRandomText(aMin, aMax, sNumbers);
+    }
+
+    public static String sRandomText(int aMin, int aMax, Random rnd) {
+        return sRandomText(rnd.nextInt(aMax-aMin) + aMin, rnd);
+    }
+
+    public static String sRandomText(int aCount) {
+        return sRandomText(aCount, sNumbers);
+    }
+
+    public static String sRandomText(int aCount, Random rnd) {
+        if (aCount <= 0) {
+            return "";
+        }
+
+        final StringBuffer buffer = new StringBuffer(aCount);
+        int filled = 0;
+        while (filled<aCount) {
+            int wordsize = rnd.nextInt(Math.min(10, aCount - filled)) + 1;
+            sAddRandomWord(buffer, wordsize, rnd);
+            filled += wordsize;
+            if (filled<aCount) {
+                buffer.append(' ');
+                filled++;
+            }
+        }
+        return buffer.toString();
+    }
+}
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