mobile/android/tests/background/junit3/src/helpers/DBHelpers.java

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/mobile/android/tests/background/junit3/src/helpers/DBHelpers.java	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,84 @@
     1.4 +/* Any copyright is dedicated to the Public Domain.
     1.5 +   http://creativecommons.org/publicdomain/zero/1.0/ */
     1.6 +
     1.7 +package org.mozilla.gecko.background.helpers;
     1.8 +
     1.9 +import android.database.Cursor;
    1.10 +import android.database.sqlite.SQLiteDatabase;
    1.11 +import junit.framework.Assert;
    1.12 +
    1.13 +public class DBHelpers {
    1.14 +
    1.15 +  /*
    1.16 +   * Works for strings and int-ish values.
    1.17 +   */
    1.18 +  public static void assertCursorContains(Object[][] expected, Cursor actual) {
    1.19 +    Assert.assertEquals(expected.length, actual.getCount());
    1.20 +    int i = 0, j = 0;
    1.21 +    Object[] row;
    1.22 +
    1.23 +    do {
    1.24 +      row = expected[i];
    1.25 +      for (j = 0; j < row.length; ++j) {
    1.26 +        Object atIndex = row[j];
    1.27 +        if (atIndex == null) {
    1.28 +          continue;
    1.29 +        }
    1.30 +        if (atIndex instanceof String) {
    1.31 +          Assert.assertEquals(atIndex, actual.getString(j));
    1.32 +        } else {
    1.33 +          Assert.assertEquals(atIndex, actual.getInt(j));
    1.34 +        }
    1.35 +      }
    1.36 +      ++i;
    1.37 +    } while (actual.moveToPosition(i));
    1.38 +  }
    1.39 +
    1.40 +  public static int getRowCount(SQLiteDatabase db, String table) {
    1.41 +    return getRowCount(db, table, null, null);
    1.42 +  }
    1.43 +
    1.44 +  public static int getRowCount(SQLiteDatabase db, String table, String selection, String[] selectionArgs) {
    1.45 +    final Cursor c = db.query(table, null, selection, selectionArgs, null, null, null);
    1.46 +    try {
    1.47 +      return c.getCount();
    1.48 +    } finally {
    1.49 +      c.close();
    1.50 +    }
    1.51 +  }
    1.52 +
    1.53 +  /**
    1.54 +   * Returns an ID that is non-existent in the given sqlite table. Assumes that a column named
    1.55 +   * "id" exists.
    1.56 +   */
    1.57 +  public static int getNonExistentID(SQLiteDatabase db, String table) {
    1.58 +    // XXX: We should use selectionArgs to concatenate table, but sqlite throws a syntax error on
    1.59 +    // "?" because it wants to ensure id is a valid column in table.
    1.60 +    final Cursor c = db.rawQuery("SELECT MAX(id) + 1 FROM " + table, null);
    1.61 +    try {
    1.62 +      if (!c.moveToNext()) {
    1.63 +        return 0;
    1.64 +      }
    1.65 +      return c.getInt(0);
    1.66 +    } finally {
    1.67 +      c.close();
    1.68 +    }
    1.69 +  }
    1.70 +
    1.71 +  /**
    1.72 +   * Returns an ID that exists in the given sqlite table. Assumes that a column named * "id"
    1.73 +   * exists.
    1.74 +   */
    1.75 +  public static long getExistentID(SQLiteDatabase db, String table) {
    1.76 +    final Cursor c = db.query(table, new String[] {"id"}, null, null, null, null, null, "1");
    1.77 +    try {
    1.78 +      if (!c.moveToNext()) {
    1.79 +        throw new IllegalStateException("Given table does not contain any entries.");
    1.80 +      }
    1.81 +      return c.getInt(0);
    1.82 +    } finally {
    1.83 +      c.close();
    1.84 +    }
    1.85 +  }
    1.86 +
    1.87 +}

mercurial