Package org.waveprotocol.wave.model.testing.RandomDocOpGenerator

Examples of org.waveprotocol.wave.model.testing.RandomDocOpGenerator.RandomProvider.nextInt()

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  }

  public void testNextIntThrowsIllegalArgumentException() {
    RandomProvider rp = RandomProviderImpl.ofSeed(42);
    try {
      rp.nextInt(0);
      fail("should throw IllegalArgumentException");
    } catch (IllegalArgumentException expected) {
      // success
    }
    try {
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      fail("should throw IllegalArgumentException");
    } catch (IllegalArgumentException expected) {
      // success
    }
    try {
      rp.nextInt(0x80000000);
      fail("should throw IllegalArgumentException");
    } catch (IllegalArgumentException expected) {
      // success
    }
  }
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    for (int seed : NUMBERS) {
      for (int bound : new int[]{ 2, 3, 4, 7, 16, 33 }) {
        RandomProvider rp = RandomProviderImpl.ofSeed(seed);
        int counts[] = new int[bound];
        for (int i = 0; i < ITERATIONS; i++) {
          counts[rp.nextInt(bound)]++; // fails with index-out-of-range if nextInt goes wrong
        }
        for (int j = 0; j < bound; j++) {
          assertTrue("seed " + seed + ", bound " + bound + ", index " + j + ", count " + counts[j],
              counts[j] >= (1.0 - MAX_DEVIATION) / bound * ITERATIONS);
          assertTrue("seed " + seed + ", bound " + bound + ", index " + j + ", count " + counts[j],
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