private void assertStartingValues(final VM vm) {
    assertEquals(0, getTotalCompressionTimeOnVm(vm, null));
    assertEquals(0, getTotalCompressionTimeOnVm(vm, REGION_NAME));
    assertEquals(0, getTotalCompressionTimeOnVm(vm, REGION_NAME_2));

    assertEquals(0, getTotalDecompressionTimeOnVm(vm, null));
    assertEquals(0, getTotalDecompressionTimeOnVm(vm, REGION_NAME));
    assertEquals(0, getTotalDecompressionTimeOnVm(vm, REGION_NAME_2));

    assertEquals(0, getTotalCompressionsOnVm(vm, null));
    assertEquals(0, getTotalCompressionsOnVm(vm, REGION_NAME));
    assertEquals(0, getTotalCompressionsOnVm(vm, REGION_NAME_2));

    assertEquals(0, getTotalDecompressionsOnVm(vm, null));
    assertEquals(0, getTotalDecompressionsOnVm(vm, REGION_NAME));
    assertEquals(0, getTotalDecompressionsOnVm(vm, REGION_NAME_2));

    assertEquals(0, getTotalPreCompressedBytesOnVm(vm, null));
    assertEquals(0, getTotalPreCompressedBytesOnVm(vm, REGION_NAME));
    assertEquals(0, getTotalPreCompressedBytesOnVm(vm, REGION_NAME_2));

    assertEquals(0, getTotalPostCompressedBytesOnVm(vm, null));
    assertEquals(0, getTotalPostCompressedBytesOnVm(vm, REGION_NAME));
    assertEquals(0, getTotalPostCompressedBytesOnVm(vm, REGION_NAME_2));
  }
Asserts that all compression statistics start with zero values.

@param vm the virtual machine to gather statistics on.
geode-core/src/distributedTest/java/org/apache/geode/internal/compression/CompressionStatsDUnitTest.java