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regression test for bug 1964

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This commit is contained in:
Tom Henderson
2014-09-12 12:55:00 -07:00
parent 077579b060
commit 3048ebcced
1 changed files with 34 additions and 0 deletions
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34
src/core/test/random-variable-stream-test-suite.cc
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@@ -162,6 +162,40 @@ RandomVariableStreamUniformTestCase::DoRun (void)
NS_TEST_ASSERT_MSG_LT (value, max, "Value greater than or equal to maximum.");
}
// Boundary checking on GetInteger; should be [min,max]; from bug 1964
static const uint32_t UNIFORM_INTEGER_MIN = 0;
static const uint32_t UNIFORM_INTEGER_MAX = 4294967295U;
// [0,0] should return 0
uint32_t intValue;
intValue = x->GetInteger (UNIFORM_INTEGER_MIN, UNIFORM_INTEGER_MIN);
NS_TEST_ASSERT_MSG_EQ (intValue, UNIFORM_INTEGER_MIN, "Uniform RV GetInteger boundary testing");
// [UNIFORM_INTEGER_MAX, UNIFORM_INTEGER_MAX] should return UNIFORM_INTEGER_MAX
intValue = x->GetInteger (UNIFORM_INTEGER_MAX, UNIFORM_INTEGER_MAX);
NS_TEST_ASSERT_MSG_EQ (intValue, UNIFORM_INTEGER_MAX, "Uniform RV GetInteger boundary testing");
// [0,1] should return mix of 0 or 1
intValue = 0;
for (int i = 0; i < 20; i++)
{
intValue += x->GetInteger (UNIFORM_INTEGER_MIN, UNIFORM_INTEGER_MIN + 1);
}
NS_TEST_ASSERT_MSG_GT (intValue, 0, "Uniform RV GetInteger boundary testing");
NS_TEST_ASSERT_MSG_LT (intValue, 20, "Uniform RV GetInteger boundary testing");
// [MAX-1,MAX] should return mix of MAX-1 or MAX
uint32_t count = 0;
for (int i = 0; i < 20; i++)
{
intValue = x->GetInteger (UNIFORM_INTEGER_MAX - 1, UNIFORM_INTEGER_MAX);
if (intValue == UNIFORM_INTEGER_MAX)
{
count++;
}
}
NS_TEST_ASSERT_MSG_GT (count, 0, "Uniform RV GetInteger boundary testing");
NS_TEST_ASSERT_MSG_LT (count, 20, "Uniform RV GetInteger boundary testing");
// multiple [0,UNIFORM_INTEGER_MAX] should return non-zero
intValue = x->GetInteger (UNIFORM_INTEGER_MIN, UNIFORM_INTEGER_MAX);
uint32_t intValue2 = x->GetInteger (UNIFORM_INTEGER_MIN, UNIFORM_INTEGER_MAX);
NS_TEST_ASSERT_MSG_GT (intValue + intValue2, 0, "Uniform RV GetInteger boundary testing");
}