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UnitTest: added method expectWithinAbsoluteError for floating point comparisons.

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This commit is contained in:
Timur Doumler 2016-05-31 10:57:59 +01:00
parent 74554a206c
commit b4e1e68869
1 changed files with 21 additions and 0 deletions
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21
modules/juce_core/unit_tests/juce_UnitTest.h
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@ -157,6 +157,27 @@ public:
expect (result, failureMessage);
}
/** Computes the difference between two values, and if it is larger than a
specified value, prints out a message containing the expected and actual
difference.
*/
template <class ValueType>
void expectWithinAbsoluteError (ValueType actual, ValueType expected, ValueType maxAbsoluteError, String failureMessage = String())
{
const ValueType diff = std::abs (actual - expected);
const bool result = diff <= maxAbsoluteError;
if (! result)
{
if (failureMessage.isNotEmpty())
failureMessage << " -- ";
failureMessage << "Expected value: " << expected << ", Actual value: " << actual << " Max absolute error: " << maxAbsoluteError << " Actual difference: " << diff;
}
expect (result, failureMessage);
}
//==============================================================================
/** Checks that the result of an expression does not throw an exception. */
#define expectDoesNotThrow(expr) \