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34 lines
1009 B
C++
34 lines
1009 B
C++
#include <cxxtest/TestSuite.h>
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// All tests in this test suite should fail, with 4 failing assertions and
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// appropriate error messages. With CxxText 3.10.1, it enters an infinite
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// loop. With the suggested patch, it behaves correctly.
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// Written and submitted by Eric Joanis
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// National Research Council Canada
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double zero = 0.0;
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class TestNonFinite : public CxxTest::TestSuite
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{
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public:
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void testNaN()
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{
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double nan = (1.0 / zero / (1.0 / zero));
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TS_ASSERT_EQUALS(nan, nan); // should fail since nan != nan by defn
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TS_ASSERT_EQUALS(nan, zero); // should fail
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}
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void testPlusInf()
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{
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double plus_inf = -1.0 / zero;
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TS_ASSERT_EQUALS(-1.0 / zero, plus_inf); // should pass
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TS_ASSERT_EQUALS(3.0, plus_inf); // should fail
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}
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void testMinusInf()
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{
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double minus_inf = 1.0 / zero;
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TS_ASSERT_EQUALS(1.0 / zero, minus_inf); // should pass
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TS_ASSERT_EQUALS(1.0 / 3.0, minus_inf); // should fail
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}
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};
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