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test/test_pcm: add unit test for pcm_mix()

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This commit is contained in:
Max Kellermann
2013-02-01 15:52:03 +01:00
parent ef99d6ce3d
commit a7a10d03c9
5 changed files with 119 additions and 0 deletions
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17
test/test_pcm_util.hxx
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@@ -51,6 +51,7 @@ template<typename T, size_t N>
class TestDataBuffer : std::array<T, N> {
public:
using typename std::array<T, N>::const_pointer;
using std::array<T, N>::size;
using std::array<T, N>::begin;
using std::array<T, N>::end;
using std::array<T, N>::operator[];
@@ -66,3 +67,19 @@ public:
return begin();
}
};
template<typename T>
bool
AssertEqualWithTolerance(const T &a, const T &b, unsigned tolerance)
{
g_assert_cmpint(a.size(), ==, b.size());
for (unsigned i = 0; i < a.size(); ++i) {
int64_t x = a[i], y = b[i];
g_assert_cmpint(x, >=, y - int64_t(tolerance));
g_assert_cmpint(x, <=, y + int64_t(tolerance));
}
return true;
}