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Diffstat (limited to 'decoder/logval_test.cc')
-rw-r--r-- | decoder/logval_test.cc | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/decoder/logval_test.cc b/decoder/logval_test.cc new file mode 100644 index 00000000..1a23177d --- /dev/null +++ b/decoder/logval_test.cc @@ -0,0 +1,73 @@ +#include "logval.h" + +#include <gtest/gtest.h> +#include <iostream> + +class LogValTest : public testing::Test { + protected: + virtual void SetUp() { } + virtual void TearDown() { } +}; + +using namespace std; + +TEST_F(LogValTest,Order) { + LogVal<double> a(-0.3); + LogVal<double> b(0.3); + LogVal<double> c(2.4); + EXPECT_LT(a,b); + EXPECT_LT(b,c); + EXPECT_LT(a,c); + EXPECT_FALSE(b < a); + EXPECT_FALSE(c < a); + EXPECT_FALSE(c < b); + EXPECT_FALSE(c < c); + EXPECT_FALSE(b < b); + EXPECT_FALSE(a < a); +} + +TEST_F(LogValTest,Invert) { + LogVal<double> x(-2.4); + LogVal<double> y(2.4); + y.invert(); + EXPECT_FLOAT_EQ(x,y); +} + +TEST_F(LogValTest,Minus) { + LogVal<double> x(12); + LogVal<double> y(2); + LogVal<double> z1 = x - y; + LogVal<double> z2 = x; + z2 -= y; + EXPECT_FLOAT_EQ(z1, z2); + EXPECT_FLOAT_EQ(z1, 10.0); + EXPECT_FLOAT_EQ(y - x, -10.0); +} + +TEST_F(LogValTest,TestOps) { + LogVal<double> x(-12.12); + LogVal<double> y(x); + cerr << x << endl; + cerr << (x*y) << endl; + cerr << (x*y + x) << endl; + cerr << (x + x*y) << endl; + cerr << log1p(-0.5) << endl; + LogVal<double> aa(0.2); + LogVal<double> bb(-0.3); + cerr << (aa + bb) << endl; + cerr << (bb + aa) << endl; + EXPECT_FLOAT_EQ((aa + bb), (bb + aa)); + EXPECT_FLOAT_EQ((aa + bb), -0.1); +} + +TEST_F(LogValTest,TestSizes) { + cerr << sizeof(LogVal<double>) << endl; + cerr << sizeof(LogVal<float>) << endl; + cerr << sizeof(void*) << endl; +} + +int main(int argc, char** argv) { + testing::InitGoogleTest(&argc, argv); + return RUN_ALL_TESTS(); +} + |