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Adding unit tests for constrain wih negative values since the constrain 

method takes signed arguments.
This commit is contained in:
Dominic Clifton 2015-01-25 01:24:57 +01:00
parent 5f51f1a459
commit c93f0a71e1
1 changed files with 22 additions and 5 deletions
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27
src/test/unit/maths_unittest.cc
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@ -31,7 +31,9 @@ extern "C" {
TEST(MathsUnittest, TestConstrain) TEST(MathsUnittest, TestConstrain)
{ {
// Within bounds. // Within bounds
EXPECT_EQ(constrain(0, 0, 0), 0);
EXPECT_EQ(constrain(1, 1, 1), 1);
EXPECT_EQ(constrain(1, 0, 2), 1); EXPECT_EQ(constrain(1, 0, 2), 1);
// Equal to bottom bound. // Equal to bottom bound.
@ -46,11 +48,26 @@ TEST(MathsUnittest, TestConstrain)
EXPECT_EQ(constrain(2, 0, 1), 1); EXPECT_EQ(constrain(2, 0, 1), 1);
// Below bottom bound. // Below bottom bound.
EXPECT_EQ(constrain(0, 1, 2), 1); EXPECT_EQ(constrain(0, 1, 2), 1);
}
// Above bouth bounds. TEST(MathsUnittest, TestConstrainNegatives)
EXPECT_EQ(constrain(2, 0, 1), 1); {
// Below bouth bounds. // Within bounds.
EXPECT_EQ(constrain(0, 1, 2), 1); EXPECT_EQ(constrain(-1, -1, -1), -1);
EXPECT_EQ(constrain(-1, -2, 0), -1);
// Equal to bottom bound.
EXPECT_EQ(constrain(-1, -1, 0), -1);
// Equal to top bound.
EXPECT_EQ(constrain(-1, -2, -1), -1);
// Equal to both bottom and top bound.
EXPECT_EQ(constrain(-1, -1, -1), -1);
// Above top bound.
EXPECT_EQ(constrain(-1, -3, -2), -2);
// Below bottom bound.
EXPECT_EQ(constrain(-3, -2, -1), -2);
} }
TEST(MathsUnittest, TestConstrainf) TEST(MathsUnittest, TestConstrainf)