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dim16_test.go
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85 lines (77 loc) · 2.49 KB
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package floats
import (
"math"
"testing"
)
func TestFloat16_Dim(t *testing.T) {
tests := []struct {
a Float16
b Float16
want Float16
}{
{exact16(5.0), exact16(3.0), exact16(2.0)},
{exact16(3.0), exact16(5.0), exact16(0.0)},
{exact16(3.0), exact16(3.0), exact16(0.0)},
// Special cases
{exact16(math.Inf(1)), exact16(math.Inf(1)), exact16(math.NaN())},
{exact16(math.Inf(-1)), exact16(math.Inf(-1)), exact16(math.NaN())},
{exact16(math.NaN()), exact16(1.0), exact16(math.NaN())},
{exact16(1.0), exact16(math.NaN()), exact16(math.NaN())},
}
for _, tt := range tests {
got := tt.a.Dim(tt.b)
if !eq16(got, tt.want) {
t.Errorf("Float16.Dim(%v, %v) = %v; want %v", tt.a, tt.b, got, tt.want)
}
}
}
func TestFloat16_Max(t *testing.T) {
tests := []struct {
a Float16
b Float16
want Float16
}{
{exact16(5.0), exact16(3.0), exact16(5.0)},
{exact16(3.0), exact16(5.0), exact16(5.0)},
{exact16(3.0), exact16(3.0), exact16(3.0)},
// Special cases
{exact16(1), exact16(math.Inf(1)), exact16(math.Inf(1))},
{exact16(math.Inf(1)), exact16(1), exact16(math.Inf(1))},
{exact16(math.NaN()), exact16(1), exact16(math.NaN())},
{exact16(1), exact16(math.NaN()), exact16(math.NaN())},
{exact16(0), exact16(math.Copysign(0, -1)), exact16(0)},
{exact16(math.Copysign(0, -1)), exact16(0), exact16(0)},
{exact16(math.Copysign(0, -1)), exact16(math.Copysign(0, -1)), exact16(math.Copysign(0, -1))},
}
for _, tt := range tests {
got := tt.a.Max(tt.b)
if !eq16(got, tt.want) {
t.Errorf("Float16.Max(%v, %v) = %v; want %v", tt.a, tt.b, got, tt.want)
}
}
}
func TestFloat16_Min(t *testing.T) {
tests := []struct {
a Float16
b Float16
want Float16
}{
{exact16(5.0), exact16(3.0), exact16(3.0)},
{exact16(3.0), exact16(5.0), exact16(3.0)},
{exact16(3.0), exact16(3.0), exact16(3.0)},
// Special cases
{exact16(1), exact16(math.Inf(-1)), exact16(math.Inf(-1))},
{exact16(math.Inf(-1)), exact16(1), exact16(math.Inf(-1))},
{exact16(math.NaN()), exact16(1), exact16(math.NaN())},
{exact16(1), exact16(math.NaN()), exact16(math.NaN())},
{exact16(0), exact16(math.Copysign(0, -1)), exact16(math.Copysign(0, -1))},
{exact16(math.Copysign(0, -1)), exact16(0), exact16(math.Copysign(0, -1))},
{exact16(math.Copysign(0, -1)), exact16(math.Copysign(0, -1)), exact16(math.Copysign(0, -1))},
}
for _, tt := range tests {
got := tt.a.Min(tt.b)
if !eq16(got, tt.want) {
t.Errorf("Float16.Min(%v, %v) = %v; want %v", tt.a, tt.b, got, tt.want)
}
}
}