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dim32_test.go
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package floats
import (
"math"
"testing"
)
func TestFloat32_Dim(t *testing.T) {
tests := []struct {
a Float32
b Float32
want Float32
}{
{exact32(5.0), exact32(3.0), exact32(2.0)},
{exact32(3.0), exact32(5.0), exact32(0.0)},
{exact32(3.0), exact32(3.0), exact32(0.0)},
// Special cases
{exact32(math.Inf(1)), exact32(math.Inf(1)), exact32(math.NaN())},
{exact32(math.Inf(-1)), exact32(math.Inf(-1)), exact32(math.NaN())},
{exact32(math.NaN()), exact32(1.0), exact32(math.NaN())},
{exact32(1.0), exact32(math.NaN()), exact32(math.NaN())},
}
for _, tt := range tests {
got := tt.a.Dim(tt.b)
if !eq32(got, tt.want) {
t.Errorf("Float32.Dim(%v, %v) = %v; want %v", tt.a, tt.b, got, tt.want)
}
}
}
func TestFloat32_Max(t *testing.T) {
tests := []struct {
a Float32
b Float32
want Float32
}{
{exact32(5.0), exact32(3.0), exact32(5.0)},
{exact32(3.0), exact32(5.0), exact32(5.0)},
{exact32(3.0), exact32(3.0), exact32(3.0)},
// Special cases
{exact32(1), exact32(math.Inf(1)), exact32(math.Inf(1))},
{exact32(math.Inf(1)), exact32(1), exact32(math.Inf(1))},
{exact32(math.NaN()), exact32(1), exact32(math.NaN())},
{exact32(1), exact32(math.NaN()), exact32(math.NaN())},
{exact32(0), exact32(math.Copysign(0, -1)), exact32(0)},
{exact32(math.Copysign(0, -1)), exact32(0), exact32(0)},
{exact32(math.Copysign(0, -1)), exact32(math.Copysign(0, -1)), exact32(math.Copysign(0, -1))},
}
for _, tt := range tests {
got := tt.a.Max(tt.b)
if !eq32(got, tt.want) {
t.Errorf("Float32.Max(%v, %v) = %v; want %v", tt.a, tt.b, got, tt.want)
}
}
}
func TestFloat32_Min(t *testing.T) {
tests := []struct {
a Float32
b Float32
want Float32
}{
{exact32(5.0), exact32(3.0), exact32(3.0)},
{exact32(3.0), exact32(5.0), exact32(3.0)},
{exact32(3.0), exact32(3.0), exact32(3.0)},
// Special cases
{exact32(1), exact32(math.Inf(-1)), exact32(math.Inf(-1))},
{exact32(math.Inf(-1)), exact32(1), exact32(math.Inf(-1))},
{exact32(math.NaN()), exact32(1), exact32(math.NaN())},
{exact32(1), exact32(math.NaN()), exact32(math.NaN())},
{exact32(0), exact32(math.Copysign(0, -1)), exact32(math.Copysign(0, -1))},
{exact32(math.Copysign(0, -1)), exact32(0), exact32(math.Copysign(0, -1))},
{exact32(math.Copysign(0, -1)), exact32(math.Copysign(0, -1)), exact32(math.Copysign(0, -1))},
}
for _, tt := range tests {
got := tt.a.Min(tt.b)
if !eq32(got, tt.want) {
t.Errorf("Float32.Min(%v, %v) = %v; want %v", tt.a, tt.b, got, tt.want)
}
}
}