add tests for abs() on floats

tests/internal/test_abs.odin

@@ -0,0 +1,56 @@
+package test_internal
+
+import "core:testing"
+
+@(test)
+test_abs_float :: proc(t: ^testing.T) {
+	not_const :: proc(v: $T) -> T { return v }
+
+	// Constant f16
+	testing.expect_value(t, abs(f16(0.)), 0.)
+	testing.expect_value(t, abs(f16(-0.)), 0.)
+	testing.expect_value(t, abs(f16(-1.)), 1.)
+	testing.expect_value(t, abs(min(f16)), max(f16))
+	testing.expect_value(t, abs(max(f16)), max(f16))
+	testing.expect_value(t, abs(f16(-.12345)), .12345)
+
+	// Variable f16
+	testing.expect_value(t, abs(not_const(f16(0.))), 0.)
+	testing.expect_value(t, abs(not_const(f16(-0.))), 0.)
+	testing.expect_value(t, abs(not_const(f16(-1.))), 1.)
+	testing.expect_value(t, abs(not_const(min(f16))), max(f16))
+	testing.expect_value(t, abs(not_const(max(f16))), max(f16))
+	testing.expect_value(t, abs(not_const(f16(-.12345))), .12345)
+
+	// Constant f32
+	testing.expect_value(t, abs(f32(0.)), 0.)
+	testing.expect_value(t, abs(f32(-0.)), 0.)
+	testing.expect_value(t, abs(f32(-1.)), 1.)
+	testing.expect_value(t, abs(min(f32)), max(f32))
+	testing.expect_value(t, abs(max(f32)), max(f32))
+	testing.expect_value(t, abs(f32(-.12345)), .12345)
+
+	// Variable f32
+	testing.expect_value(t, abs(not_const(f32(0.))), 0.)
+	testing.expect_value(t, abs(not_const(f32(-0.))), 0.)
+	testing.expect_value(t, abs(not_const(f32(-1.))), 1.)
+	testing.expect_value(t, abs(not_const(min(f32))), max(f32))
+	testing.expect_value(t, abs(not_const(max(f32))), max(f32))
+	testing.expect_value(t, abs(not_const(f32(-.12345))), .12345)
+
+	// Constant f64
+	testing.expect_value(t, abs(f64(0.)), 0.)
+	testing.expect_value(t, abs(f64(-0.)), 0.)
+	testing.expect_value(t, abs(f64(-1.)), 1.)
+	testing.expect_value(t, abs(min(f64)), max(f64))
+	testing.expect_value(t, abs(max(f64)), max(f64))
+	testing.expect_value(t, abs(f64(-.12345)), .12345)
+
+	// Variable f64
+	testing.expect_value(t, abs(not_const(f64(0.))), 0.)
+	testing.expect_value(t, abs(not_const(f64(-0.))), 0.)
+	testing.expect_value(t, abs(not_const(f64(-1.))), 1.)
+	testing.expect_value(t, abs(not_const(min(f64))), max(f64))
+	testing.expect_value(t, abs(not_const(max(f64))), max(f64))
+	testing.expect_value(t, abs(not_const(f64(-.12345))), .12345)
+}