import gx fn test_hex() { // valid colors a := gx.hex(0x6c5ce7ff) b := gx.rgba(108, 92, 231, 255) assert a.eq(b) // doesn't give right value with short hex value short := gx.hex(0xfff) assert !short.eq(gx.white) } fn test_add() { a := gx.rgba(100, 100, 100, 100) b := gx.rgba(100, 100, 100, 100) r := gx.rgba(200, 200, 200, 200) assert (a + b).eq(r) } fn test_sub() { a := gx.rgba(100, 100, 100, 100) b := gx.rgba(100, 100, 100, 100) r := gx.rgba(0, 0, 0, 0) assert (a - b).eq(r) } fn test_mult() { a := gx.rgba(10, 10, 10, 10) b := gx.rgba(10, 10, 10, 10) r := gx.rgba(100, 100, 100, 100) assert (a * b).eq(r) } fn test_div() { a := gx.rgba(100, 100, 100, 100) b := gx.rgba(10, 10, 10, 10) r := gx.rgba(10, 10, 10, 10) assert (a / b).eq(r) }