float tests

fixed_wide/src/tests.rs

@@ -4,13 +4,43 @@ use crate::types::I256F256;
 #[test]
 fn you_can_add_numbers(){
 	let a=I256F256::from((3i128*2).pow(4));
-	assert_eq!(a+a,I256F256::from((3i128*2).pow(4)*2))
+	assert_eq!(a+a,I256F256::from((3i128*2).pow(4)*2));
+}
+
+#[test]
+fn to_f32(){
+	let a=I256F256::from(1)>>2;
+	let f:f32=a.into();
+	assert_eq!(f,0.25f32);
+	let f:f32=(-a).into();
+	assert_eq!(f,-0.25f32);
+	let a=I256F256::from(0);
+	let f:f32=(-a).into();
+	assert_eq!(f,0f32);
+	let a=I256F256::from(237946589723468975i64)<<32;
+	let f:f32=a.into();
+	assert_eq!(f,237946589723468975f32*2.0f32.powi(32));
+}
+
+#[test]
+fn to_f64(){
+	let a=I256F256::from(1)>>2;
+	let f:f64=a.into();
+	assert_eq!(f,0.25f64);
+	let f:f64=(-a).into();
+	assert_eq!(f,-0.25f64);
+	let a=I256F256::from(0);
+	let f:f64=(-a).into();
+	assert_eq!(f,0f64);
+	let a=I256F256::from(237946589723468975i64)<<32;
+	let f:f64=a.into();
+	assert_eq!(f,237946589723468975f64*2.0f64.powi(32));
 }
 
 #[test]
 fn you_can_shr_numbers(){
 	let a=I32F32::from(4);
-	assert_eq!(a>>1,I32F32::from(2))
+	assert_eq!(a>>1,I32F32::from(2));
 }
 
 #[test]