Add abs and sign tests

src/funs/test/test_sign.rs

@@ -0,0 +1,35 @@
+use sign::*;
+
+#[test]
+fn test_abs() {
+    assert 0.abs()      == 0;
+    assert 2.abs()      == 2;
+    assert (-2).abs()   == 2;
+    assert abs(&0)      == 0;
+    assert abs(&2)      == 2;
+    assert abs(&-2)     == 2;
+    
+    assert 0.0.abs()    == 0.0;
+    assert 2.5.abs()    == 2.5;
+    assert (-2.5).abs() == 2.5;
+    assert abs(&0.0)    == 0.0;
+    assert abs(&2.5)    == 2.5;
+    assert abs(&-2.5)   == 2.5;
+}
+
+#[test]
+fn test_sign() {
+    assert 0.sign()     == 0;
+    assert 2.sign()     == 1;
+    assert (-2).sign()  == -1;
+    assert sign(&0)     == 0;
+    assert sign(&2)     == 1;
+    assert sign(&-2)    == -1;
+    
+    assert 0.0.sign()   == 0.0;
+    assert 2.5.sign()   == 1.0;
+    assert (-2.5).sign()== -1.0;
+    assert sign(&0.0)   == 0.0;
+    assert sign(&2.5)   == 1.0;
+    assert sign(&-2.5)  == -1.0;
+}

src/lmath.rc

@@ -48,6 +48,7 @@ pub mod funs {
   mod test {
     mod test_boolv;
     mod test_extent;
+    mod test_sign;
     mod test_transform;
   }
 }