add tests for debug macros

Author: jonaspleyer

approx/tests/abs_diff_eq.rs

@@ -681,3 +681,18 @@ mod test_indexmap {
         );
     }
 }
+
+#[test]
+fn test_debug_abs_diff() {
+    let x = 1.0;
+    let y = if cfg!(debug_assertions) { 1.1 } else { 2.0 };
+    assert!(debug_abs_diff_eq!(x, y, epsilon = 0.15));
+    debug_assert_abs_diff_eq!(x, y, epsilon = 0.15);
+
+    let x = 50798.34f32;
+    let y = 29580.13f32;
+    let epsilon = if cfg!(debug_assertions) { 0.0 } else { 2.2e4 };
+
+    assert!(debug_abs_diff_ne!(x, y, epsilon = epsilon));
+    debug_assert_abs_diff_ne!(x, y, epsilon = epsilon);
+}

approx/tests/relative_eq.rs

@@ -703,3 +703,19 @@ mod test_indexmap {
         );
     }
 }
+
+#[test]
+fn test_debug_relative_diff() {
+    let x = 10.0;
+    let y = if cfg!(debug_assertions) { 11.1 } else { 2.0 };
+
+    debug_assert_relative_eq!(x, y, max_relative = 0.15);
+    assert!(debug_relative_eq!(x, y, max_relative = 0.15));
+
+    let x = 249587e-3;
+    let y = 248938e-3;
+    let max_relative = if cfg!(debug_assertions) { 0.0 } else { 1.0 };
+
+    debug_assert_relative_ne!(x, y, max_relative = max_relative);
+    assert!(debug_relative_ne!(x, y, max_relative = max_relative));
+}

approx/tests/ulps_eq.rs

@@ -658,3 +658,20 @@ mod test_indexmap {
         );
     }
 }
+
+#[test]
+fn test_debug_ulps_diff() {
+    let x = 83055.0;
+    let y = 83055.2;
+    let m = if cfg!(debug_assertions) { 3 } else { 0 };
+
+    debug_assert_ulps_ne!(x, y, max_ulps = m);
+    assert!(debug_ulps_ne!(x, y, max_ulps = m));
+
+    let x = 50798.34f32;
+    let y = 50798.13f32;
+    let m = if cfg!(debug_assertions) { 55 } else { 0 };
+
+    assert!(debug_ulps_eq!(x, y, max_ulps = m));
+    debug_assert_ulps_eq!(x, y, max_ulps = m);
+}