[commons-numbers] branch master updated: Additional tests for SafeNorm

[ah...@apache.org]

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aherbert pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/commons-numbers.git


The following commit(s) were added to refs/heads/master by this push:
     new 00a1482  Additional tests for SafeNorm
00a1482 is described below

commit 00a14829720144fd48c97c999fd5bd76298033a9
Author: Alex Herbert <ah...@apache.org>
AuthorDate: Thu May 20 22:32:00 2021 +0100

    Additional tests for SafeNorm
---
 .../apache/commons/numbers/arrays/SafeNormTest.java    | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/commons-numbers-arrays/src/test/java/org/apache/commons/numbers/arrays/SafeNormTest.java b/commons-numbers-arrays/src/test/java/org/apache/commons/numbers/arrays/SafeNormTest.java
index 169c498..de81135 100644
--- a/commons-numbers-arrays/src/test/java/org/apache/commons/numbers/arrays/SafeNormTest.java
+++ b/commons-numbers-arrays/src/test/java/org/apache/commons/numbers/arrays/SafeNormTest.java
@@ -66,6 +66,24 @@ class SafeNormTest {
     }
 
     @Test
+    void testNaN() {
+        final double[] v = new double[] {0, Double.NaN, 0};
+        Assertions.assertEquals(Double.NaN, SafeNorm.value(v));
+    }
+
+    @Test
+    void testInf() {
+        final double[] v = new double[] {0, Double.NEGATIVE_INFINITY, 0};
+        Assertions.assertEquals(Double.POSITIVE_INFINITY, SafeNorm.value(v));
+    }
+
+    @Test
+    void testOverflow() {
+        final double[] v = new double[] {0, Double.MAX_VALUE, Double.MAX_VALUE, 0};
+        Assertions.assertEquals(Double.POSITIVE_INFINITY, SafeNorm.value(v));
+    }
+
+    @Test
     void testTinyAndSmallNormal() {
         // Ensure the sum of the squared values for 'normal' values (1e-19*1e-19)
         // is less than largest tiny value (1e-20)