Add NumberUtils.isParsable(String) assertions

Author: garydgregory

src/test/java/org/apache/commons/lang3/math/NumberUtilsTest.java

@@ -1077,13 +1077,17 @@ void testLang1729IsParsableByte() {
     @Test
     void testLang1729IsParsableDouble() {
         assertTrue(isParsableDouble("1"));
+        assertTrue(isParsableDouble("1.0"));
+        assertFalse(isParsableDouble("1.0."));
         assertFalse(isParsableDouble("1 2 3"));
         assertFalse(isParsableDouble("１ ２ ３"));
     }
 
     @Test
     void testLang1729IsParsableFloat() {
         assertTrue(isParsableFloat("1"));
+        assertTrue(isParsableFloat("1.0"));
+        assertFalse(isParsableFloat("1.0."));
         assertFalse(isParsableFloat("1 2 3"));
         assertFalse(isParsableFloat("１ ２ ３"));
     }