test/java/util/Formatter/BasicFloatObject.java

rev 7490 : 6469160: (fmt) general (%g) formatting of zero (0.0) with precision 0 or 1 throws ArrayOutOfBoundsException
Summary: For zero value ensure than an unpadded zero character is passed to Formatter.addZeros()
Reviewed-by: TBD
Contributed-by: Brian Burkhalter <brian.burkhalter@oracle.com>

@@ -1137,10 +1137,19 @@
 
 
 
 
 
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         //---------------------------------------------------------------------
         // %g
         //
         // Floating-point conversions applicable to float, double, and
         // BigDecimal.

@@ -1166,10 +1175,17 @@
         test("%.0g", "-1e-05", recip(create(-100000.0)));
         test("%.0g", "1e+05", create(100000.0));
         test("%.3G", "1.00E-05", recip(create(100000.0)));
         test("%.3G", "-1.00E-05", recip(create(-100000.0)));
 
+        test("%.1g", "-0", -0.0);
+        test("%3.0g", " -0", -0.0);
+        test("%.1g", "0", 0.0);
+        test("%3.0g", "  0", 0.0);
+        test("%.1g", "0", +0.0);
+        test("%3.0g", "  0", +0.0);
+
         test("%3.0g", "1e-06", 0.000001);
         test("%3.0g", "1e-05", 0.00001);
         test("%3.0g", "1e-05", 0.0000099);
         test("%3.1g", "1e-05", 0.0000099);
         test("%3.2g", "9.9e-06", 0.0000099);