113 doTest(fmt, randomDouble(1e-50));
114 doTest(fmt, randomDouble(1e100));
115 // The use of double d such that isInfinite(100d) causes the
116 // numeric test to fail with percent formats (bug 4266589).
117 // Largest double s.t. 100d < Inf: d=1.7976931348623156E306
118 doTest(fmt, randomDouble(1e306));
119 doTest(fmt, randomDouble(1e-323));
120 doTest(fmt, randomDouble(1e-100));
121 }
122 }
123
124 /**
125 * Return a random value from -range..+range.
126 */
127 public double randomDouble(double range) {
128 double a = Math.random();
129 return (2.0 * range * a) - range;
130 }
131
132 public void doTest(NumberFormat fmt, double value) {
133 doTest(fmt, new Double(value));
134 }
135
136 public void doTest(NumberFormat fmt, long value) {
137 doTest(fmt, new Long(value));
138 }
139
140 static double proportionalError(Number a, Number b) {
141 double aa = a.doubleValue(), bb = b.doubleValue();
142 double error = aa - bb;
143 if (aa != 0 && bb != 0) error /= aa;
144 return Math.abs(error);
145 }
146
147 public void doTest(NumberFormat fmt, Number value) {
148 fmt.setMaximumFractionDigits(Integer.MAX_VALUE);
149 String s = fmt.format(value), s2 = null;
150 Number n = null;
151 String err = "";
152 try {
153 if (DEBUG) logln(" " + value + " F> " + escape(s));
154 n = fmt.parse(s);
155 if (DEBUG) logln(" " + escape(s) + " P> " + n);
156 s2 = fmt.format(n);
157 if (DEBUG) logln(" " + n + " F> " + escape(s2));
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113 doTest(fmt, randomDouble(1e-50));
114 doTest(fmt, randomDouble(1e100));
115 // The use of double d such that isInfinite(100d) causes the
116 // numeric test to fail with percent formats (bug 4266589).
117 // Largest double s.t. 100d < Inf: d=1.7976931348623156E306
118 doTest(fmt, randomDouble(1e306));
119 doTest(fmt, randomDouble(1e-323));
120 doTest(fmt, randomDouble(1e-100));
121 }
122 }
123
124 /**
125 * Return a random value from -range..+range.
126 */
127 public double randomDouble(double range) {
128 double a = Math.random();
129 return (2.0 * range * a) - range;
130 }
131
132 public void doTest(NumberFormat fmt, double value) {
133 doTest(fmt, Double.valueOf(value));
134 }
135
136 public void doTest(NumberFormat fmt, long value) {
137 doTest(fmt, Long.valueOf(value));
138 }
139
140 static double proportionalError(Number a, Number b) {
141 double aa = a.doubleValue(), bb = b.doubleValue();
142 double error = aa - bb;
143 if (aa != 0 && bb != 0) error /= aa;
144 return Math.abs(error);
145 }
146
147 public void doTest(NumberFormat fmt, Number value) {
148 fmt.setMaximumFractionDigits(Integer.MAX_VALUE);
149 String s = fmt.format(value), s2 = null;
150 Number n = null;
151 String err = "";
152 try {
153 if (DEBUG) logln(" " + value + " F> " + escape(s));
154 n = fmt.parse(s);
155 if (DEBUG) logln(" " + escape(s) + " P> " + n);
156 s2 = fmt.format(n);
157 if (DEBUG) logln(" " + n + " F> " + escape(s2));
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