@Test
public void testRepresentations() {
Range a = Range.make((double) 0, (double) 4, null);
assertEquals("0\u20264", a.toString());
assertEquals(2, Data.asNumeric(a), 0.01);
double low = -200.5;
double high = -100;
Range b = Range.make(low, high, null);
assertEquals("-200.5\u2026-100", b.toString());
assertEquals(-150.25, Data.asNumeric(b), 0.01);
assertNotEquals(a.hashCode(), b.hashCode());
}
@Test
public void testConversions() {
assertEquals(1.0, Data.asNumeric(1), 0.01);
assertEquals(1.0, Data.asNumeric(1.0), 0.01);
assertEquals(1.0, Data.asNumeric("1"), 0.01);
assertEquals(null, Data.asNumeric("foo"));
assertEquals(null, Data.asNumeric(null));
assertEquals(null, Data.asNumeric("NaN"));
assertEquals(null, Data.asNumeric("Inf"));
assertEquals(null, Data.asNumeric("1/8/70"));
assertEquals(null, Data.asNumeric("abc -1 ddd"));
}
public String format(Object v) {
if (v == null) return "?";
if (v instanceof Range) return v.toString();
if (isDate()) return ((DateFormat) property("dateFormat")).format(Data.asDate(v));
if ("percent".equals(property("summary"))) {
// Show one decimal place at most
Double d = Data.asNumeric(v);
if (d == null) return null;
return Data.formatNumeric(Math.round(d * 10) / 10.0, false) + "%";
}
if (isNumeric()) {
Double d = Data.asNumeric(v);
return d == null ? "?" : Data.formatNumeric(d, true);
}
return v.toString();
}
@Test
public void testDates() {
assertEquals(0.0, Data.asNumeric(Data.asDate("1970-01-01")), 0.001);
assertEquals(0.0, Data.asNumeric(Data.asDate("1/1/70")), 0.001);
assertEquals(1.0, Data.asNumeric(Data.asDate("1/2/70")), 0.001);
assertEquals(1.0, Data.asNumeric(Data.asDate("Jan 2 1970")), 0.001);
assertEquals(0.25, Data.asNumeric(Data.asDate("January 1, 1970 6:00:00")), 0.001);
assertEquals(0.125, Data.asNumeric(Data.asDate("January 1, 1970 3:00:00")), 0.001);
assertEquals(1.0 / 3600 / 24, Data.asNumeric(Data.asDate("1970-01-01T00:00:01")), 0.000001);
assertEquals(1.0 / 3600 / 24, Data.asNumeric(Data.asDate("00:00:01")), 0.000001);
assertEquals(
(7 + 45 / 60.0 + 22 / 3600.0) / 24.0, Data.asNumeric(Data.asDate("07:45:22")), 0.000001);
assertEquals(
(10 + 45 / 60.0 + 22 / 3600.0) / 24.0, Data.asNumeric(Data.asDate("10:45:22")), 0.000001);
assertEquals(null, Data.asDate(null));
assertEquals(null, Data.asDate("a"));
assertEquals(null, Data.asDate("Not a date"));
assertEquals(null, Data.asDate("WURGH 53, 2000"));
}