@Test
public void testProperties() {
Field f = Data.makeColumnField("a", "label", new Object[0]);
assertEquals(null, f.property("xyz"));
f.set("xyz", "12");
assertEquals("12", f.stringProperty("xyz"));
assertEquals(12.00001, f.numericProperty("xyz"), 0.001);
f.set("abc", false);
assertEquals(Boolean.FALSE, f.property("abc"));
f.set("abc", true);
assertEquals(Boolean.TRUE, f.property("abc"));
}
@Test
public void testBasicFieldStats() {
Field f = Data.makeColumnField("a", "label", new Object[] {"1", "2", "a", "2", null, 0});
Field g = Data.makeColumnField("a", "label", new Object[] {100, 200, 400, 500, 600});
Field h = Data.makeColumnField("a", "label", new Object[] {"a", "b", "c", "c"});
Field i = Data.makeIndexingField("a", "label", 20);
Field c = Data.makeConstantField("a", "label", 5.0, 2000);
assertEquals(0, f.min(), 0.01);
assertEquals(2, f.max(), 0.01);
assertEquals(100, g.min(), 0.01);
assertEquals(600, g.max(), 0.01);
assertEquals(null, h.min());
assertEquals(null, h.max());
assertEquals(1, i.min(), 0.01);
assertEquals(20, i.max(), 0.01);
assertEquals(5.0, c.min(), 0.01);
assertEquals(5.0, c.max(), 0.01);
int[] counts = (int[]) h.property("categoryCounts");
Assert.assertEquals(1, counts[0]);
Assert.assertEquals(1, counts[1]);
Assert.assertEquals(2, counts[2]);
assertEquals(4, f.uniqueValuesCount());
assertEquals(5, g.uniqueValuesCount());
assertEquals(3, h.uniqueValuesCount());
assertEquals(20, i.uniqueValuesCount());
assertEquals(1, c.uniqueValuesCount());
}
@Test
public void testDate() {
Field a;
a =
Data.toDate(
Data.makeColumnField(
"a", "label", new Object[] {"January 1, 1970", "January 1, 1970 00:00:01"}));
assertEquals(0.0, a.min(), 1e-9);
assertEquals(1.0 / 3600 / 24, a.max(), 1e-9);
assertEquals(DateUnit.second, a.property("dateUnit"));
a =
Data.toDate(
Data.makeColumnField(
"a", "label", new Object[] {"January 1, 1970", "January 1, 1970 00:04:00"}));
assertEquals(0.0, a.min(), 1e-9);
assertEquals(4.0 / 60 / 24, a.max(), 1e-9);
assertEquals(DateUnit.minute, a.property("dateUnit"));
a =
Data.toDate(
Data.makeColumnField(
"a", "label", new Object[] {"January 1, 1970", "January 1, 1970 00:06:00"}));
assertEquals(0.0, a.min(), 1e-9);
assertEquals(6.0 / 60 / 24, a.max(), 1e-9);
assertEquals(DateUnit.minute, a.property("dateUnit"));
a =
Data.toDate(
Data.makeColumnField(
"a", "label", new Object[] {"January 1, 1970", "January 1, 1970 00:45:00"}));
assertEquals(0.0, a.min(), 1e-9);
assertEquals(45.0 / 60 / 24, a.max(), 1e-9);
assertEquals(DateUnit.minute, a.property("dateUnit"));
a =
Data.toDate(
Data.makeColumnField(
"a", "label", new Object[] {"January 1, 1970", "January 1, 1970 04:59:00"}));
assertEquals(0.0, a.min(), 1e-9);
assertEquals(DateUnit.hour, a.property("dateUnit"));
a =
Data.toDate(
Data.makeColumnField(
"a", "label", new Object[] {"January 1, 1970", "January 1, 1970 05:00:00"}));
assertEquals(0.0, a.min(), 1e-9);
assertEquals(5.0 / 24, a.max(), 1e-9);
assertEquals(DateUnit.hour, a.property("dateUnit"));
a =
Data.toDate(
Data.makeColumnField(
"a", "label", new Object[] {"January 1, 1970", "January 4, 1970"}));
assertEquals(0.0, a.min(), 1e-9);
assertEquals(3.0, a.max(), 1e-9);
assertEquals(DateUnit.day, a.property("dateUnit"));
// Note that only three days are needed to get days as a unit -- this an exception to the usual
// "5 ticks" rule
a =
Data.toDate(
Data.makeColumnField(
"a", "label", new Object[] {"January 10, 1970", "January 2, 1970"}));
assertEquals(1.0, a.min(), 1e-9);
assertEquals(9.0, a.max(), 1e-9);
assertEquals(DateUnit.day, a.property("dateUnit"));
a =
Data.toDate(
Data.makeColumnField("a", "label", new Object[] {"January 10, 1970", "March 2, 1970"}));
assertEquals(9.0, a.min(), 1e-9);
assertEquals(60.0, a.max(), 1e-9);
assertEquals(DateUnit.week, a.property("dateUnit"));
a =
Data.toDate(
Data.makeColumnField(
"a", "label", new Object[] {"January 10, 1970", "December 31, 1970"}));
assertEquals(9.0, a.min(), 1e-9);
assertEquals(364.0, a.max(), 1e-9);
assertEquals(DateUnit.quarter, a.property("dateUnit"));
a =
Data.toDate(
Data.makeColumnField(
"a", "label", new Object[] {"January 10, 1970", "January 10, 1972"}));
assertEquals(9.0, a.min(), 1e-9);
assertEquals(2 * 365 + 9, a.max(), 1e-9);
assertEquals(DateUnit.quarter, a.property("dateUnit"));
a =
Data.toDate(
Data.makeColumnField(
"a", "label", new Object[] {"January 10, 1970", "January 10, 1974"}));
assertEquals(9.0, a.min(), 1e-9);
assertEquals(4 * 365 + 1 + 9, a.max(), 1e-9);
assertEquals(DateUnit.year, a.property("dateUnit"));
a =
Data.toDate(
Data.makeColumnField(
"a", "label", new Object[] {"January 10, 1970", "January 10, 1976"}));
assertEquals(9.0, a.min(), 1e-9);
assertEquals(6 * 365 + 1 + 9, a.max(), 1e-9);
assertEquals(DateUnit.year, a.property("dateUnit"));
a =
Data.toDate(
Data.makeColumnField(
"a", "label", new Object[] {"January 10, 1970", "January 10, 2030"}));
assertEquals(9.0, a.min(), 1e-9);
assertEquals(60 * 365 + 15 + 9, a.max(), 1e-9);
assertEquals(DateUnit.decade, a.property("dateUnit"));
a =
Data.toDate(
Data.toDate(
Data.makeColumnField("a", "label", new Object[] {"09:45:22", "09:45:24"}), null));
assertEquals((9 + 45 / 60.0 + 22 / 3600.0) / 24.0, a.min(), 1e-9);
assertEquals((9 + 45 / 60.0 + 24 / 3600.0) / 24.0, a.max(), 1e-9);
assertEquals(DateUnit.second, a.property("dateUnit"));
}