test/jdk/java/util/Calendar/FieldStateTest.java
changeset 47216 71c04702a3d5
parent 42159 9ab10842acf7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/util/Calendar/FieldStateTest.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,219 @@
+/*
+ * Copyright (c) 2003, 2016, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 4860664 4916815 4867075
+ * @library /java/text/testlib
+ * @build Koyomi
+ * @run main FieldStateTest
+ * @summary Unit tests for internal fields states.
+ */
+
+import java.util.Date;
+import java.util.Locale;
+import java.util.TimeZone;
+
+import static java.util.Calendar.*;
+
+public class FieldStateTest extends IntlTest {
+
+    public static void main(String[] args) throws Exception {
+        Locale reservedLocale = Locale.getDefault();
+        TimeZone reservedTimeZone = TimeZone.getDefault();
+        try {
+            TimeZone.setDefault(TimeZone.getTimeZone("GMT"));
+            Locale.setDefault(Locale.US);
+
+            new FieldStateTest().run(args);
+        } finally {
+            // restore the reserved locale and time zone
+            Locale.setDefault(reservedLocale);
+            TimeZone.setDefault(reservedTimeZone);
+        }
+    }
+
+    public void TestFieldState() {
+        Koyomi cal = new Koyomi();
+        logln("Right after instantialtion:");
+        if (!cal.checkAllSet()) {
+            errln(cal.getMessage());
+        }
+
+        logln("Set date to 2003/10/31 after the instantiation:");
+        cal.set(2003, OCTOBER, 31);
+        // let cal calculate the time
+        cal.getTime();
+        // At this point, all fields have to be recalculated and
+        // happen to have the set-state from the instantiation. The
+        // three fields should have "externally set" and the rest of
+        // the fields have "computed". But we can't distinguish them
+        // outside the package.
+        if (!cal.checkAllSet()) {
+            errln(cal.getMessage());
+        }
+        // Make sure that the correct date was produced.
+        if (!cal.checkInternalDate(2003, OCTOBER, 31, FRIDAY)) {
+            errln(cal.getMessage());
+        }
+
+        logln("Change to Monday of the week, which is 2003/10/27:");
+        cal.set(DAY_OF_WEEK, MONDAY);
+        cal.getTime();
+        if (!cal.checkDate(2003, OCTOBER, 27)) {
+            errln(cal.getMessage());
+        }
+
+        // The same operation didn't work after calling clear() before
+        // 1.5 because the set-state was just depends on its previous
+        // operations. After the instantiation, all the fields are set
+        // to "computed". But after calling clear(), the state becomes
+        // "unset".
+        logln("Set to 2003/10/31 after clear():");
+        cal.clear();
+        cal.set(2003, OCTOBER, 31);
+        cal.getTime();
+        cal.set(DAY_OF_WEEK, MONDAY);
+        if (!cal.checkDate(2003, OCTOBER, 27, MONDAY)) {
+            errln(cal.getMessage());
+        }
+
+        logln("Set to 2003/10/31 after clear(), then to the 51st week of year (12/19):");
+        cal.clear();
+        cal.set(2003, OCTOBER, 31);
+        cal.getTime();
+        cal.set(WEEK_OF_YEAR, 51);
+        if (!cal.checkFieldValue(WEEK_OF_YEAR, 51)) {
+            errln(cal.getMessage());
+        }
+        if (!cal.checkDate(2003, DECEMBER, 19, FRIDAY)) {
+            errln(cal.getMessage());
+        }
+
+        logln("Set to 2003/10 Mon of 4th week (10/20: 43rd week of year, 293rd day):");
+        cal.clear();
+        cal.set(YEAR, 2003);
+        cal.set(MONTH, OCTOBER);
+        cal.set(DAY_OF_WEEK, MONDAY);
+        cal.set(WEEK_OF_MONTH, 4);
+        cal.getTime();
+        if (!cal.checkFieldValue(DAY_OF_MONTH, 20)) {
+            errln(cal.getMessage());
+        }
+        if (!cal.checkFieldValue(DAY_OF_YEAR, 293)) {
+            errln(cal.getMessage());
+        }
+        if (!cal.checkFieldValue(WEEK_OF_YEAR, 43)) {
+            errln(cal.getMessage());
+        }
+
+        logln("Set to 2003/10 Mon of 43rd week of year (10/20: 4th week of month, 293rd day):");
+        cal.clear();
+        cal.set(YEAR, 2003);
+        cal.set(DAY_OF_WEEK, MONDAY);
+        cal.set(WEEK_OF_YEAR, 43);
+        cal.getTime();
+        if (!cal.checkDate(2003, OCTOBER, 20, MONDAY)) {
+            errln(cal.getMessage());
+        }
+        if (!cal.checkFieldValue(WEEK_OF_MONTH, 4)) {
+            errln(cal.getMessage());
+        }
+        if (!cal.checkFieldValue(DAY_OF_YEAR, 293)) {
+            errln(cal.getMessage());
+        }
+
+        logln("Set day of week to SUNDAY and date to 2003/10/31. "
+                + "Then, getTime and set week of year to 43.");
+
+        @SuppressWarnings("deprecation")
+        Date d = new Date(2003 - 1990, OCTOBER, 31);
+        cal.setTime(d);
+        cal.set(DAY_OF_WEEK, SUNDAY);
+        cal.set(2003, OCTOBER, 31); // 2003/10/31 is Friday.
+        cal.set(ZONE_OFFSET, 0);
+        cal.set(DST_OFFSET, 0);
+
+        // This call should change the day of week to FRIDAY since the
+        // selected field combination should be YEAR, MONTH and
+        // DAY_OF_MONTH. The other calendar fields must be normalized
+        // with the selected date.
+        cal.getTime();
+        cal.set(WEEK_OF_YEAR, 43);
+        if (!cal.checkDate(2003, OCTOBER, 24, FRIDAY)) {
+            errln(cal.getMessage());
+        }
+    }
+
+    /*
+     * 4916815: REGRESSION: Problem with java.util.Calendar VM 1.4.2-b28
+     */
+    public void Test4916815() {
+        logln("Set date to 2003/9/26 (Fri). Roll to Aug and back to Sep. "
+                + "Set dayofweek to Sunday which should be 2003/9/21.");
+        Koyomi cal = new Koyomi();
+        cal.clear();
+        // 2003/9/26 (Fri)
+        cal.set(2003, SEPTEMBER, 26);
+        // Go to August then back to September
+        cal.roll(MONTH, -1);
+        cal.roll(MONTH, +1);
+        Koyomi cal2 = (Koyomi) cal.clone();
+        cal2.getTime();
+        // Sunday of the week should be 2003/9/21.
+        cal2.set(DAY_OF_WEEK, SUNDAY);
+        if (!cal2.checkDate(2003, SEPTEMBER, 21, SUNDAY)) {
+            errln(cal2.getMessage());
+        }
+    }
+
+    /*
+     * 4867075: GregorianCalendar get() calls complete() internally, should getTime() too?
+     */
+    public void Test4867075() {
+        Koyomi cal = new Koyomi(Locale.US);
+        cal.clear();
+        cal.set(YEAR, 2004);
+        cal.set(WEEK_OF_YEAR, 1);
+        checkDate(cal, SUNDAY, 2003, DECEMBER, 28);
+        checkDate(cal, MONDAY, 2003, DECEMBER, 29);
+        checkDate(cal, TUESDAY, 2003, DECEMBER, 30);
+        checkDate(cal, WEDNESDAY, 2003, DECEMBER, 31);
+        checkDate(cal, THURSDAY, 2004, JANUARY, 1);
+        checkDate(cal, FRIDAY, 2004, JANUARY, 2);
+        checkDate(cal, SATURDAY, 2004, JANUARY, 3);
+    }
+
+    private void checkDate(Koyomi cal, int dayOfWeek,
+            int expectedYear, int expectedMonth, int expectedDayOfMonth) {
+        cal.set(DAY_OF_WEEK, dayOfWeek);
+        cal.getTime();
+        if (!cal.checkInternalDate(expectedYear, expectedMonth, expectedDayOfMonth, dayOfWeek)) {
+            errln(cal.getMessage());
+        }
+    }
+
+    static String toHexString(int x) {
+        return Integer.toHexString(x);
+    }
+}