test/java/time/test/java/time/format/TestNonIsoFormatter.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2019, 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.

@@ -18,10 +18,17 @@
  *
  * 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 8206120
+ */
+
 package test.java.time.format;
 
 import static org.testng.Assert.assertEquals;
 
 import java.time.LocalDate;

@@ -35,10 +42,11 @@
 import java.time.format.DecimalStyle;
 import java.time.format.DateTimeFormatter;
 import java.time.format.DateTimeFormatterBuilder;
 import java.time.format.DateTimeParseException;
 import java.time.format.FormatStyle;
+import java.time.format.ResolverStyle;
 import java.time.format.TextStyle;
 import java.time.temporal.TemporalAccessor;
 import java.time.temporal.TemporalQueries;
 import java.util.Locale;
 

@@ -126,10 +134,20 @@
                                 + "\u0627\u0644\u0647\u062c\u0631\u064a\u060c "
                                 + "\u0623\u0645 \u0627\u0644\u0642\u0631\u0649" }, // JDK-8015986
         };
     }
 
+    @DataProvider(name="lenient_eraYear")
+    Object[][] lenientEraYear() {
+        return new Object[][] {
+            // Chronology, lenient era/year, strict era/year
+            { JAPANESE, "Meiji 123", "Heisei 2" },
+            { JAPANESE, "Showa 65", "Heisei 2" },
+            { JAPANESE, "Heisei 32", "NewEra 2" }, // NewEra
+        };
+    }
+    
     @Test(dataProvider="format_data")
     public void test_formatLocalizedDate(Chronology chrono, Locale formatLocale, Locale numberingLocale,
                                          ChronoLocalDate date, String expected) {
         DateTimeFormatter dtf = DateTimeFormatter.ofLocalizedDate(FormatStyle.FULL)
             .withChronology(chrono).withLocale(formatLocale)

@@ -164,6 +182,17 @@
         assertEquals(text, expected);
         TemporalAccessor ta = dtf.parse(text);
         Chronology cal = ta.query(TemporalQueries.chronology());
         assertEquals(cal, chrono);
     }
+
+    @Test(dataProvider="lenient_eraYear")
+    public void test_lenientEraYear(Chronology chrono, String lenient, String strict) {
+        String mdStr = "-01-01";
+        DateTimeFormatter dtf = new DateTimeFormatterBuilder()
+            .appendPattern("GGGG y-M-d")
+            .toFormatter()
+            .withChronology(chrono);
+        DateTimeFormatter dtfLenient = dtf.withResolverStyle(ResolverStyle.LENIENT);
+        assertEquals(LocalDate.parse(lenient+mdStr, dtfLenient), LocalDate.parse(strict+mdStr, dtf));
+}
 }