Merge "Fix CurrencyTest.test_getSymbol for unknown variants"

1 files changed, 35 insertions, 0 deletions

diff --git a/luni/src/test/java/libcore/icu/ICUTest.java b/luni/src/test/java/libcore/icu/ICUTest.java
index be2da25..3fa1f46 100644
--- a/luni/src/test/java/libcore/icu/ICUTest.java
+++ b/luni/src/test/java/libcore/icu/ICUTest.java
@@ -216,4 +216,39 @@ public class ICUTest extends junit.framework.TestCase {
     assertTrue(c.compare("ä", "AF") < 0);
     assertTrue(c.compare("AF", "af") < 0);
   }
+
+  // Test for the behavior of currency symbol lookup when an unrecognized locale has been set as the
+  // default.
+  public void testIcuDefaultAffectsCurrencySymbol() {
+    // A locale that is not going to be recognized by ICU and should fallback to "root" for the
+    // currency symbol.
+    final Locale unrecognizedLocale = new Locale("xy", "KR");
+
+    // A known locale with a relatively stable representation for its currency symbol.
+    final Locale enUsLocale = new Locale("en", "US");
+    final String usDollar = "USD";
+
+    String initialDefaultLocale = ICU.getDefaultLocale();
+    try {
+      // Confirm the "$" symbol for USD in en-US.
+      assertEquals("$", ICU.getCurrencySymbol(enUsLocale, usDollar));
+
+      // Set the default so this will be used as fallback for the unrecognized locale symbol lookup.
+      ICU.setDefaultLocale(enUsLocale.toLanguageTag());
+
+      // Demonstrate the USD symbol is reported as "$" for the unrecognized locale (which is using
+      // the default).
+      assertEquals("$", ICU.getCurrencySymbol(unrecognizedLocale, usDollar));
+
+      // Change the default.
+      ICU.setDefaultLocale(unrecognizedLocale.toLanguageTag());
+
+      String currencySymbolAfterDefaultChange = ICU.getCurrencySymbol(unrecognizedLocale, usDollar);
+      // "$US" is the value from root. With an unrecognized locale argument, and an unrecognized
+      // locale as the default, ICU has returns the value in root.
+      assertEquals("US$", currencySymbolAfterDefaultChange);
+    } finally {
+      ICU.setDefaultLocale(initialDefaultLocale);
+    }
+  }
 }