#321 added unit tests for subcommand propagation of the default value…

… provider

src/test/java/picocli/CommandLineDefaultProviderTest.java

@@ -1,6 +1,7 @@
 package picocli;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 
@@ -40,10 +41,30 @@ static class App {
  void setString(String val) { stringForSetterDefault = val; }
  }
 
+ @Command(name = "sub")
+ static class Sub {
+ @Option(names = "-a")
+ private String optionStringFieldWithoutDefaultNorInitialValue;
+ @Option(names = "-b", defaultValue = "Annotated default value")
+ private String optionStringFieldWithAnnotatedDefault;
+ @Option(names = "-c")
+ private String optionStringFieldWithInitDefault = "Initial default value";
+
+ @Parameters(arity = "0..1")
+ private String paramStringFieldWithoutDefaultNorInitialValue;
+ @Parameters(arity = "0..1", defaultValue = "Annotated default value")
+ private String paramStringFieldWithAnnotatedDefault;
+ @Parameters(arity = "0..1")
+ private String paramStringFieldWithInitDefault = "Initial default value";
+
+ private String stringForSetterDefault;
+ @Option(names = "-d", defaultValue = "Annotated setter default value")
+ void setString(String val) { stringForSetterDefault = val; }
+ }
+
 
  @Test
  public void testCommandDefaultProviderByAnnotation() {
-
  CommandLine cmd = new CommandLine(App.class);
  cmd.parse();
 
@@ -60,12 +81,19 @@ public void testCommandDefaultProviderByAnnotation() {
  assertEquals("Initial default value",app.paramStringFieldWithInitDefault);
 
  assertEquals("Annotated setter default value",app.stringForSetterDefault);
-
  }
 
- static class AppWithoutAnnotation {
- @Option(names = "-a")
- private String stringFieldWithoutDefaultNorInitialValue;
+ @Test
+ public void testDefaultProviderPropagatedToSubCommand() {
+ CommandLine cmd = new CommandLine(App.class);
+
+ cmd.addSubcommand("sub", new CommandLine(Sub.class));
+
+ CommandLine subCommandLine = cmd.getSubcommands().get("sub");
+ cmd.setDefaultValueProvider(new TestDefaultProvider());
+
+ assertNotNull(subCommandLine.getCommandSpec().defaultValueProvider());
+ assertEquals(TestDefaultProvider.class, subCommandLine.getCommandSpec().defaultValueProvider().getClass());
  }
 
  @Test