[#9][#1021] added tests

Author: remkop

src/test/java/picocli/SubcommandTests.java

@@ -1446,6 +1446,102 @@ class TopLevel {}
         assertTrue(grandChildCount > 0);
     }
 
+    @Test
+    public void testSubcommandsCaseInsensitive_BeforeSubcommandsAdded() {
+        @Command
+        class TopLevel {}
+        CommandLine commandLine = new CommandLine(new TopLevel());
+        assertEquals(false, commandLine.isSubcommandsCaseInsensitive());
+        commandLine.setSubcommandsCaseInsensitive(true);
+        assertEquals(true, commandLine.isSubcommandsCaseInsensitive());
+
+        int childCount = 0;
+        int grandChildCount = 0;
+        commandLine.addSubcommand("main", createNestedCommand());
+        for (CommandLine sub : commandLine.getSubcommands().values()) {
+            childCount++;
+            assertEquals("subcommand added afterwards is not impacted", false, sub.isSubcommandsCaseInsensitive());
+            for (CommandLine subsub : sub.getSubcommands().values()) {
+                grandChildCount++;
+                assertEquals("subcommand added afterwards is not impacted", false, subsub.isSubcommandsCaseInsensitive());
+            }
+        }
+        assertTrue(childCount > 0);
+        assertTrue(grandChildCount > 0);
+    }
+
+    @Test
+    public void testSubcommandsCaseInsensitive_AfterSubcommandsAdded() {
+        @Command
+        class TopLevel {}
+        CommandLine commandLine = new CommandLine(new TopLevel());
+        commandLine.addSubcommand("main", createNestedCommand());
+        assertEquals(false, commandLine.isSubcommandsCaseInsensitive());
+        commandLine.setSubcommandsCaseInsensitive(true);
+        assertEquals(true, commandLine.isSubcommandsCaseInsensitive());
+
+        int childCount = 0;
+        int grandChildCount = 0;
+        for (CommandLine sub : commandLine.getSubcommands().values()) {
+            childCount++;
+            assertEquals("subcommand added before IS impacted", true, sub.isSubcommandsCaseInsensitive());
+            for (CommandLine subsub : sub.getSubcommands().values()) {
+                grandChildCount++;
+                assertEquals("subsubcommand added before IS impacted", true, sub.isSubcommandsCaseInsensitive());
+            }
+        }
+        assertTrue(childCount > 0);
+        assertTrue(grandChildCount > 0);
+    }
+
+    @Test
+    public void testOptionsCaseInsensitive_BeforeSubcommandsAdded() {
+        @Command
+        class TopLevel {}
+        CommandLine commandLine = new CommandLine(new TopLevel());
+        assertEquals(false, commandLine.isOptionsCaseInsensitive());
+        commandLine.setOptionsCaseInsensitive(true);
+        assertEquals(true, commandLine.isOptionsCaseInsensitive());
+
+        int childCount = 0;
+        int grandChildCount = 0;
+        commandLine.addSubcommand("main", createNestedCommand());
+        for (CommandLine sub : commandLine.getSubcommands().values()) {
+            childCount++;
+            assertEquals("subcommand added afterwards is not impacted", false, sub.isOptionsCaseInsensitive());
+            for (CommandLine subsub : sub.getSubcommands().values()) {
+                grandChildCount++;
+                assertEquals("subcommand added afterwards is not impacted", false, subsub.isOptionsCaseInsensitive());
+            }
+        }
+        assertTrue(childCount > 0);
+        assertTrue(grandChildCount > 0);
+    }
+
+    @Test
+    public void testOptionsCaseInsensitive_AfterSubcommandsAdded() {
+        @Command
+        class TopLevel {}
+        CommandLine commandLine = new CommandLine(new TopLevel());
+        commandLine.addSubcommand("main", createNestedCommand());
+        assertEquals(false, commandLine.isOptionsCaseInsensitive());
+        commandLine.setOptionsCaseInsensitive(true);
+        assertEquals(true, commandLine.isOptionsCaseInsensitive());
+
+        int childCount = 0;
+        int grandChildCount = 0;
+        for (CommandLine sub : commandLine.getSubcommands().values()) {
+            childCount++;
+            assertEquals("subcommand added before IS impacted", true, sub.isOptionsCaseInsensitive());
+            for (CommandLine subsub : sub.getSubcommands().values()) {
+                grandChildCount++;
+                assertEquals("subsubcommand added before IS impacted", true, sub.isOptionsCaseInsensitive());
+            }
+        }
+        assertTrue(childCount > 0);
+        assertTrue(grandChildCount > 0);
+    }
+
     @Test
     public void testParserTrimQuotes_BeforeSubcommandsAdded() {
         @Command