[#2342] Add example

src/test/java/picocli/Issue2342.java

@@ -0,0 +1,74 @@
+package picocli;
+
+import org.junit.Test;
+import picocli.CommandLine.Option;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import static org.junit.Assert.*;
+
+public class Issue2342 {
+    static class CompileOptions {
+        @Option(names = { "--compiler-arguments" }, split = " ", arity = "*",
+            description = "Compiler arguments to use to compile generated sources.")
+        private List<String> compilerArguments;
+    }
+
+    @Test
+    public void testArgsWithSpaces() {
+        CompileOptions co = new CompileOptions();
+        String[] args = new String[] {
+            "--compiler-arguments",
+            "\"--a-param with space\"",
+            "--parameters",
+            "\"--release 21\"",
+            "--nowarn"
+        };
+        new CommandLine(co)
+            .setAllowOptionsAsOptionParameters(true)
+            .parseArgs(args);
+        List<String> expected = new ArrayList<String>(Arrays.asList(args));
+        expected.remove(0);
+        assertEquals(expected, co.compilerArguments);
+    }
+
+    @Test
+    public void testArgsWithSpacesQuotesTrimmed() {
+        CompileOptions co = new CompileOptions();
+        String[] args = new String[] {
+            "--compiler-arguments",
+            "\"--a-param with space\"",
+            "--parameters",
+            "\"--release 21\"",
+            "--nowarn"
+        };
+        new CommandLine(co)
+            .setAllowOptionsAsOptionParameters(true)
+            .setTrimQuotes(true)
+            .parseArgs(args);
+        List<String> expected = Arrays.asList(
+            "--a-param", "with", "space", "--parameters", "--release", "21", "--nowarn");
+        assertEquals(expected, co.compilerArguments);
+    }
+
+    @Test
+    public void testArgsSeparateReleaseFrom21() {
+        CompileOptions co = new CompileOptions();
+        String[] args = new String[] {
+            "--compiler-arguments",
+            "\"--a-param with space\"",
+            "--parameters",
+            "--release",
+            "21",
+            "--nowarn"
+        };
+        new CommandLine(co)
+            .setAllowOptionsAsOptionParameters(true)
+            .parseArgs(args);
+        List<String> expected = new ArrayList<String>(Arrays.asList(args));
+        expected.remove(0);
+        assertEquals(expected, co.compilerArguments);
+    }
+}