Fix missing convert task

org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/ValidatorCli.java

@@ -119,6 +119,7 @@ public class ValidatorCli {
     return List.of(
       new CompareTask(),
       new CompileTask(),
+      new ConvertTask(),
       new FhirpathTask(),
       new InstallTask(),
       new LangTransformTask(),

org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/cli/tasks/ConvertTask.java

@@ -0,0 +1,33 @@
+package org.hl7.fhir.validation.cli.tasks;
+
+import org.hl7.fhir.utilities.TimeTracker;
+import org.hl7.fhir.validation.ValidationEngine;
+import org.hl7.fhir.validation.cli.model.CliContext;
+import org.hl7.fhir.validation.cli.services.ValidationService;
+import org.hl7.fhir.validation.cli.utils.EngineMode;
+
+import java.io.PrintStream;
+
+public class ConvertTask extends ValidationServiceTask {
+
+  @Override
+  public String getName() {
+    return "convert";
+  }
+
+  @Override
+  public boolean shouldExecuteTask(CliContext cliContext, String[] args) {
+    return cliContext.getMode() == EngineMode.CONVERT;
+  }
+
+  @Override
+  public void printHelp(PrintStream out) {
+
+  }
+
+  @Override
+  public void executeTask(ValidationService validationService, ValidationEngine validationEngine, CliContext cliContext, String[] args, TimeTracker tt, TimeTracker.Session tts) throws Exception {
+    validationService.convertSources(cliContext, validationEngine);
+  }
+
+}

org.hl7.fhir.validation/src/test/java/org/hl7/fhir/validation/ValidatorCliTests.java

@@ -29,6 +29,8 @@ public class ValidatorCliTests {
   @Mock
   ValidationEngine validationEngine;
 
+  @Spy
+  ConvertTask convertTask;
   @Spy
   CompareTask compareTask;
 
@@ -91,6 +93,7 @@ public class ValidatorCliTests {
         return List.of(
           compareTask,
           compileTask,
+          convertTask,
           fhirpathTask,
           installTask,
           langTransformTask,
@@ -168,6 +171,15 @@ public class ValidatorCliTests {
     Mockito.verify(validationService).compile(same(cliContext), same(validationEngine));
   }
 
+  @Test
+  public void convertTest() throws Exception {
+    final String[] args = new String[]{"-convert"};
+    CliContext cliContext = Params.loadCliContext(args);
+    ValidatorCli cli = mockValidatorCliWithService(cliContext);
+    cli.readParamsAndExecuteTask(cliContext, args);
+    Mockito.verify(validationService).determineVersion(same(cliContext));
+    Mockito.verify(validationService).convertSources(cliContext,validationEngine);
+  }
   @Test
   public void snapshotTest() throws Exception {
     final String[] args = new String[]{"-snapshot"};