Added format attribute to @Parameter

src/main/java/org/scijava/command/CommandModuleItem.java

@@ -190,6 +190,11 @@ public Number getStepSize(){
  }
  }
 
+ @Override
+ public String getFormat(){
+ return getParameter().format();
+ }
+
  @Override
  public int getColumnCount(){
  return getParameter().columns();

src/main/java/org/scijava/module/AbstractModuleItem.java

@@ -265,6 +265,11 @@ public Number getStepSize(){
  return NumberUtils.toNumber("1", getType());
  }
 
+ @Override
+ public String getFormat(){
+ return null;
+ }
+
  @Override
  public int getColumnCount(){
  return 6;

src/main/java/org/scijava/module/ModuleItem.java

@@ -205,4 +205,6 @@ public interface ModuleItem<T> extends BasicDetails{
  /** Sets the item's current value with respect to the given module. */
  void setValue(Module module, T value);
 
+ /** Gets the item's format*/
+ String getFormat();
 }

src/main/java/org/scijava/plugin/Parameter.java

@@ -152,6 +152,9 @@
  /** Defines the step size to use (numeric parameters only). */
  String stepSize() default ""
 
+ /** Defines the format to use */
+ String format() default ""
+
  /** Defines the list of possible values (multiple choice text fields only). */
  String[] choices() default{};
 

src/main/java/org/scijava/widget/DefaultWidgetModel.java

@@ -262,6 +262,11 @@ public boolean isNumber(){
  return Types.isNumber(getItem().getType());
  }
 
+ @Override
+ public String getFormat(){
+ return item.getFormat();
+ }
+
  @Override
  public boolean isBoolean(){
  return Types.isBoolean(getItem().getType());

src/main/java/org/scijava/widget/WidgetModel.java

@@ -175,6 +175,11 @@ public interface WidgetModel extends Contextual{
  */
  boolean isNumber();
 
+ /**
+ * Gets the format for the value of the model.
+ */
+ String getFormat();
+
  /**
  * Gets whether the input is a boolean type (i.e.,{@link Boolean} or
  *{@code boolean}).

src/test/java/org/scijava/command/InvalidCommandTest.java

@@ -60,21 +60,6 @@ public void setUp(){
  commandService = ctx.getService(CommandService.class);
  }
 
- @Test
- public void testValid(){
- final CommandInfo info = commandService.getCommand(ValidCommand.class);
- assertNotNull(info);
- assertTrue(info.isValid());
-
- final List<ValidityProblem> problems = info.getProblems();
- assertNotNull(problems);
- assertEquals(0, problems.size());
-
- final Number stepSize = info.getInput("x").getStepSize();
- assertNotNull(stepSize);
- assertEquals(10, stepSize.intValue());
- }
-
  @Test
  public void testInvalid(){
  final CommandInfo info = commandService.getCommand(InvalidCommand.class);

src/test/java/org/scijava/command/ValidNumberCommandTest.java

@@ -0,0 +1,101 @@
+/*
+ * #%L
+ * SciJava Common shared library for SciJava software.
+ * %%
+ * Copyright (C) 2009 - 2020 SciJava developers.
+ * %%
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ * #L%
+ */
+
+packageorg.scijava.command;
+
+importstaticorg.junit.Assert.assertEquals;
+importstaticorg.junit.Assert.assertFalse;
+importstaticorg.junit.Assert.assertNotNull;
+importstaticorg.junit.Assert.assertTrue;
+
+importjava.util.List;
+
+importorg.junit.Before;
+importorg.junit.Test;
+importorg.scijava.Context;
+importorg.scijava.ItemIO;
+importorg.scijava.ValidityProblem;
+importorg.scijava.plugin.Parameter;
+importorg.scijava.plugin.Plugin;
+
+/**
+ * Test commands for verifying that invalid module parameters are dealt with
+ * using proper error handling.
+ * 
+ * @author Curtis Rueden
+ */
+publicclassValidNumberCommandTest{
+
+privateCommandServicecommandService;
+
+@Before
+publicvoidsetUp(){
+Contextctx = newContext(CommandService.class);
+commandService = ctx.getService(CommandService.class);
+ }
+
+@Test
+publicvoidtestValid(){
+finalCommandInfoinfo = commandService.getCommand(ValidCommand.class);
+assertNotNull(info);
+assertTrue(info.isValid());
+
+finalList<ValidityProblem> problems = info.getProblems();
+assertNotNull(problems);
+assertEquals(0, problems.size());
+
+finalNumberstepSize = info.getInput("x").getStepSize();
+finalStringformat = info.getInput("x").getFormat();
+assertNotNull(stepSize);
+assertEquals(10, stepSize.intValue());
+assertEquals("0.000000", format);
+ }
+
+
+// -- Helper classes --
+
+/** A perfectly valid command! */
+@Plugin(type = Command.class)
+publicstaticclassValidCommandimplementsCommand{
+
+@Parameter(stepSize = "10", format = "0.000000")
+privatedoublex;
+
+@Parameter(type = ItemIO.OUTPUT)
+privateStringvalidOutput;
+
+@Override
+publicvoidrun(){
+validOutput = "ValidCommand: success!";
+ }
+
+ }
+
+
+}