methods + tests for Grid.Column (part of #59)

addon/src/main/scala/vaadin/scala/Grid.scala

@@ -49,10 +49,13 @@ object Grid {
 
     val p: com.vaadin.ui.Grid.Column
 
+      def propertyId: Any = p.getColumnProperty
+
       def headerCaption: String = p.getHeaderCaption
+      def headerCaption_=(headerCaption: String): Unit = p.setHeaderCaption(headerCaption)
 
-      def width = p.getWidth
-      def width_=(pixelWidth: Int): Unit = p.setWidth(pixelWidth)
+      def width: Double = p.getWidth
+      def width_=(pixelWidth: Double): Unit = p.setWidth(pixelWidth)
 
       def widthUndefined() = p.setWidthUndefined()
 

addon/src/test/scala/vaadin/scala/tests/GridTests.scala

@@ -79,7 +79,44 @@ class GridTests extends ScaladinTestSuite {
     Mockito.verify(spy).removeColumn("propertyId")
   }
 
+  test("Column.propertyId") {
+    val column = grid.addColumn[String]("myColumn")
 
+    assert("myColumn" == column.propertyId)
+  }
+
+  test("Column.headerCaption") {
+    val column = grid.addColumn[String]("myColumn")
+    assert("My Column" == column.headerCaption)
+
+    column.headerCaption = "Header for Column"
+    assert("Header for Column" == column.headerCaption)
+  }
+
+  test("Column.width") {
+    val column = grid.addColumn[String]("myColumn")
+    assert(-1 == column.width)
+
+    column.width = 25.6
+    assert(25.6 == column.width)
+  }
+
+  test("Column.widthUndefined") {
+    val column = grid.addColumn[String]("myColumn")
+    column.width = 25.6
+
+    column.widthUndefined()
+    assert(-1 == column.width)
+  }
+
+  test("sortable") {
+    val column = grid.addColumn[String]("myColumn")
+
+    assert(column.sortable)
+
+    column.sortable = false
+    assert(!column.sortable)
+  }
 
   // TODO tests for Grid.Column class