/** Test that static constraints work */
@SuppressWarnings("rawtypes")
public void testNullableConstraint() throws Exception {
String bookClassSource =
"package org.codehaus.groovy.grails.validation\n"
+ "class Book {\n"
+ " Long id\n"
+ " Long version\n"
+ " String title\n"
+ " String description\n"
+ " Author author\n"
+ " Author assistent\n"
+ " Set chapters\n"
+ " Map remarks\n"
+ " static hasMany = [chapters:Chapter]\n"
+ " static constraints = {\n"
+ " description(nullable: true)\n"
+ " assistent(nullable: true)\n"
+ " }\n"
+ "}\n"
+ "class Author {\n"
+ " Long id\n"
+ " Long version\n"
+ " String name\n"
+ "}\n"
+ "class Chapter {\n"
+ " Long id\n"
+ " Long version\n"
+ " String text\n"
+ "}";
GroovyClassLoader gcl = new GroovyClassLoader();
DefaultGrailsDomainClass bookClass =
new DefaultGrailsDomainClass(gcl.parseClass(bookClassSource, "Book"));
Map constraints = bookClass.getConstrainedProperties();
Constrained p = (Constrained) constraints.get("title");
assertFalse("Title property should be required", p.isNullable());
p = (Constrained) constraints.get("description");
assertTrue("Description property should be optional", p.isNullable());
p = (Constrained) constraints.get("author");
assertFalse("Author property should be required", p.isNullable());
p = (Constrained) constraints.get("assistent");
assertTrue("Assistent property should be optional", p.isNullable());
// Test that Collections and Maps are nullable by default
p = (Constrained) constraints.get("chapters");
assertTrue("Chapters property should be optional", p.isNullable());
p = (Constrained) constraints.get("remarks");
assertTrue("Remarks property should be optional", p.isNullable());
}
@SuppressWarnings("rawtypes")
private void ensureConstraintsPresent(
String[] classSource, int classIndexToTest, int constraintCount) throws Exception {
// We need to do a real test here to make sure
GroovyClassLoader gcl = new GroovyClassLoader();
Class[] classes = new Class[classSource.length];
for (int i = 0; i < classSource.length; i++) {
classes[i] = gcl.parseClass(classSource[i]);
}
DefaultGrailsDomainClass domainClass = new DefaultGrailsDomainClass(classes[classIndexToTest]);
Map constraints = domainClass.getConstrainedProperties();
ConstrainedProperty p = (ConstrainedProperty) constraints.get("name");
Collection cons = p.getAppliedConstraints();
assertEquals(
"Incorrect number of constraints extracted: " + constraints, constraintCount, cons.size());
}