public Transform moduleName(String script) {
		Assert.hasText(script, "script can not be empty nor null");
		this.script = script;
		return this;
	}
Sets the groovy script the user wants to transform the input.
@param script the file where the groovy script is located.
@return current instance of the transform fixture.
spring-xd-test-fixtures/src/main/java/org/springframework/xd/test/fixtures/Transform.java