Implemented category and priority setters in libpit. Started writing unit tests.

libpit/src/com/jdbernard/pit/Issue.groovy

@@ -2,17 +2,20 @@ package com.jdbernard.pit
 
 public class Issue {
 
-    String id
+    final String id
     Category category
     int priority
     String title
     String text
+    File source
 
     Issue(File file) {
 
         def matcher = file.name =~ /(\d{4})([bftc])(\d).*/
         if (!matcher) return null
 
+        this.source = file
+
         id = matcher[0][1]
         category = Category.toCategory(matcher[0][2])
         priority = matcher[0][3].toInteger()
@@ -21,4 +24,18 @@ public class Issue {
         text = file.text
     }
 
+    void setCategory(Category c) {
+        this.category = c
+        source.renameTo(getFilename())
+    }
+
+    void setPriority(int p) {
+        if (p < 0) priority = 0
+        else if (p > 9) priority = 9
+        else priority = p
+        source.renameTo(getFilename())
+    }
+
+    String getFilename() { return id + category.symbol + priority + ".rst"; }
+
 }

libpit/src/com/jdbernard/pit/Project.groovy

@@ -5,8 +5,14 @@ class Project {
     String name
     Map<String, Issue> issues = [:]
     Map<String, Project> projects = [:]
+    File source
 
     Project(File dir, Filter filter = null) {
+        if (!dir.isDirectory())
+            throw new IllegalArgumentException(
+                "${dir.name} is not a directory.")
+
+        this.source = dir
         this.name = dir.name
 
         dir.eachFile { child ->
@@ -31,6 +37,8 @@ class Project {
             }
         }
     }
+
+    public void rename(String newName) { source.renameTo(newName) }
     
     public void eachIssue(Closure c) {
         for (i in issues.values()) c.call(i)