Add lots more unit tests

test/test_metadata.rb

@@ -16,7 +16,7 @@ class TestMetadata < Test::Unit::TestCase
     end
 
     should "store modification times" do
-      assert_equal @metadata.metadata[@path]["mtime"], File.mtime(@path)
+      assert_equal File.mtime(@path), @metadata.metadata[@path]["mtime"]
     end
 
     should "cache processed entries" do
@@ -32,7 +32,109 @@ class TestMetadata < Test::Unit::TestCase
 
     should "read from the metadata file" do
       @metadata = Metadata.new(@site)
-      assert_equal @metadata.metadata[@path]["mtime"], File.mtime(@path)
+      assert_equal File.mtime(@path), @metadata.metadata[@path]["mtime"]
+    end
+
+    # Methods
+
+    should "be able to add a path to the metadata" do
+      @metadata.clear
+      @metadata.add(@path)
+      assert_equal File.mtime(@path), @metadata.metadata[@path]["mtime"]
+      assert_equal [], @metadata.metadata[@path]["deps"]
+      assert @metadata.cache[@path]
+    end
+
+    should "return true on nonexistent path" do
+      @metadata.clear
+      assert @metadata.add("/bogus/path.md")
+      assert @metadata.regenerate?("/bogus/path.md")
+    end
+
+    should "be able to force a path to regenerate" do
+      @metadata.clear
+      @metadata.force(@path)
+      assert @metadata.cache[@path]
+      assert @metadata.regenerate?(@path)
+    end
+
+    should "be able to clear metadata and cache" do
+      @metadata.clear
+      @metadata.add(@path)
+      assert_equal 1, @metadata.metadata.length
+      assert_equal 1, @metadata.cache.length
+      @metadata.clear
+      assert_equal 0, @metadata.metadata.length
+      assert_equal 0, @metadata.cache.length
+    end
+
+    should "not regenerate a path if it is not modified" do
+      @metadata.clear
+      @metadata.add(@path)
+      @metadata.write
+      @metadata = Metadata.new(@site)
+
+      assert !@metadata.regenerate?(@path)
+    end
+
+    should "not regenerate if path in cache is false" do
+      @metadata.clear
+      @metadata.add(@path)
+      @metadata.write
+      @metadata = Metadata.new(@site)
+
+      assert !@metadata.regenerate?(@path)
+      assert !@metadata.cache[@path]
+      assert !@metadata.regenerate?(@path)
+    end
+
+    should "regenerate if path in not in metadata" do
+      @metadata.clear
+      @metadata.add(@path)
+
+      assert @metadata.regenerate?(@path)
+    end
+
+    should "regenerate if path in cache is true" do
+      @metadata.clear
+      @metadata.add(@path)
+
+      assert @metadata.regenerate?(@path)
+      assert @metadata.cache[@path]
+      assert @metadata.regenerate?(@path)
+    end
+
+    should "regenerate if file is modified" do
+      @metadata.clear
+      @metadata.add(@path)
+      @metadata.metadata[@path]["mtime"] = Time.at(0)
+      @metadata.write
+      @metadata = Metadata.new(@site)
+
+      assert_not_same File.mtime(@path), @metadata.metadata[@path]["mtime"]
+      assert @metadata.regenerate?(@path)
+    end
+
+    should "regenerate if dependency is modified" do
+      @metadata.clear
+      @metadata.add(@path)
+      @metadata.write
+      @metadata = Metadata.new(@site)
+
+      @metadata.add_dependency(@path, "new.dependency")
+      assert_equal ["new.dependency"], @metadata.metadata[@path]["deps"]
+      assert @metadata.regenerate?("new.dependency")
+      assert @metadata.regenerate?(@path)
+    end
+
+    should "regenerate everything if metadata is disabled" do
+      @site.config["full_rebuild"] = true
+      @metadata.clear
+      @metadata.add(@path)
+      @metadata.write
+      @metadata = Metadata.new(@site)
+
+      assert @metadata.regenerate?(@path)
     end
   end
 end