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rendertree_test.go
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//
// Blackblog
// Copyright 2012 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package main
import (
"testing"
)
func TestRootTree(t *testing.T) {
one := &Post{URLFragment: "test_post"}
root, err := createRenderTree([]*Post{one})
if err != nil {
t.Fatal("Unexpected error creating render tree", err)
}
if root.t != renderTypeDirectory {
t.Fatalf("Root should be of type %v, got %v", renderTypeDirectory, root.t)
}
if root.parent != nil {
t.Errorf("Root should not have a parent, has %v", root.parent)
}
contents, ok := root.object.(renderTree)
if !ok {
t.Errorf("Root object should be a renderTree, is %v", root.object)
}
if len(contents) != 2 {
t.Errorf("Root's renderTree should have 2 object, has %d", len(contents))
}
if node, ok := contents["feed.xml"]; !ok {
t.Errorf("renderTree root does not contain feed.xml")
} else {
if node.t != renderTypeFeed {
t.Errorf("feed.xml does not have the right type, expected %v, got %v", renderTypeFeed, node.t)
}
}
if node, ok := contents["test_post.html"]; !ok {
t.Errorf("renderTree does not contain test_post.html")
} else {
if node.object != one {
t.Errorf("Single value should be %v, got %v", one, node.object)
}
if node.parent != root {
t.Errorf("Single value parent should be %v, got %v", root, node.parent)
}
}
}
func TestTwoDirs(t *testing.T) {
post := &Post{URLFragment: "test_post", Date: "14 October 2012"}
root, err := createRenderTree([]*Post{post})
if err != nil {
t.Fatal("Unexpected error creating render tree", err)
}
contents, ok := root.object.(renderTree)
if !ok {
t.Errorf("Root object should be a render tree, is %v", root.object)
}
if len(contents) != 2 {
t.Errorf("Root's renderTree should have 1 object, has %d", len(contents))
}
year, ok := contents["2012"]
if !ok {
t.Fatalf("Year directory not present")
}
if year.t != renderTypeDirectory {
t.Errorf("Year should be a directory, is %v", year.t)
}
if year.parent != root {
t.Errorf("Year should have parent %v, is %v", root, year.parent)
}
contents, ok = year.object.(renderTree)
if !ok {
t.Fatalf("Year should be a renderTree, got %v", contents)
}
month, ok := contents["10"]
if !ok {
t.Fatalf("Month directory not present")
}
if month.t != renderTypeDirectory {
t.Errorf("Month should be a directory, is %v", month.t)
}
if month.parent != year {
t.Errorf("Month should have parent %v, is %v", year, month.parent)
}
contents, ok = month.object.(renderTree)
if !ok {
t.Fatalf("Month should be a renderTree, got %v", contents)
}
postRender, ok := contents["test_post.html"]
if !ok {
t.Fatalf("Test post not present")
}
if postRender.t != renderTypePost {
t.Errorf("Test post should be a post, got %v", postRender.t)
}
if postRender.parent != month {
t.Errorf("Test post should have parent %v, is %v", month, postRender.parent)
}
if testPost, ok := postRender.object.(*Post); !ok {
t.Errorf("Test post should be a post, got %v", testPost)
} else if testPost != post {
t.Errorf("Post should equal %v, got %v", post, testPost)
}
}
func TestVisitor(t *testing.T) {
root := &render{
t: renderTypeDirectory,
object: renderTree{
"a": &render{
t: renderTypePost,
object: &Post{Title: "First"},
},
"b": &render{
t: renderTypePost,
object: &Post{Title: "Second"},
},
"c": &render{
t: renderTypeDirectory,
object: renderTree{
"d": &render{t: renderTypeRedirect},
"e": &render{
t: renderTypePost,
object: &Post{Title: "Third"},
},
"f": &render{
t: renderTypeDirectory,
object: renderTree{
"g": &render{
t: renderTypePost,
object: &Post{Title: "Fourth"},
},
},
},
},
},
},
}
expectation := map[string]bool{
"First": false,
"Second": false,
"Third": false,
"Fourth": false,
}
c := visitPosts(root)
for p := range c {
expectation[p.Title] = true
}
for k, v := range expectation {
if !v {
t.Errorf("Did not visit post with title %q", k)
}
}
}
func TestNodeDepth(t *testing.T) {
r := &render{}
d := nodeDepth(r)
if d != 0 {
t.Errorf("Node depth for root should be 0, got %d", d)
}
c1 := &render{parent: r}
d = nodeDepth(c1)
if d != 1 {
t.Errorf("Node depth for c1 should be 1, got %d", d)
}
c2 := &render{parent: c1}
d = nodeDepth(c2)
if d != 2 {
t.Errorf("Node depth for c2 should be 2, got %d", d)
}
}
func TestDepthPath(t *testing.T) {
r := &render{}
p := depthPath(r)
e := ""
if p != e {
t.Errorf("Depth path for root should be %q, got %q", e, p)
}
// In a directory structure, nodes off the root are at "root level."
c1 := &render{parent: r}
p = depthPath(c1)
e = ""
if p != e {
t.Errorf("Depth path for c1 should be %q, got %q", e, p)
}
c2 := &render{parent: c1}
p = depthPath(c2)
e = "../"
if p != e {
t.Errorf("Depth path for c2 should be %q, got %q", e, p)
}
}