hugolib: Prevent TestShortcodeTweet from accessing network

Overload `getJSON` and return mock response.  Also standardized error
reporting strings in tests.

Fixes #2359

diff --git a/hugolib/embedded_shortcodes_test.go b/hugolib/embedded_shortcodes_test.go
index 7dda21d41f20a8b847a95635428ca30db26f6b9f..b0ce1a97a2a40a35b787bbda33c2e880f0327031 100644 (file)
--- a/hugolib/embedded_shortcodes_test.go
+++ b/hugolib/embedded_shortcodes_test.go
@@ -14,6 +14,7 @@
 package hugolib
 
 import (
+       "encoding/json"
        "fmt"
        "net/url"
        "os"
@@ -113,7 +114,7 @@ void do();
                }
 
                if !matched {
-                       t.Errorf("[%d] Hightlight mismatch, got %s\n", i, output)
+                       t.Errorf("[%d] unexpected rendering, got %s\n", i, output)
                }
        }
 }
@@ -153,7 +154,7 @@ func TestShortcodeFigure(t *testing.T) {
                }
 
                if !matched {
-                       t.Errorf("[%d] Hightlight mismatch, got %s\n", i, output)
+                       t.Errorf("[%d] unexpected rendering, got %s\n", i, output)
                }
        }
 }
@@ -178,7 +179,7 @@ func TestShortcodeSpeakerdeck(t *testing.T) {
                }
 
                if !matched {
-                       t.Errorf("[%d] Hightlight mismatch, got %s\n", i, output)
+                       t.Errorf("[%d] unexpected rendering, got %s\n", i, output)
                }
        }
 }
@@ -213,7 +214,7 @@ func TestShortcodeYoutube(t *testing.T) {
                }
 
                if !matched {
-                       t.Errorf("[%d] Hightlight mismatch, got %s\n", i, output)
+                       t.Errorf("[%d] unexpected rendering, got %s\n", i, output)
                }
        }
 }
@@ -248,7 +249,7 @@ func TestShortcodeVimeo(t *testing.T) {
                }
 
                if !matched {
-                       t.Errorf("[%d] Hightlight mismatch, got %s\n", i, output)
+                       t.Errorf("[%d] unexpected rendering, got %s\n", i, output)
                }
        }
 }
@@ -277,25 +278,37 @@ func TestShortcodeGist(t *testing.T) {
                }
 
                if !matched {
-                       t.Errorf("[%d] Hightlight mismatch, got %s\n", i, output)
+                       t.Errorf("[%d] unexpected rendering, got %s\n", i, output)
                }
        }
 }
 
 func TestShortcodeTweet(t *testing.T) {
-       if testing.Short() {
-               t.Skip("skipping Twitter test in short mode.")
-       }
-
        for i, this := range []struct {
-               in, expected string
+               in, resp, expected string
        }{
                {
                        `{{< tweet 666616452582129664 >}}`,
-                       "(?s)^<blockquote class=\"twitter-tweet\"><p lang=\"en\" dir=\"ltr\">Hugo 0.15 will have 30%\\+ faster render times thanks to this commit <a href=\"https://t.co/FfzhM8bNhT\">https://t.co/FfzhM8bNhT</a>  <a href=\"https://twitter.com/hashtag/gohugo\\?src=hash\">#gohugo</a> <a href=\"https://twitter.com/hashtag/golang\\?src=hash\">#golang</a> <a href=\"https://t.co/ITbMNU2BUf\">https://t.co/ITbMNU2BUf</a></p>&mdash; Steve Francia \\(@spf13\\) <a href=\"https://twitter.com/spf13/status/666616452582129664\">November 17, 2015</a></blockquote>.*?<script async src=\"//platform.twitter.com/widgets.js\" charset=\"utf-8\"></script>$",
+                       `{"url":"https:\/\/twitter.com\/spf13\/status\/666616452582129664","author_name":"Steve Francia","author_url":"https:\/\/twitter.com\/spf13","html":"\u003Cblockquote class=\"twitter-tweet\"\u003E\u003Cp lang=\"en\" dir=\"ltr\"\u003EHugo 0.15 will have 30%+ faster render times thanks to this commit \u003Ca href=\"https:\/\/t.co\/FfzhM8bNhT\"\u003Ehttps:\/\/t.co\/FfzhM8bNhT\u003C\/a\u003E  \u003Ca href=\"https:\/\/twitter.com\/hashtag\/gohugo?src=hash\"\u003E#gohugo\u003C\/a\u003E \u003Ca href=\"https:\/\/twitter.com\/hashtag\/golang?src=hash\"\u003E#golang\u003C\/a\u003E \u003Ca href=\"https:\/\/t.co\/ITbMNU2BUf\"\u003Ehttps:\/\/t.co\/ITbMNU2BUf\u003C\/a\u003E\u003C\/p\u003E&mdash; Steve Francia (@spf13) \u003Ca href=\"https:\/\/twitter.com\/spf13\/status\/666616452582129664\"\u003ENovember 17, 2015\u003C\/a\u003E\u003C\/blockquote\u003E\n\u003Cscript async src=\"\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"\u003E\u003C\/script\u003E","width":550,"height":null,"type":"rich","cache_age":"3153600000","provider_name":"Twitter","provider_url":"https:\/\/twitter.com","version":"1.0"}`,
+                       `(?s)^<blockquote class="twitter-tweet"><p lang="en" dir="ltr">Hugo 0.15 will have 30%. faster render times thanks to this commit <a href="https://t.co/FfzhM8bNhT">https://t.co/FfzhM8bNhT</a>  <a href="https://twitter.com/hashtag/gohugo.src=hash">#gohugo</a> <a href="https://twitter.com/hashtag/golang.src=hash">#golang</a> <a href="https://t.co/ITbMNU2BUf">https://t.co/ITbMNU2BUf</a></p>&mdash; Steve Francia .@spf13. <a href="https://twitter.com/spf13/status/666616452582129664">November 17, 2015</a></blockquote>.*?<script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script>$`,
                },
        } {
+               // overload getJSON to return mock API response from Twitter
+               tweetFuncMap := template.FuncMap{
+                       "getJSON": func(urlParts ...string) interface{} {
+                               var v interface{}
+                               err := json.Unmarshal([]byte(this.resp), &v)
+                               if err != nil {
+                                       t.Fatalf("[%d] unexpected error in json.Unmarshal: %s", i, err)
+                                       return err
+                               }
+                               return v
+                       },
+               }
+
                templ := tpl.New()
+               templ.Lookup("").Funcs(tweetFuncMap)
+
                p, _ := pageFromString(simplePage, "simple.md")
                cacheFileID := viper.GetString("CacheDir") + url.QueryEscape("https://api.twitter.com/1/statuses/oembed.json?id=666616452582129664")
                defer os.Remove(cacheFileID)
@@ -308,7 +321,7 @@ func TestShortcodeTweet(t *testing.T) {
                }
 
                if !matched {
-                       t.Errorf("[%d] Hightlight mismatch, got %s\n", i, output)
+                       t.Errorf("[%d] unexpected rendering, got %s\n", i, output)
                }
        }
 }