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Test renderReadmeFile (#23185)

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Add test coverage to the important features of
[`routers.web.repo.renderReadmeFile`](067b0c2664/routers/web/repo/view.go (L273));
namely that:

- it can handle looking in docs/, .gitea/, and .github/
- it can handle choosing between multiple competing READMEs
- it prefers the localized README to the markdown README to the
plaintext README
- it can handle broken symlinks when processing all the options
- it uses the name of the symlink, not the name of the target of the
symlink
This commit is contained in:
Nick
2023-03-08 20:24:23 -05:00
committed by GitHub
parent c5573dbc0f
commit 52e24167e5
48 changed files with 194 additions and 4 deletions
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105
tests/integration/repo_test.go
View File

@@ -257,6 +257,111 @@ func TestViewRepoDirectory(t *testing.T) {
assert.Zero(t, repoSummary.Length())
}
// ensure that the all the different ways to find and render a README work
func TestViewRepoDirectoryReadme(t *testing.T) {
defer tests.PrepareTestEnv(t)()
// there are many combinations:
// - READMEs can be .md, .txt, or have no extension
// - READMEs can be tagged with a language and even a country code
// - READMEs can be stored in docs/, .gitea/, or .github/
// - READMEs can be symlinks to other files
// - READMEs can be broken symlinks which should not render
//
// this doesn't cover all possible cases, just the major branches of the code
session := loginUser(t, "user2")
check := func(name, url, expectedFilename, expectedReadmeType, expectedContent string) {
t.Run(name, func(t *testing.T) {
defer tests.PrintCurrentTest(t)()
req := NewRequest(t, "GET", url)
resp := session.MakeRequest(t, req, http.StatusOK)
htmlDoc := NewHTMLParser(t, resp.Body)
readmeName := htmlDoc.doc.Find("h4.file-header")
readmeContent := htmlDoc.doc.Find(".file-view") // TODO: add a id="readme" to the output to make this test more precise
readmeType, _ := readmeContent.Attr("class")
assert.Equal(t, expectedFilename, strings.TrimSpace(readmeName.Text()))
assert.Contains(t, readmeType, expectedReadmeType)
assert.Contains(t, readmeContent.Text(), expectedContent)
})
}
// viewing the top level
check("Home", "/user2/readme-test/", "README.md", "markdown", "The cake is a lie.")
// viewing different file extensions
check("md", "/user2/readme-test/src/branch/master/", "README.md", "markdown", "The cake is a lie.")
check("txt", "/user2/readme-test/src/branch/txt/", "README.txt", "plain-text", "My spoon is too big.")
check("plain", "/user2/readme-test/src/branch/plain/", "README", "plain-text", "Birken my stocks gee howdy")
check("i18n", "/user2/readme-test/src/branch/i18n/", "README.zh.md", "markdown", "蛋糕是一个谎言")
// viewing different subdirectories
check("subdir", "/user2/readme-test/src/branch/subdir/libcake", "README.md", "markdown", "Four pints of sugar.")
check("docs-direct", "/user2/readme-test/src/branch/special-subdir-docs/docs/", "README.md", "markdown", "This is in docs/")
check("docs", "/user2/readme-test/src/branch/special-subdir-docs/", "docs/README.md", "markdown", "This is in docs/")
check(".gitea", "/user2/readme-test/src/branch/special-subdir-.gitea/", ".gitea/README.md", "markdown", "This is in .gitea/")
check(".github", "/user2/readme-test/src/branch/special-subdir-.github/", ".github/README.md", "markdown", "This is in .github/")
// symlinks
// symlinks are subtle:
// - they should be able to handle going a reasonable number of times up and down in the tree
// - they shouldn't get stuck on link cycles
// - they should determine the filetype based on the name of the link, not the target
check("symlink", "/user2/readme-test/src/branch/symlink/", "README.md", "markdown", "This is in some/other/path")
check("symlink-multiple", "/user2/readme-test/src/branch/symlink/some/", "README.txt", "plain-text", "This is in some/other/path")
check("symlink-up-and-down", "/user2/readme-test/src/branch/symlink/up/back/down/down", "README.md", "markdown", "It's a me, mario")
// testing fallback rules
// READMEs are searched in this order:
// - [README.zh-cn.md, README.zh_cn.md, README.zh.md, README_zh.md, README.md, README.txt, README,
// docs/README.zh-cn.md, docs/README.zh_cn.md, docs/README.zh.md, docs/README_zh.md, docs/README.md, docs/README.txt, docs/README,
// .gitea/README.zh-cn.md, .gitea/README.zh_cn.md, .gitea/README.zh.md, .gitea/README_zh.md, .gitea/README.md, .gitea/README.txt, .gitea/README,
// .github/README.zh-cn.md, .github/README.zh_cn.md, .github/README.zh.md, .github/README_zh.md, .github/README.md, .github/README.txt, .github/README]
// and a broken/looped symlink counts as not existing at all and should be skipped.
// again, this doesn't cover all cases, but it covers a few
check("fallback/top", "/user2/readme-test/src/branch/fallbacks/", "README.en.md", "markdown", "This is README.en.md")
check("fallback/2", "/user2/readme-test/src/branch/fallbacks2/", "README.md", "markdown", "This is README.md")
check("fallback/3", "/user2/readme-test/src/branch/fallbacks3/", "README", "plain-text", "This is README")
check("fallback/4", "/user2/readme-test/src/branch/fallbacks4/", "docs/README.en.md", "markdown", "This is docs/README.en.md")
check("fallback/5", "/user2/readme-test/src/branch/fallbacks5/", "docs/README.md", "markdown", "This is docs/README.md")
check("fallback/6", "/user2/readme-test/src/branch/fallbacks6/", "docs/README", "plain-text", "This is docs/README")
check("fallback/7", "/user2/readme-test/src/branch/fallbacks7/", ".gitea/README.en.md", "markdown", "This is .gitea/README.en.md")
check("fallback/8", "/user2/readme-test/src/branch/fallbacks8/", ".gitea/README.md", "markdown", "This is .gitea/README.md")
check("fallback/9", "/user2/readme-test/src/branch/fallbacks9/", ".gitea/README", "plain-text", "This is .gitea/README")
// this case tests that broken symlinks count as missing files, instead of rendering their contents
check("fallbacks-broken-symlinks", "/user2/readme-test/src/branch/fallbacks-broken-symlinks/", "docs/README", "plain-text", "This is docs/README")
// some cases that should NOT render a README
// - /readme
// - /.github/docs/README.md
// - a symlink loop
missing := func(name, url string) {
t.Run("missing/"+name, func(t *testing.T) {
defer tests.PrintCurrentTest(t)()
req := NewRequest(t, "GET", url)
resp := session.MakeRequest(t, req, http.StatusOK)
htmlDoc := NewHTMLParser(t, resp.Body)
_, exists := htmlDoc.doc.Find(".file-view").Attr("class")
fmt.Printf("%s", resp.Body)
assert.False(t, exists, "README should not have rendered")
})
}
missing("sp-ace", "/user2/readme-test/src/branch/sp-ace/")
missing("nested-special", "/user2/readme-test/src/branch/special-subdir-nested/subproject") // the special subdirs should only trigger on the repo root
// missing("special-subdir-nested", "/user2/readme-test/src/branch/special-subdir-nested/") // This is currently FAILING, due to a bug introduced in https://github.com/go-gitea/gitea/pull/22177
missing("symlink-loop", "/user2/readme-test/src/branch/symlink-loop/")
}
func TestMarkDownImage(t *testing.T) {
defer tests.PrepareTestEnv(t)()