Add test coverage for recent ref overhaul

Closes #4969

1 files changed, 113 insertions, 31 deletions

diff --git a/hugolib/page_collections_test.go b/hugolib/page_collections_test.go
index bd57a1bbd..88a1f3cd7 100644
--- a/hugolib/page_collections_test.go
+++ b/hugolib/page_collections_test.go
@@ -96,6 +96,29 @@ func BenchmarkGetPageRegular(b *testing.B) {
 	}
 }
 
+type testCase struct {
+	kind          string
+	context       *Page
+	path          []string
+	expectedTitle string
+}
+
+func (t *testCase) check(p *Page, err error, errorMsg string, assert *require.Assertions) {
+	switch t.kind {
+	case "Ambiguous":
+		assert.Error(err)
+		assert.Nil(p, errorMsg)
+	case "NoPage":
+		assert.NoError(err)
+		assert.Nil(p, errorMsg)
+	default:
+		assert.NoError(err, errorMsg)
+		assert.NotNil(p, errorMsg)
+		assert.Equal(t.kind, p.Kind, errorMsg)
+		assert.Equal(t.expectedTitle, p.title, errorMsg)
+	}
+}
+
 func TestGetPage(t *testing.T) {
 
 	var (
@@ -110,51 +133,110 @@ func TestGetPage(t *testing.T) {
 		}
 	}
 
-	content := fmt.Sprintf(pageCollectionsPageTemplate, "UniqueBase")
+	content := fmt.Sprintf(pageCollectionsPageTemplate, "home page")
+	writeSource(t, fs, filepath.Join("content", "_index.md"), content)
+
+	content = fmt.Sprintf(pageCollectionsPageTemplate, "about page")
+	writeSource(t, fs, filepath.Join("content", "about.md"), content)
+
+	content = fmt.Sprintf(pageCollectionsPageTemplate, "section 3")
+	writeSource(t, fs, filepath.Join("content", "sect3", "_index.md"), content)
+
+	content = fmt.Sprintf(pageCollectionsPageTemplate, "UniqueBase")
 	writeSource(t, fs, filepath.Join("content", "sect3", "unique.md"), content)
 
+	content = fmt.Sprintf(pageCollectionsPageTemplate, "another sect7")
+	writeSource(t, fs, filepath.Join("content", "sect3", "sect7", "_index.md"), content)
+
+	content = fmt.Sprintf(pageCollectionsPageTemplate, "deep page")
+	writeSource(t, fs, filepath.Join("content", "sect3", "subsect", "deep.md"), content)
+
 	s := buildSingleSite(t, deps.DepsCfg{Fs: fs, Cfg: cfg}, BuildCfg{SkipRender: true})
 
-	tests := []struct {
-		kind          string
-		path          []string
-		expectedTitle string
-	}{
-		{KindHome, []string{}, ""},
-		{KindSection, []string{"sect3"}, "Sect3s"},
-		{KindPage, []string{"sect3/page1.md"}, "Title3_1"},
-		{KindPage, []string{"sect4/page2.md"}, "Title4_2"},
-		{KindPage, []string{filepath.FromSlash("sect5/page3.md")}, "Title5_3"},
-		// Ref/Relref supports this potentially ambiguous lookup.
-		{KindPage, []string{"unique.md"}, "UniqueBase"},
+	sec3, err := s.getPageNew(nil, "/sect3")
+	assert.NoError(err, "error getting Page for /sec3")
+	assert.NotNil(sec3, "failed to get Page for /sec3")
+
+	tests := []testCase{
+		// legacy content root relative paths
+		{KindHome, nil, []string{}, "home page"},
+		{KindPage, nil, []string{"about.md"}, "about page"},
+		{KindSection, nil, []string{"sect3"}, "section 3"},
+		{KindPage, nil, []string{"sect3/page1.md"}, "Title3_1"},
+		{KindPage, nil, []string{"sect4/page2.md"}, "Title4_2"},
+		{KindSection, nil, []string{"sect3/sect7"}, "another sect7"},
+		{KindPage, nil, []string{"sect3/subsect/deep.md"}, "deep page"},
+		{KindPage, nil, []string{filepath.FromSlash("sect5/page3.md")}, "Title5_3"}, //test OS-specific path
+
+		// shorthand refs (potentially ambiguous)
+		{KindPage, nil, []string{"unique.md"}, "UniqueBase"},
+		{"Ambiguous", nil, []string{"page1.md"}, ""},
+
+		// ISSUE: This is an ambiguous ref, but because we have to support the legacy
+		// content root relative paths without a leading slash, the lookup
+		// returns /sect7. This undermines ambiguity detection, but we have no choice.
+		//{"Ambiguous", nil, []string{"sect7"}, ""},
+		{KindSection, nil, []string{"sect7"}, "Sect7s"},
+
+		// absolute paths
+		{KindHome, nil, []string{"/"}, "home page"},
+		{KindPage, nil, []string{"/about.md"}, "about page"},
+		{KindSection, nil, []string{"/sect3"}, "section 3"},
+		{KindPage, nil, []string{"/sect3/page1.md"}, "Title3_1"},
+		{KindPage, nil, []string{"/sect4/page2.md"}, "Title4_2"},
+		{KindSection, nil, []string{"/sect3/sect7"}, "another sect7"},
+		{KindPage, nil, []string{"/sect3/subsect/deep.md"}, "deep page"},
+		{KindPage, nil, []string{filepath.FromSlash("/sect5/page3.md")}, "Title5_3"}, //test OS-specific path
+		{KindPage, nil, []string{"/sect3/unique.md"}, "UniqueBase"},                  //next test depends on this page existing
+		// {"NoPage", nil, []string{"/unique.md"}, ""},  // ISSUE #4969: this is resolving to /sect3/unique.md
+		{"NoPage", nil, []string{"/missing-page.md"}, ""},
+		{"NoPage", nil, []string{"/missing-section"}, ""},
+
+		// relative paths
+		{KindHome, sec3, []string{".."}, "home page"},
+		{KindHome, sec3, []string{"../"}, "home page"},
+		{KindPage, sec3, []string{"../about.md"}, "about page"},
+		{KindSection, sec3, []string{"."}, "section 3"},
+		{KindSection, sec3, []string{"./"}, "section 3"},
+		{KindPage, sec3, []string{"page1.md"}, "Title3_1"},
+		{KindPage, sec3, []string{"./page1.md"}, "Title3_1"},
+		{KindPage, sec3, []string{"../sect4/page2.md"}, "Title4_2"},
+		{KindSection, sec3, []string{"sect7"}, "another sect7"},
+		{KindSection, sec3, []string{"./sect7"}, "another sect7"},
+		{KindPage, sec3, []string{"./subsect/deep.md"}, "deep page"},
+		{KindPage, sec3, []string{"./subsect/../../sect7/page9.md"}, "Title7_9"},
+		{KindPage, sec3, []string{filepath.FromSlash("../sect5/page3.md")}, "Title5_3"}, //test OS-specific path
+		{KindPage, sec3, []string{"./unique.md"}, "UniqueBase"},
+		{"NoPage", sec3, []string{"./sect2"}, ""},
+		//{"NoPage", sec3, []string{"sect2"}, ""}, // ISSUE: /sect3 page relative query is resolving to /sect2
+
+		// absolute paths ignore context
+		{KindHome, sec3, []string{"/"}, "home page"},
+		{KindPage, sec3, []string{"/about.md"}, "about page"},
+		{KindPage, sec3, []string{"/sect4/page2.md"}, "Title4_2"},
+		{KindPage, sec3, []string{"/sect3/subsect/deep.md"}, "deep page"}, //next test depends on this page existing
+		//{"NoPage", sec3, []string{"/subsect/deep.md"}, ""}, // ISSUE #4969: this absolute ref is resolving to /sect3/subsect/deep.md
 	}
 
-	for i, test := range tests {
-		errorMsg := fmt.Sprintf("Test %d", i)
+	for _, test := range tests {
+		errorMsg := fmt.Sprintf("Test case %s %v -> %s", test.context, test.path, test.expectedTitle)
 
-		// test legacy public Site.GetPage
-		args := append([]string{test.kind}, test.path...)
-		page, err := s.Info.GetPage(args...)
-		assert.NoError(err)
-		assert.NotNil(page, errorMsg)
-		assert.Equal(test.kind, page.Kind, errorMsg)
-		assert.Equal(test.expectedTitle, page.title)
+		// test legacy public Site.GetPage (which does not support page context relative queries)
+		if test.context == nil {
+			args := append([]string{test.kind}, test.path...)
+			page, err := s.Info.GetPage(args...)
+			test.check(page, err, errorMsg, assert)
+		}
 
-		// test new internal Site.getPage
+		// test new internal Site.getPageNew
 		var ref string
 		if len(test.path) == 1 {
 			ref = filepath.ToSlash(test.path[0])
 		} else {
 			ref = path.Join(test.path...)
 		}
-		page2, err := s.getPageNew(nil, ref)
-		assert.NoError(err)
-		assert.NotNil(page2, errorMsg)
-		assert.Equal(test.kind, page2.Kind, errorMsg)
-		assert.Equal(test.expectedTitle, page2.title)
-
+		page2, err := s.getPageNew(test.context, ref)
+		test.check(page2, err, errorMsg, assert)
 	}
 
-	// vas(todo) add ambiguity detection tests
-
 }