1 files changed, 52 insertions, 0 deletions
diff --git a/hugolib/config_test.go b/hugolib/config_test.go
index 882d83c8d..37605b4c2 100644
--- a/hugolib/config_test.go
+++ b/hugolib/config_test.go
@@ -782,3 +782,55 @@ defaultMarkdownHandler = 'blackfriday'
 	b.Assert(err.Error(), qt.Contains, "Configured defaultMarkdownHandler \"blackfriday\" not found. Did you mean to use goldmark? Blackfriday was removed in Hugo v0.100.0.")
 
 }
+
+// Issue 8979
+func TestHugoConfig(t *testing.T) {
+	filesTemplate := `
+-- hugo.toml --
+theme = "mytheme"
+[params]
+rootparam = "rootvalue"
+-- config/_default/hugo.toml --
+[params]
+rootconfigparam = "rootconfigvalue"
+-- themes/mytheme/config/_default/hugo.toml --
+[params]
+themeconfigdirparam = "themeconfigdirvalue"
+-- themes/mytheme/hugo.toml --
+[params]
+themeparam = "themevalue"
+-- layouts/index.html --
+rootparam: {{ site.Params.rootparam }}
+rootconfigparam: {{ site.Params.rootconfigparam }}
+themeparam: {{ site.Params.themeparam }}
+themeconfigdirparam: {{ site.Params.themeconfigdirparam }}
+
+
+`
+
+	for _, configName := range []string{"hugo.toml", "config.toml"} {
+		configName := configName
+		t.Run(configName, func(t *testing.T) {
+			t.Parallel()
+
+			files := strings.ReplaceAll(filesTemplate, "hugo.toml", configName)
+
+			b, err := NewIntegrationTestBuilder(
+				IntegrationTestConfig{
+					T:           t,
+					TxtarString: files,
+				},
+			).BuildE()
+
+			b.Assert(err, qt.IsNil)
+			b.AssertFileContent("public/index.html",
+				"rootparam: rootvalue",
+				"rootconfigparam: rootconfigvalue",
+				"themeparam: themevalue",
+				"themeconfigdirparam: themeconfigdirvalue",
+			)
+
+		})
+	}
+
+}