1 files changed, 20 insertions, 0 deletions
diff --git a/internal/config/config_test.go b/internal/config/config_test.go
index e3af475..3830cb6 100644
--- a/internal/config/config_test.go
+++ b/internal/config/config_test.go
@@ -301,3 +301,23 @@ func TestPartShown(t *testing.T) {
 		t.Error("ewangelia not mentioned should still be shown")
 	}
 }
+
+func TestReadingCorpusResolution(t *testing.T) {
+	// drb is an embedded corpus with lang=en.
+	c := Config{ReadingVersion: "drb"}
+	if got := c.ReadingCorpus(); got != "drb" {
+		t.Fatalf("explicit reading_version: got %q", got)
+	}
+	c = Config{ReadingLang: "en"}
+	if got := c.ReadingCorpus(); got != "drb" {
+		t.Fatalf("reading_lang match: got %q", got)
+	}
+	c = Config{UILanguage: "en"}
+	if got := c.ReadingCorpus(); got != "drb" {
+		t.Fatalf("ui_language fallback: got %q", got)
+	}
+	c = Config{UILanguage: "pl"} // no pl corpus embedded
+	if got := c.ReadingCorpus(); got != "" {
+		t.Fatalf("no match should be empty: got %q", got)
+	}
+}