test: add tests for browseURL helper

templates/funcs_test.go

@@ -0,0 +1,84 @@
+package templates
+
+import "testing"
+
+func TestBrowseURLPreservesAndOverridesParams(t *testing.T) {
+	t.Parallel()
+
+	got, err := browseURL(
+		browseURLParams{
+			Query:   "full metal",
+			Type:    "tv",
+			Status:  "airing",
+			OrderBy: "score",
+			Sort:    "desc",
+			Studio:  42,
+			SFW:     true,
+			Genres:  []int{1, 2},
+			Page:    3,
+		},
+		map[string]any{
+			"status": "",
+			"sort":   "asc",
+			"page":   4,
+		},
+	)
+	if err != nil {
+		t.Fatalf("browseURL error: %v", err)
+	}
+
+	want := "/browse?genres=1&genres=2&order_by=score&page=4&q=full+metal&sfw=true&sort=asc&studio=42&type=tv"
+	if got != want {
+		t.Fatalf("unexpected url\nwant: %s\ngot:  %s", want, got)
+	}
+}
+
+func TestBrowseURLClearsAndEncodesValues(t *testing.T) {
+	t.Parallel()
+
+	got, err := browseURL(
+		map[string]any{
+			"Query":  "K-On! & friends",
+			"Studio": 99,
+			"SFW":    false,
+			"Genres": []int{7, 9},
+		},
+		map[string]any{
+			"studio": "",
+			"genres": []int{5},
+		},
+	)
+	if err != nil {
+		t.Fatalf("browseURL error: %v", err)
+	}
+
+	want := "/browse?genres=5&q=K-On%21+%26+friends&sfw=false"
+	if got != want {
+		t.Fatalf("unexpected url\nwant: %s\ngot:  %s", want, got)
+	}
+}
+
+func TestBrowseURLSupportsNamedMapTypes(t *testing.T) {
+	t.Parallel()
+
+	type namedMap map[string]any
+
+	got, err := browseURL(
+		namedMap{
+			"Query":  "monster",
+			"Status": "airing",
+			"SFW":    true,
+		},
+		map[string]any{
+			"status": "complete",
+		},
+	)
+	if err != nil {
+		t.Fatalf("browseURL error: %v", err)
+	}
+
+	want := "/browse?q=monster&sfw=true&status=complete"
+	if got != want {
+		t.Fatalf("unexpected url\nwant: %s\ngot:  %s", want, got)
+	}
+}