test: add download, store, and scraper tests

2026-08-05 11:50:30 +02:00
parent 563efe78bd
commit 3fe050ea15
5 changed files with 266 additions and 0 deletions
@@ -0,0 +1,42 @@
+package download
+
+import "testing"
+
+func bpmHTML(bpm, key, mode string) string {
+	return `tempo of <span class="x">` + bpm + ` BPM</span>` +
+		` with a <span class="x">` + key + `</span> key` +
+		` and a  <span class="x">` + mode + `</span> mode`
+}
+
+func TestParseBPM(t *testing.T) {
+	tests := []struct {
+		name    string
+		html    string
+		wantBPM string
+		wantKey string
+	}{
+		{"major key", bpmHTML("128", "A", "major"), "128", "A"},
+		{"minor key gets m suffix", bpmHTML("90", "F", "minor"), "90", "Fm"},
+		{"unicode sharp normalized", bpmHTML("124", "C♯", "major"), "124", "C#"},
+		{"unicode flat normalized", bpmHTML("100", "B♭", "minor"), "100", "Bbm"},
+		{"enharmonic pair keeps first", bpmHTML("110", "A♯/B♭", "major"), "110", "A#"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := parseBPM(tt.html)
+			if err != nil {
+				t.Fatalf("parseBPM: %v", err)
+			}
+			if got.BPM != tt.wantBPM || got.Key != tt.wantKey {
+				t.Errorf("parseBPM() = %+v, want BPM %q Key %q", got, tt.wantBPM, tt.wantKey)
+			}
+		})
+	}
+}
+
+func TestParseBPMNoData(t *testing.T) {
+	if _, err := parseBPM("<html>nothing here</html>"); err == nil {
+		t.Error("expected error for page without BPM data")
+	}
+}