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")
+	}
+}
@@ -0,0 +1,51 @@
+package download
+
+import (
+	"slices"
+	"testing"
+)
+
+func TestMatchesKeyword(t *testing.T) {
+	if !matchesKeyword("Deep House", electronicKeywords) {
+		t.Error("expected Deep House to match electronic keywords")
+	}
+	if !matchesKeyword("classic rock", nonElectronicKeywords) {
+		t.Error("expected classic rock to match non-electronic keywords")
+	}
+	if matchesKeyword("Spoken Word", electronicKeywords) {
+		t.Error("did not expect Spoken Word to match electronic keywords")
+	}
+}
+
+func TestFilterTags(t *testing.T) {
+	got := filterTags([]string{"Deep House", "Rock", "Spoken Word"})
+	want := []string{"Deep House", "Rock"}
+	if !slices.Equal(got, want) {
+		t.Errorf("filterTags() = %v, want %v", got, want)
+	}
+
+	if got := filterTags([]string{"Rock", "Jazz"}); len(got) != 0 {
+		t.Errorf("filterTags() = %v, want empty", got)
+	}
+
+	if got := filterTags(nil); len(got) != 0 {
+		t.Errorf("filterTags(nil) = %v, want empty", got)
+	}
+}
+
+func TestFormatTags(t *testing.T) {
+	tests := []struct {
+		tags []string
+		want string
+	}{
+		{[]string{"deep house"}, "Deep House"},
+		{[]string{"TECHNO", "trance"}, "Techno / Trance"},
+		{[]string{" house ", ""}, "House"},
+	}
+
+	for _, tt := range tests {
+		if got := formatTags(tt.tags); got != tt.want {
+			t.Errorf("formatTags(%v) = %q, want %q", tt.tags, got, tt.want)
+		}
+	}
+}
@@ -0,0 +1,71 @@
+package download
+
+import (
+	"context"
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestHashFile(t *testing.T) {
+	path := filepath.Join(t.TempDir(), "file.txt")
+	if err := os.WriteFile(path, []byte("hello world"), 0644); err != nil {
+		t.Fatal(err)
+	}
+
+	got, err := hashFile(path)
+	if err != nil {
+		t.Fatalf("hashFile: %v", err)
+	}
+
+	want := "b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9"
+	if got != want {
+		t.Errorf("hashFile() = %s, want %s", got, want)
+	}
+}
+
+func TestHashFileMissing(t *testing.T) {
+	if _, err := hashFile(filepath.Join(t.TempDir(), "missing")); err == nil {
+		t.Error("expected error for missing file")
+	}
+}
+
+func TestHashIndexFind(t *testing.T) {
+	dir := t.TempDir()
+	path := filepath.Join(dir, "sub", "track.mp3")
+	if err := os.MkdirAll(filepath.Dir(path), 0755); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(path, []byte("hello world"), 0644); err != nil {
+		t.Fatal(err)
+	}
+
+	index, err := newHashIndex(context.Background(), dir)
+	if err != nil {
+		t.Fatalf("newHashIndex: %v", err)
+	}
+
+	hash := "b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9"
+	found, ok := index.find(hash)
+	if !ok || found != path {
+		t.Errorf("find(%s) = %q, %v; want %q, true", hash, found, ok, path)
+	}
+
+	if _, ok := index.find("deadbeef"); ok {
+		t.Error("find() reported a match for an unknown hash")
+	}
+}
+
+func TestHashIndexCanceledContext(t *testing.T) {
+	dir := t.TempDir()
+	if err := os.WriteFile(filepath.Join(dir, "a"), []byte("x"), 0644); err != nil {
+		t.Fatal(err)
+	}
+
+	ctx, cancel := context.WithCancel(context.Background())
+	cancel()
+
+	if _, err := newHashIndex(ctx, dir); err == nil {
+		t.Error("expected error for canceled context")
+	}
+}
@@ -0,0 +1,39 @@
+package download
+
+import (
+	"testing"
+	"time"
+)
+
+func TestOptionsValidate(t *testing.T) {
+	valid := Options{Quality: "mp3_320", Timeout: time.Minute, Limit: 10}
+
+	tests := []struct {
+		name    string
+		mutate  func(o *Options)
+		wantErr bool
+	}{
+		{"valid", func(o *Options) {}, false},
+		{"mp3_128", func(o *Options) { o.Quality = "mp3_128" }, false},
+		{"flac", func(o *Options) { o.Quality = "flac" }, false},
+		{"invalid quality", func(o *Options) { o.Quality = "ogg" }, true},
+		{"uppercase quality", func(o *Options) { o.Quality = "MP3_320" }, true},
+		{"zero timeout", func(o *Options) { o.Timeout = 0 }, true},
+		{"negative timeout", func(o *Options) { o.Timeout = -time.Second }, true},
+		{"zero limit", func(o *Options) { o.Limit = 0 }, true},
+		{"limit too high", func(o *Options) { o.Limit = 101 }, true},
+		{"limit at max", func(o *Options) { o.Limit = 100 }, false},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			opts := valid
+			tt.mutate(&opts)
+
+			err := opts.Validate()
+			if (err != nil) != tt.wantErr {
+				t.Errorf("Validate() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}