Fixes #23, adds Tests action

internal/quake/content/router.go

@@ -7,7 +7,6 @@ import (
 	"net/http"
 	"os"
 	"path/filepath"
-	"regexp"
 	"strings"
 
 	"github.com/labstack/echo/v4"
@@ -130,10 +129,10 @@ func NewRouter(cfg *Config) (*echo.Echo, error) {
 	return e, nil
 }
 
-var assetPattern = regexp.MustCompile(`(\d+-)`)
-
 // trimAssetName returns a path string that has been prefixed with a crc32
 // checksum.
 func trimAssetName(s string) string {
-	return assetPattern.ReplaceAllLiteralString(s, "")
+	d, f := filepath.Split(s)
+	f = f[strings.Index(f, "-")+1:]
+	return filepath.Join(d, f)
 }

internal/quake/content/router_test.go

@@ -0,0 +1,35 @@
+package content
+
+import (
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+)
+
+func TestTrimAssetName(t *testing.T) {
+	cases := []struct {
+		name     string
+		input    string
+		expected string
+	}{
+		{
+			name:     "root folder",
+			input:    "857908472-linuxq3ademo-1.11-6.x86.gz.sh",
+			expected: "linuxq3ademo-1.11-6.x86.gz.sh",
+		},
+		{
+			name:     "pak file",
+			input:    "baseq3/2483777038-pak0.pk3",
+			expected: "baseq3/pak0.pk3",
+		},
+	}
+
+	for _, c := range cases {
+		t.Run(c.name, func(t *testing.T) {
+			result := trimAssetName(c.input)
+			if diff := cmp.Diff(c.expected, result); diff != "" {
+				t.Errorf("content: after trimAssetName differs: (-want +got)\n%s", diff)
+			}
+		})
+	}
+}