Add/change some tests

Signed-off-by: jolheiser <john.olheiser@gmail.com>

xtfs_test.go

@@ -8,57 +8,66 @@ import (
 	"testing"
 )
 
-var (
-	//go:embed _test/embed
-	embedded embed.FS
-	xtfs     *XTFS
-)
+//go:embed _test/embed
+var embedded embed.FS
 
 func TestMain(m *testing.M) {
-	var err error
-	xtfs, err = New("_test/disk", embedded, WithSub("_test/embed"), WithCaching(false))
-	if err != nil {
-		panic(err)
-	}
 	os.Exit(m.Run())
 }
 
-func TestEmbed(t *testing.T) {
-	fi, err := xtfs.Open("test1.txt")
+func TestXTFS(t *testing.T) {
+	tt := []struct {
+		Name     string
+		File     string
+		Expected string
+	}{
+		{
+			Name:     "Embed",
+			File:     "test1.txt",
+			Expected: "test1",
+		},
+		{
+			Name:     "Disk",
+			File:     "test2.txt",
+			Expected: "test3",
+		},
+	}
+
+	x, err := New("_test/disk", embedded, WithSub("_test/embed"), WithCaching(false))
+	if err != nil {
+		t.Log(err)
+		t.FailNow()
+	}
+
+	for _, tc := range tt {
+		t.Run(tc.Name, func(t *testing.T) {
+			fi, err := x.Open(tc.File)
 			if err != nil {
 				t.Log(err)
 				t.FailNow()
 			}
 			defer fi.Close()
 
-	test1, err := io.ReadAll(fi)
+			contents, err := io.ReadAll(fi)
 			if err != nil {
 				t.Log(err)
 				t.FailNow()
 			}
 
-	if !strings.EqualFold(string(test1), "test1") {
-		t.Log("embed did not match")
+			if !strings.EqualFold(string(contents), tc.Expected) {
+				t.Logf("xtfs did not match:\n\tgot: %s\n\texpected: %s\n", string(contents), tc.Expected)
 				t.FailNow()
 			}
+		})
+	}
 }
 
-func TestDisk(t *testing.T) {
-	fi, err := xtfs.Open("test2.txt")
-	if err != nil {
-		t.Log(err)
-		t.FailNow()
-	}
-	defer fi.Close()
+var emptyFS embed.FS
 
-	test2, err := io.ReadAll(fi)
+func TestInvalid(t *testing.T) {
+	_, err := New("/var/lib/myapp/assets/custom", emptyFS)
 	if err != nil {
-		t.Log(err)
-		t.FailNow()
-	}
-
-	if !strings.EqualFold(string(test2), "test3") {
-		t.Log("embed did not match")
+		t.Log("invalid XTFS should not error explicitly")
 		t.FailNow()
 	}
 }