first commit

pkg/images/processor_test.go

@@ -0,0 +1,44 @@
+package images
+
+import "testing"
+
+func TestNormalizeOptionsDefaults(t *testing.T) {
+	opts, err := NormalizeOptions(ProcessOptions{})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if opts.Quality != DefaultQuality {
+		t.Fatalf("expected default quality %d, got %d", DefaultQuality, opts.Quality)
+	}
+	if opts.Format != DefaultFormat {
+		t.Fatalf("expected default format %q, got %q", DefaultFormat, opts.Format)
+	}
+	if opts.Width != 0 || opts.Height != 0 {
+		t.Fatalf("expected width/height to stay 0 when not provided")
+	}
+}
+
+func TestNormalizeOptionsJPGAlias(t *testing.T) {
+	opts, err := NormalizeOptions(ProcessOptions{Format: "jpg", Quality: 10})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if opts.Format != "jpeg" {
+		t.Fatalf("expected jpeg alias, got %q", opts.Format)
+	}
+}
+
+func TestNormalizeOptionsRejectsInvalidValues(t *testing.T) {
+	cases := []ProcessOptions{
+		{Width: -1, Quality: 90, Format: "avif"},
+		{Height: -1, Quality: 90, Format: "avif"},
+		{Quality: 101, Format: "avif"},
+		{Quality: 90, Format: "gif"},
+	}
+
+	for _, tc := range cases {
+		if _, err := NormalizeOptions(tc); err == nil {
+			t.Fatalf("expected error for case: %+v", tc)
+		}
+	}
+}