diff --git a/mk/check.mk b/mk/check.mk
index b3a9a899ea8..2b9253fe326 100644
--- a/mk/check.mk
+++ b/mk/check.mk
@@ -22,7 +22,7 @@ servo-test: $(DEPS_servo)
 	$(RUSTC) $(RFLAGS_servo) --test -o $@ $<
 
 reftest: $(S)src/test/harness/reftest/reftest.rs servo
-	$(RUSTC) $(RFLAGS_servo) -o $@ $< -L .
+	$(RUSTC) -o $@ $<
 
 contenttest: $(S)src/test/harness/contenttest/contenttest.rs servo
 	$(RUSTC) $(RFLAGS_servo) -o $@ $< -L .
@@ -44,15 +44,15 @@ check-all: $(DEPS_CHECK_TARGETS_ALL) check-servo tidy
 
 .PHONY: check-servo
 check-servo: servo-test
-	./servo-test $(TESTNAME)
+	./servo-test
 
 .PHONY: check-ref
 check-ref: reftest
-	./reftest --source-dir=$(S)/src/test/html/ref --work-dir=src/test/html/ref $(TESTNAME)
+	./reftest $(S)src/test/ref/*.list
 
 .PHONY: check-content
 check-content: contenttest
-	./contenttest --source-dir=$(S)/src/test/html/content $(TESTNAME)
+	./contenttest --source-dir=$(S)src/test/html/content $(TESTNAME)
 
 .PHONY: tidy
 tidy: 
diff --git a/src/test/harness/reftest/reftest.rs b/src/test/harness/reftest/reftest.rs
index 8ba59299148..11e96cfdf75 100644
--- a/src/test/harness/reftest/reftest.rs
+++ b/src/test/harness/reftest/reftest.rs
@@ -8,188 +8,141 @@
 // except according to those terms.
 
 extern mod std;
-extern mod servo;
+extern mod extra;
 
-use std::test::{TestOpts, run_tests_console, TestDesc};
-use std::getopts::{getopts, reqopt, opt_str, fail_str};
-use os::list_dir_path;
-use servo::run_pipeline_png;
-use servo::image::base::Image;
+use std::cell::Cell;
+use std::io;
+use std::os;
+use std::run;
+use extra::digest::{Digest, DigestUtil};
+use extra::sha1::Sha1;
+use extra::test::{DynTestName, DynTestFn, TestDesc, TestOpts, TestDescAndFn};
+use extra::test::run_tests_console;
 
-fn main(args: ~[~str]) {
-    let config = parse_config(args);
-    let opts = test_options(config);
-    let tests = find_tests(config);
-    install_rasterize_py(config);
-    run_tests_console(opts, tests);
-}
-
-struct Config {
-    source_dir: ~str,
-    work_dir: ~str,
-    filter: Option<~str>
-}
-
-fn parse_config(args: ~[~str]) -> Config {
-    let args = args.tail();
-    let opts = ~[reqopt(~"source-dir"), reqopt(~"work-dir")];
-    let matches = match getopts(args, opts) {
-      Ok(m) => m,
-      Err(f) => fail fail_str(f)
-    };
-
-    Config {
-        source_dir: opt_str(matches, ~"source-dir"),
-        work_dir: opt_str(matches, ~"work-dir"),
-        filter: if matches.free.is_empty() {
-            None
-        } else {
-            Some(matches.free.head())
-        }
+fn main() {
+    let args = os::args();
+    if args.len() < 2 {
+        println("error: at least one reftest list must be given");
+        os::set_exit_status(1);
+        return;
     }
-}
 
-fn test_options(config: Config) -> TestOpts {
-    {
-        filter: config.filter,
+    let tests = parse_lists(args.tail());
+    let test_opts = TestOpts {
+        filter: None,
         run_ignored: false,
-        logfile: None
-    }
-}
-
-fn find_tests(config: Config) -> ~[TestDesc] {
-    let all_files = list_dir_path(&Path(config.source_dir));
-    let html_files = all_files.filter( |file| file.to_str().ends_with(".html") );
-    return html_files.map(|file| make_test(config, (*file).to_str()) );
-}
-
-fn make_test(config: Config, file: ~str) -> TestDesc {
-    let directives = load_test_directives(file);
-
-    {
-        name: file,
-        testfn: fn~() { run_test(config, file) },
-        ignore: directives.ignore,
-        should_fail: false
-    }
-}
-
-struct Directives {
-    ignore: bool
-}
-
-fn load_test_directives(file: ~str) -> Directives {
-    let data = match io::read_whole_file_str(&Path(file)) {
-      result::Ok(data) => data,
-      result::Err(e) => fail #fmt("unable to load directives for %s: %s", file, e)
+        logfile: None,
+        run_tests: true,
+        run_benchmarks: false,
+        save_results: None,
+        compare_results: None,
     };
 
-    let mut ignore = false;
+    if !run_tests_console(&test_opts, tests) {
+        os::set_exit_status(1);
+    }
+}
 
-    for str::lines(data).each |line| {
-        if is_comment(line) {
-            if line.contains("ignore") {
-                ignore = true;
-                break;
+enum ReftestKind {
+    Same,
+    Different,
+}
+
+struct Reftest {
+    name: ~str,
+    kind: ReftestKind,
+    left: ~str,
+    right: ~str,
+}
+
+fn parse_lists(filenames: &[~str]) -> ~[TestDescAndFn] {
+    let mut tests: ~[TestDescAndFn] = ~[];
+    for filenames.iter().advance |file| {
+        let file_path = Path(*file);
+        let contents = match io::read_whole_file_str(&file_path) {
+            Ok(x) => x,
+            Err(s) => fail!(s)
+        };
+
+        for contents.line_iter().advance |line| {
+            let parts: ~[&str] = line.split_iter(' ').filter(|p| !p.is_empty()).collect();
+
+            if parts.len() != 3 {
+                fail!(fmt!("reftest line: '%s' doesn't match 'KIND LEFT RIGHT'", line));
             }
+
+            let kind = match parts[0] {
+                "==" => Same,
+                "!=" => Different,
+                _ => fail!(fmt!("reftest line: '%s' has invalid kind '%s'",
+                                line, parts[0]))
+            };
+            let src_dir = file_path.dirname();
+            let file_left = src_dir + "/" + parts[1];
+            let file_right = src_dir + "/" + parts[2];
+            
+            let reftest = Reftest {
+                name: parts[1] + " / " + parts[2],
+                kind: kind,
+                left: file_left,
+                right: file_right,
+            };
+
+            tests.push(make_test(reftest));
         }
     }
+    tests
+}
 
-    fn is_comment(line: ~str) -> bool {
-        line.starts_with("<!--")
-    }
-
-    return Directives {
-        ignore: ignore
+fn make_test(reftest: Reftest) -> TestDescAndFn {
+    let name = reftest.name.clone();
+    let reftest = Cell::new(reftest);
+    TestDescAndFn {
+        desc: TestDesc {
+            name: DynTestName(name),
+            ignore: false,
+            should_fail: false,
+        },
+        testfn: DynTestFn(|| {
+            check_reftest(reftest.take());
+        }),
     }
 }
 
-fn run_test(config: Config, file: ~str) {
-    let servo_image = render_servo(config, file);
-    let ref_image = render_ref(config, file);
+fn check_reftest(reftest: Reftest) {
+    let options = run::ProcessOptions::new();
+    let args = ~[~"-o", ~"/tmp/reftest-left.png", reftest.left.clone()];
+    let mut process = run::Process::new("./servo", args, options);
+    let _retval = process.finish();
+    // assert!(retval == 0);
 
-    assert servo_image.width == ref_image.width;
-    assert servo_image.height == ref_image.height;
-    #debug("image depth: ref: %?, servo: %?", ref_image.depth, servo_image.depth);
+    let args = ~[~"-o", ~"/tmp/reftest-right.png", reftest.right.clone()];
+    let mut process = run::Process::new("./servo", args, options);
+    let _retval = process.finish();
+    // assert!(retval == 0);
 
-    for uint::range(0, servo_image.height) |h| {
-        for uint::range(0, servo_image.width) |w| {
-            let i = (h * servo_image.width + w) * 4;
-            let servo_pixel = (
-                servo_image.data[i + 0],
-                servo_image.data[i + 1],
-                servo_image.data[i + 2],
-                servo_image.data[i + 3]
-            );
-            let ref_pixel = (
-                ref_image.data[i + 0],
-                ref_image.data[i + 1],
-                ref_image.data[i + 2],
-                ref_image.data[i + 3]
-            );
-            #debug("i: %?, x: %?, y: %?, ref: %?, servo: %?", i, w, h, ref_pixel, servo_pixel);
+    // check the pngs are bit equal
+    let left_sha = calc_hash(&Path("/tmp/reftest-left.png"));
+    let right_sha = calc_hash(&Path("/tmp/reftest-right.png"));
+    assert!(left_sha.is_some());
+    assert!(right_sha.is_some());
+    match reftest.kind {
+        Same => assert!(left_sha == right_sha),
+        Different => assert!(left_sha != right_sha),
+    }
+}
 
-            let (sr, sg, sb, sa) = servo_pixel;
-            let (rr, rg, rb, ra) = ref_pixel;
-
-            if sr != rr
-                || sg != rg
-                || sb != rb
-                || sa != ra {
-                fail #fmt("mismatched pixel. x: %?, y: %?, ref: %?, servo: %?", w, h, ref_pixel, servo_pixel)
+fn calc_hash(path: &Path) -> Option<~str> {
+    match io::file_reader(path) {
+        Err(*) => None,
+        Ok(reader) => {
+            let mut sha = Sha1::new();
+            loop {
+                let bytes = reader.read_bytes(4096);
+                sha.input(bytes);
+                if bytes.len() < 4096 { break; }
             }
+            Some(sha.result_str())
         }
     }
-}
-
-const WIDTH: uint = 800;
-const HEIGHT: uint = 600;
-
-fn render_servo(config: Config, file: ~str) -> Image {
-    let infile = ~"file://" + os::make_absolute(&Path(file)).to_str();
-    let outfilename = Path(file).filename().get().to_str() + ".png";
-    let outfile = Path(config.work_dir).push(outfilename).to_str();
-    run_pipeline_png(infile, outfile);
-    return sanitize_image(outfile);
-}
-
-fn render_ref(config: Config, file: ~str) -> Image {
-    let infile = file;
-    let outfilename = Path(file).filename().get().to_str() + "ref..png";
-    let outfile = Path(config.work_dir).push(outfilename);
-    // After we've generated the reference image once, we don't need
-    // to keep launching Firefox
-    if !os::path_exists(&outfile) {
-        let rasterize_path = rasterize_path(config);
-        let prog = run::start_program("python", ~[rasterize_path, infile, outfile.to_str()]);
-        prog.finish();
-    }
-    return sanitize_image(outfile.to_str());
-}
-
-fn sanitize_image(file: ~str) -> Image {
-    let buf = io::read_whole_file(&Path(file)).get();
-    let image = servo::image::base::load_from_memory(buf).get();
-
-    // I don't know how to precisely control the rendered height of
-    // the Firefox output, so it is larger than we want. Trim it down.
-    assert image.width == WIDTH;
-    assert image.height >= HEIGHT;
-    let data = vec::slice(image.data, 0, image.width * HEIGHT * 4);
-
-    return Image(image.width, HEIGHT, image.depth, data);
-}
-
-fn install_rasterize_py(config: Config) {
-    use io::WriterUtil;
-    let path = rasterize_path(config);
-    let writer = io::file_writer(&Path(path), ~[io::Create, io::Truncate]).get();
-    writer.write_str(rasterize_py());
-}
-
-fn rasterize_path(config: Config) -> ~str {
-    Path(config.work_dir).push(~"rasterize.py").to_str()
-}
-
-// This is the script that uses phantom.js to render pages
-fn rasterize_py() -> ~str { #include_str("rasterize.py") }
+}
\ No newline at end of file
diff --git a/src/test/ref/basic.list b/src/test/ref/basic.list
new file mode 100644
index 00000000000..ba962ad1a82
--- /dev/null
+++ b/src/test/ref/basic.list
@@ -0,0 +1 @@
+== hello_a.html hello_b.html
diff --git a/src/test/ref/hello_a.html b/src/test/ref/hello_a.html
new file mode 100644
index 00000000000..6ef40f0f03c
--- /dev/null
+++ b/src/test/ref/hello_a.html
@@ -0,0 +1,8 @@
+<html>
+  <head>
+    <title>hello</title>
+  </head>
+  <body>
+    <strong>Hello!</strong>
+  </body>
+</html>
diff --git a/src/test/ref/hello_b.html b/src/test/ref/hello_b.html
new file mode 100644
index 00000000000..e878c1f73f0
--- /dev/null
+++ b/src/test/ref/hello_b.html
@@ -0,0 +1,8 @@
+<html>
+  <head>
+    <title>hello</title>
+  </head>
+  <body>
+    <b>Hello!</b>
+  </body>
+</html>