Run qemu test on command line, add it to travis

.travis-run-unit-qemu.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -e
+mkdir -p images
+(cd images && curl --compressed -O https://copy.sh/v86/images/linux3.iso)
+make build/libv86.js
+(cd tests/qemu && make test-i386)
+./tests/qemu/run.js > result
+./tests/qemu/test-i386 > reference
+diff result reference

.travis.yml

@@ -12,3 +12,4 @@ script:
 env:
     - TEST_SUITE=unit
     - TEST_SUITE=integration
+    - TEST_SUITE=unit-qemu

tests/qemu/run.js

@@ -0,0 +1,66 @@
+#!/usr/bin/env node
+"use strict";
+
+var V86 = require("../../build/libv86.js").V86;
+var fs = require("fs");
+
+var test_executable = new Uint8Array(fs.readFileSync(__dirname + "/test-i386"));
+
+var emulator = new V86({
+    bios: { url: __dirname + "/../../bios/seabios.bin" },
+    vga_bios: { url: __dirname + "/../../bios/vgabios.bin" },
+    cdrom: { url: __dirname + "/../../images/linux3.iso" },
+    autostart: true,
+    memory_size: 32 * 1024 * 1024,
+    filesystem: {},
+});
+
+emulator.bus.register("emulator-started", function()
+{
+    console.error("Booting now, please stand by");
+    emulator.create_file("test-i386", test_executable);
+});
+
+var ran_command = false;
+var line = "";
+
+emulator.add_listener("serial0-output-char", function(chr)
+{
+    if(chr < " " && chr !== "\n" && chr !== "\t" || chr > "~")
+    {
+        return;
+    }
+
+    if(chr === "\n")
+    {
+        var new_line = line;
+        console.error("Serial: %s", line);
+        line = "";
+    }
+    else
+    {
+        line += chr;
+    }
+
+    if(!ran_command && line.endsWith("~% "))
+    {
+        ran_command = true;
+        emulator.serial0_send("chmod +x /mnt/test-i386\n");
+        emulator.serial0_send("/mnt/test-i386 > /mnt/result\n");
+        emulator.serial0_send("echo test fini''shed\n");
+    }
+
+    if(new_line && new_line.includes("test finished"))
+    {
+        console.error("Done. Reading result ...");
+
+        emulator.read_file("/result", function(err, data)
+            {
+                if(err) throw err;
+                console.error("Got result, writing to stdout");
+                process.stdout.write(new Buffer(data));
+                emulator.stop();
+            });
+    }
+
+});