Add live browser test runner to /specs/testing page

sx-browser.js evaluates test.sx directly in the browser — click
"Run 81 tests" to see SX test itself. Uses the same Sx global that
rendered the page.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
2026-03-07 11:00:37 +00:00
parent e9d86d628b
commit 7eb158c79f
2 changed files with 124 additions and 3 deletions

View File

@@ -0,0 +1,96 @@
// sx-test-runner.js — Run test.sx in the browser using sx-browser.js.
// Loaded on the /specs/testing page. Uses the Sx global.
(function() {
var NIL = Sx.NIL;
function isNil(x) { return x === NIL || x === null || x === undefined; }
function deepEqual(a, b) {
if (a === b) return true;
if (isNil(a) && isNil(b)) return true;
if (typeof a !== typeof b) return false;
if (Array.isArray(a) && Array.isArray(b)) {
if (a.length !== b.length) return false;
for (var i = 0; i < a.length; i++) if (!deepEqual(a[i], b[i])) return false;
return true;
}
if (a && typeof a === "object" && b && typeof b === "object") {
var ka = Object.keys(a), kb = Object.keys(b);
if (ka.length !== kb.length) return false;
for (var j = 0; j < ka.length; j++) if (!deepEqual(a[ka[j]], b[ka[j]])) return false;
return true;
}
return false;
}
window.sxRunTests = function(srcId, outId, btnId) {
var src = document.getElementById(srcId).textContent;
var out = document.getElementById(outId);
var btn = document.getElementById(btnId);
var stack = [], passed = 0, failed = 0, num = 0, lines = [];
var env = {
"try-call": function(thunk) {
try {
Sx.eval([thunk], env);
return { ok: true };
} catch(e) {
return { ok: false, error: e.message || String(e) };
}
},
"report-pass": function(name) {
num++; passed++;
lines.push("ok " + num + " - " + stack.concat([name]).join(" > "));
},
"report-fail": function(name, error) {
num++; failed++;
lines.push("not ok " + num + " - " + stack.concat([name]).join(" > "));
lines.push(" # " + error);
},
"push-suite": function(name) { stack.push(name); },
"pop-suite": function() { stack.pop(); },
"equal?": function(a, b) { return deepEqual(a, b); },
"eq?": function(a, b) { return a === b; },
"boolean?": function(x) { return typeof x === "boolean"; },
"string-length": function(s) { return String(s).length; },
"substring": function(s, start, end) { return String(s).slice(start, end); },
"string-contains?": function(s, n) { return String(s).indexOf(n) !== -1; },
"upcase": function(s) { return String(s).toUpperCase(); },
"downcase": function(s) { return String(s).toLowerCase(); },
"reverse": function(c) { return c ? c.slice().reverse() : []; },
"flatten": function(c) {
var r = [];
for (var i = 0; i < (c||[]).length; i++) {
if (Array.isArray(c[i])) for (var j = 0; j < c[i].length; j++) r.push(c[i][j]);
else r.push(c[i]);
}
return r;
},
"has-key?": function(d, k) { return d && typeof d === "object" && k in d; },
"append": function(c, x) { return Array.isArray(x) ? (c||[]).concat(x) : (c||[]).concat([x]); },
};
try {
var t0 = performance.now();
var exprs = Sx.parseAll(src);
for (var i = 0; i < exprs.length; i++) Sx.eval(exprs[i], env);
var elapsed = Math.round(performance.now() - t0);
lines.push("");
lines.push("1.." + num);
lines.push("# tests " + (passed + failed));
lines.push("# pass " + passed);
if (failed > 0) lines.push("# fail " + failed);
lines.push("# time " + elapsed + "ms");
} catch(e) {
lines.push("");
lines.push("FATAL: " + (e.message || String(e)));
}
out.textContent = lines.join("\n");
out.style.display = "block";
btn.textContent = passed + "/" + (passed + failed) + " passed" + (failed === 0 ? "" : " (" + failed + " failed)");
btn.className = failed > 0
? "px-4 py-2 rounded-md bg-red-600 text-white font-medium text-sm cursor-default"
: "px-4 py-2 rounded-md bg-green-600 text-white font-medium text-sm cursor-default";
};
})();

View File

@@ -22,6 +22,29 @@
(code :class "text-violet-700 text-sm" "if")
" works. No code generation, no intermediate files — the evaluator runs the spec."))
;; Live test runner
(div :class "space-y-3"
(h2 :class "text-2xl font-semibold text-stone-800" "Run in browser")
(p :class "text-stone-600"
"This page loaded "
(code :class "text-violet-700 text-sm" "sx-browser.js")
" to render itself. The same evaluator can run "
(code :class "text-violet-700 text-sm" "test.sx")
" right here — SX testing SX, in your browser:")
(div :class "flex items-center gap-4"
(button :id "test-btn"
:class "px-4 py-2 rounded-md bg-violet-600 text-white font-medium text-sm hover:bg-violet-700 cursor-pointer"
:onclick "sxRunTests('test-sx-source','test-output','test-btn')"
"Run 81 tests"))
(pre :id "test-output"
:class "text-sm font-mono bg-stone-900 text-green-400 rounded-lg p-4 overflow-x-auto max-h-96 overflow-y-auto"
:style "display:none"
"")
;; Hidden: raw test.sx source for the browser runner
(textarea :id "test-sx-source" :style "display:none" spec-source)
;; Load the test runner script
(script :src (asset-url "/scripts/sx-test-runner.js")))
;; How it works
(div :class "space-y-3"
(h2 :class "text-2xl font-semibold text-stone-800" "Architecture")
@@ -30,6 +53,8 @@
(div :class "not-prose bg-stone-100 rounded-lg p-5 mx-auto max-w-3xl"
(pre :class "text-sm leading-relaxed whitespace-pre-wrap break-words font-mono text-stone-700"
"test.sx Self-executing: macros + helpers + 81 tests
|
|--- browser sx-browser.js evaluates test.sx in this page
|
|--- run.js Injects 5 platform fns, evaluates test.sx
| |
@@ -39,7 +64,7 @@
|
+-> evaluator.py Python evaluator
Platform functions:
Platform functions (5 total — everything else is pure SX):
try-call (thunk) -> {:ok true} | {:ok false :error \"msg\"}
report-pass (name) -> output pass
report-fail (name error) -> output fail
@@ -121,11 +146,11 @@ Platform functions:
(h2 :class "text-lg font-semibold text-blue-900" "What this proves")
(ol :class "list-decimal list-inside text-blue-800 space-y-2 text-sm"
(li "The test spec is " (strong "written in SX") " and " (strong "executed by SX") " — no code generation")
(li "The same 81 tests run on " (strong "both Python and JavaScript") " from the same file")
(li "The same 81 tests run on " (strong "Python, Node.js, and in the browser") " from the same file")
(li "Each host provides only " (strong "5 platform functions") " — everything else is pure SX")
(li "Adding a new host means implementing 5 functions, not rewriting tests")
(li "Platform divergences (truthiness of 0, [], \"\") are " (strong "documented, not hidden"))
(li "The spec is " (strong "executable") " — it doesn't just describe behavior, it verifies it")))
(li "The spec is " (strong "executable") " — click the button above to prove it")))
;; Test suites
(div :class "space-y-3"