1 files changed, 32 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/wasm-binary-sources.js b/js/src/jit-test/tests/debug/wasm-binary-sources.js
new file mode 100644
index 0000000000..4ed5b9fb50
--- /dev/null
+++ b/js/src/jit-test/tests/debug/wasm-binary-sources.js
@@ -0,0 +1,32 @@
+// |jit-test| skip-if: !wasmDebuggingEnabled()
+
+// Tests that wasm module scripts have access to binary sources.
+
+load(libdir + "asserts.js");
+load(libdir + "array-compare.js");
+
+var g = newGlobal({newCompartment: true});
+var dbg = new Debugger(g);
+
+var s;
+dbg.onNewScript = (script) => {
+  s = script;
+}
+
+g.eval(`o = new WebAssembly.Instance(new WebAssembly.Module(wasmTextToBinary('(module (func) (export "" (func 0)))')));`);
+assertEq(s.format, "wasm");
+
+var source = s.source;
+
+// The text is never generated with the native Debugger API.
+assertEq(source.text.includes('module'), false);
+
+g.eval(`o = new WebAssembly.Instance(new WebAssembly.Module(wasmTextToBinary('(module (func) (export "" (func 0)))')));`);
+assertEq(s.format, "wasm");
+
+var source2 = s.source;
+
+// The text is predefined if wasm binary sources are enabled.
+assertEq(source2.text, '[debugger missing wasm binary-to-text conversion]');
+// The binary contains Uint8Array which is equal to wasm bytecode;
+arraysEqual(source2.binary, wasmTextToBinary('(module (func) (export "" (func 0)))'));