refactor(crypto test): use wpt to test crypto api (#5471)

Closes #4268

Co-authored-by: Agnès Toulet <35176601+AgnesToulet@users.noreply.github.com>

Author: bjchris32

internal/js/modules/k6/webcrypto/tests/crypto_test.go

@@ -30,6 +30,20 @@ func TestWebPlatformTestSuite(t *testing.T) {
 		// if empty, no function will be called
 		callFn string
 	}{
+		// test cases for crypto api
+		{
+			catalog: "",
+			files: []string{
+				"getRandomValues.any.js",
+			},
+		},
+		{
+			catalog: "",
+			files: []string{
+				"randomUUID.https.any.js",
+			},
+		},
+		// test cases for subtle crypto api
 		{
 			catalog: "digest",
 			files: []string{

internal/js/modules/k6/webcrypto/tests/subtle_crypto_test.go

@@ -0,0 +1,45 @@
+diff --git a/WebCryptoAPI/getRandomValues.any.js b/WebCryptoAPI/getRandomValues.any.js
+index 574134eb7..128c805a5 100644
+--- a/WebCryptoAPI/getRandomValues.any.js
++++ b/WebCryptoAPI/getRandomValues.any.js
+@@ -1,14 +1,31 @@
++// k6 throws GoError instead of DOMException, so we need to monkey patch.
++const originalAssertThrowsDom = self.assert_throws_dom;
++self.assert_throws_dom = function(expectedErrorName, func, description) {
++    try {
++        func();
++    } catch (e) {
++        const isGoError = (typeof e === "object") && (e.name === "GoError");
++        const msg = isGoError ? (e.message || "") : e.toString();
++        if (msg.includes(expectedErrorName)) {
++            return; // Treat as correct
++        }
++    }
++
++    return originalAssertThrowsDom(expectedErrorName, func, description);
++}
++
+ // Step 1.
+-test(function() {
+-    assert_throws_dom("TypeMismatchError", function() {
+-        self.crypto.getRandomValues(new Float16Array(6))
+-    }, "Float16Array")
++// Float16Array is not supported in k6
++// test(function() {
++//     assert_throws_dom("TypeMismatchError", function() {
++//         self.crypto.getRandomValues(new Float16Array(6))
++//     }, "Float16Array")
+ 
+-    assert_throws_dom("TypeMismatchError", function() {
+-        const len = 65536 / Float16Array.BYTES_PER_ELEMENT + 1;
+-        self.crypto.getRandomValues(new Float16Array(len));
+-    }, "Float16Array (too long)")
+-}, "Float16 arrays");
++//     assert_throws_dom("TypeMismatchError", function() {
++//         const len = 65536 / Float16Array.BYTES_PER_ELEMENT + 1;
++//         self.crypto.getRandomValues(new Float16Array(len));
++//     }, "Float16Array (too long)")
++// }, "Float16 arrays");
+ 
+ test(function() {
+     assert_throws_dom("TypeMismatchError", function() {