chore: move cli/tests/ -> tests/ (#22369)

This looks like a massive PR, but it's only a move from cli/tests ->
tests, and updates of relative paths for files.

This is the first step towards aggregate all of the integration test
files under tests/, which will lead to a set of integration tests that
can run without the CLI binary being built.

While we could leave these tests under `cli`, it would require us to
keep a more complex directory structure for the various test runners. In
addition, we have a lot of complexity to ignore various test files in
the `cli` project itself (cargo publish exclusion rules, autotests =
false, etc).

And finally, the `tests/` folder will eventually house the `test_ffi`,
`test_napi` and other testing code, reducing the size of the root repo
directory.

For easier review, the extremely large and noisy "move" is in the first
commit (with no changes -- just a move), while the remainder of the
changes to actual files is in the second commit.

1 files changed, 38 insertions, 0 deletions

diff --git a/tests/testdata/benches/text_decoder_perf.js b/tests/testdata/benches/text_decoder_perf.js
new file mode 100644
index 000000000..2e52b1f8b
--- /dev/null
+++ b/tests/testdata/benches/text_decoder_perf.js
@@ -0,0 +1,38 @@
+const mixed = new TextEncoder().encode("@Ā๐😀");
+
+function generateRandom(bytes) {
+  const result = new Uint8Array(bytes);
+  let i = 0;
+  while (i < bytes) {
+    const toAdd = Math.floor(Math.random() * Math.min(4, bytes - i));
+    switch (toAdd) {
+      case 0:
+        result[i] = mixed[0];
+        i++;
+        break;
+      case 1:
+        result[i] = mixed[1];
+        result[i + 1] = mixed[2];
+        i += 2;
+        break;
+      case 2:
+        result[i] = mixed[3];
+        result[i + 1] = mixed[4];
+        result[i + 2] = mixed[5];
+        i += 3;
+        break;
+      case 3:
+        result[i] = mixed[6];
+        result[i + 1] = mixed[7];
+        result[i + 2] = mixed[8];
+        result[i + 3] = mixed[9];
+        i += 4;
+        break;
+    }
+  }
+  return result;
+}
+
+const randomData = generateRandom(1024);
+const decoder = new TextDecoder();
+for (let i = 0; i < 10_000; i++) decoder.decode(randomData);