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, 177 insertions, 0 deletions

diff --git a/tests/node_compat/test/parallel/test-stream-readable-unshift.js b/tests/node_compat/test/parallel/test-stream-readable-unshift.js
new file mode 100644
index 000000000..1303befa9
--- /dev/null
+++ b/tests/node_compat/test/parallel/test-stream-readable-unshift.js
@@ -0,0 +1,177 @@
+// deno-fmt-ignore-file
+// deno-lint-ignore-file
+
+// Copyright Joyent and Node contributors. All rights reserved. MIT license.
+// Taken from Node 18.12.1
+// This file is automatically generated by `tools/node_compat/setup.ts`. Do not modify this file manually.
+
+'use strict';
+
+const common = require('../common');
+const assert = require('assert');
+const { Readable } = require('stream');
+
+{
+  // Check that strings are saved as Buffer
+  const readable = new Readable({ read() {} });
+
+  const string = 'abc';
+
+  readable.on('data', common.mustCall((chunk) => {
+    assert(Buffer.isBuffer(chunk));
+    assert.strictEqual(chunk.toString('utf8'), string);
+  }, 1));
+
+  readable.unshift(string);
+
+}
+
+{
+  // Check that data goes at the beginning
+  const readable = new Readable({ read() {} });
+  const unshift = 'front';
+  const push = 'back';
+
+  const expected = [unshift, push];
+  readable.on('data', common.mustCall((chunk) => {
+    assert.strictEqual(chunk.toString('utf8'), expected.shift());
+  }, 2));
+
+
+  readable.push(push);
+  readable.unshift(unshift);
+}
+
+{
+  // Check that buffer is saved with correct encoding
+  const readable = new Readable({ read() {} });
+
+  const encoding = 'base64';
+  const string = Buffer.from('abc').toString(encoding);
+
+  readable.on('data', common.mustCall((chunk) => {
+    assert.strictEqual(chunk.toString(encoding), string);
+  }, 1));
+
+  readable.unshift(string, encoding);
+
+}
+
+{
+
+  const streamEncoding = 'base64';
+
+  function checkEncoding(readable) {
+
+    // chunk encodings
+    const encodings = ['utf8', 'binary', 'hex', 'base64'];
+    const expected = [];
+
+    readable.on('data', common.mustCall((chunk) => {
+      const { encoding, string } = expected.pop();
+      assert.strictEqual(chunk.toString(encoding), string);
+    }, encodings.length));
+
+    for (const encoding of encodings) {
+      const string = 'abc';
+
+      // If encoding is the same as the state.encoding the string is
+      // saved as is
+      const expect = encoding !== streamEncoding ?
+        Buffer.from(string, encoding).toString(streamEncoding) : string;
+
+      expected.push({ encoding, string: expect });
+
+      readable.unshift(string, encoding);
+    }
+  }
+
+  const r1 = new Readable({ read() {} });
+  r1.setEncoding(streamEncoding);
+  checkEncoding(r1);
+
+  const r2 = new Readable({ read() {}, encoding: streamEncoding });
+  checkEncoding(r2);
+
+}
+
+{
+  // Both .push & .unshift should have the same behaviour
+  // When setting an encoding, each chunk should be emitted with that encoding
+  const encoding = 'base64';
+
+  function checkEncoding(readable) {
+    const string = 'abc';
+    readable.on('data', common.mustCall((chunk) => {
+      assert.strictEqual(chunk, Buffer.from(string).toString(encoding));
+    }, 2));
+
+    readable.push(string);
+    readable.unshift(string);
+  }
+
+  const r1 = new Readable({ read() {} });
+  r1.setEncoding(encoding);
+  checkEncoding(r1);
+
+  const r2 = new Readable({ read() {}, encoding });
+  checkEncoding(r2);
+
+}
+
+{
+  // Check that ObjectMode works
+  const readable = new Readable({ objectMode: true, read() {} });
+
+  const chunks = ['a', 1, {}, []];
+
+  readable.on('data', common.mustCall((chunk) => {
+    assert.strictEqual(chunk, chunks.pop());
+  }, chunks.length));
+
+  for (const chunk of chunks) {
+    readable.unshift(chunk);
+  }
+}
+
+{
+
+  // Should not throw: https://github.com/nodejs/node/issues/27192
+  const highWaterMark = 50;
+  class ArrayReader extends Readable {
+    constructor(opt) {
+      super({ highWaterMark });
+      // The error happened only when pushing above hwm
+      this.buffer = new Array(highWaterMark * 2).fill(0).map(String);
+    }
+    _read(size) {
+      while (this.buffer.length) {
+        const chunk = this.buffer.shift();
+        if (!this.buffer.length) {
+          this.push(chunk);
+          this.push(null);
+          return true;
+        }
+        if (!this.push(chunk))
+          return;
+      }
+    }
+  }
+
+  function onRead() {
+    while (null !== (stream.read())) {
+      // Remove the 'readable' listener before unshifting
+      stream.removeListener('readable', onRead);
+      stream.unshift('a');
+      stream.on('data', (chunk) => {
+        console.log(chunk.length);
+      });
+      break;
+    }
+  }
+
+  const stream = new ArrayReader();
+  stream.once('readable', common.mustCall(onRead));
+  stream.on('end', common.mustCall());
+
+}