[Move/Examples] Switch to datatest (#18813)

## Description
Use `datatest-stable` to find all the Move examples we might want to
build and test, instead of stashing this away in a rust test.

## Test plan

```
sui$ cargo nextest run -p sui-framework-tests --test move_tests
```

+ CI

Closes #18802 

---

## Release notes

Check each box that your changes affect. If none of the boxes relate to
your changes, release notes aren't required.

For each box you select, include information after the relevant heading
that describes the impact of your changes that a user might notice and
any actions they must take to implement updates.

- [ ] Protocol: 
- [ ] Nodes (Validators and Full nodes): 
- [ ] Indexer: 
- [ ] JSON-RPC: 
- [ ] GraphQL: 
- [ ] CLI: 
- [ ] Rust SDK:
- [ ] REST API:

.github/workflows/rust.yml

@@ -262,7 +262,7 @@ jobs:
       - uses: taiki-e/install-action@nextest
       - name: Run move tests
         run: |
-          cargo nextest run -p sui-framework-tests -- unit_tests::
+          cargo nextest run -p sui-framework-tests --test move_tests
 
   # # Disabled
   # rosetta-validation:

crates/sui-framework-tests/Cargo.toml

@@ -7,7 +7,12 @@ description = "Runs Move tests for sui-framework"
 license = "Apache-2.0"
 publish = false
 
+[[test]]
+name = "move_tests"
+harness = false
+
 [dev-dependencies]
+datatest-stable.workspace = true
 prometheus.workspace = true
 
 sui-framework.workspace = true

crates/sui-framework-tests/src/lib.rs

@@ -1,8 +1,5 @@
 // Copyright (c) Mysten Labs, Inc.
 // SPDX-License-Identifier: Apache-2.0
 
-#[cfg(test)]
-mod unit_tests;
-
 #[cfg(test)]
 mod metered_verifier;

crates/sui-framework-tests/tests/move_tests.rs

@@ -0,0 +1,80 @@
+// Copyright (c) Mysten Labs, Inc.
+// SPDX-License-Identifier: Apache-2.0
+
+use std::path::Path;
+
+use move_cli::base::test::UnitTestResult;
+use move_package::LintFlag;
+use move_unit_test::UnitTestingConfig;
+use sui_move::unit_test::run_move_unit_tests;
+use sui_move_build::BuildConfig;
+
+pub(crate) const EXAMPLES: &str = concat!(env!("CARGO_MANIFEST_DIR"), "/../../examples");
+pub(crate) const FRAMEWORK: &str = concat!(
+    env!("CARGO_MANIFEST_DIR"),
+    "/../../crates/sui-framework/packages"
+);
+
+/// Ensure packages build outside of test mode.
+pub(crate) fn build(path: &Path) -> datatest_stable::Result<()> {
+    let Some(path) = path.parent() else {
+        panic!("No parent for Move.toml file at: {}", path.display());
+    };
+
+    let mut config = BuildConfig::new_for_testing();
+    config.config.dev_mode = true;
+    config.run_bytecode_verifier = true;
+    config.print_diags_to_stderr = true;
+    config.config.warnings_are_errors = true;
+    config.config.silence_warnings = false;
+    config.config.lint_flag = LintFlag::LEVEL_DEFAULT;
+
+    config
+        .build(path)
+        .unwrap_or_else(|e| panic!("Building package {}.\nWith error {e}", path.display()));
+
+    Ok(())
+}
+
+/// Ensure package sbuild under test mode and all the tests pass.
+pub(crate) fn tests(path: &Path) -> datatest_stable::Result<()> {
+    let Some(path) = path.parent() else {
+        panic!("No parent for Move.toml file at: {}", path.display());
+    };
+
+    let mut config = BuildConfig::new_for_testing();
+
+    config.config.dev_mode = true;
+    config.config.test_mode = true;
+    config.run_bytecode_verifier = true;
+    config.print_diags_to_stderr = true;
+    config.config.warnings_are_errors = true;
+    config.config.silence_warnings = false;
+    config.config.lint_flag = LintFlag::LEVEL_DEFAULT;
+
+    let move_config = config.config.clone();
+    let mut testing_config = UnitTestingConfig::default_with_bound(Some(3_000_000));
+    testing_config.filter = std::env::var("FILTER").ok().map(|s| s.to_string());
+
+    assert_eq!(
+        run_move_unit_tests(path, move_config, Some(testing_config), false).unwrap(),
+        UnitTestResult::Success
+    );
+
+    Ok(())
+}
+
+datatest_stable::harness!(
+    build,
+    EXAMPLES,
+    r".*/Move.toml$",
+    tests,
+    EXAMPLES,
+    r".*/Move.toml$",
+    build,
+    FRAMEWORK,
+    r".*/Move.toml$",
+    tests,
+    FRAMEWORK,
+    r".*/Move.toml$",
+);