test(cli): add end-to-end integration tests for CLI commands

Add 23 integration tests using assert_cmd and predicates covering
about, validate, show, licenses, install, config, init, and
dump-autoload commands with shared test helpers and fixture projects.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/crates/mozart/tests/cli_dump_autoload.rs b/crates/mozart/tests/cli_dump_autoload.rs
new file mode 100644
index 0000000..ca592a3
--- /dev/null
+++ b/crates/mozart/tests/cli_dump_autoload.rs
@@ -0,0 +1,34 @@
+mod common;
+
+use predicates::str::contains;
+
+#[test]
+fn test_dump_autoload_dry_run() {
+    let project = common::copy_fixture_to_temp("minimal");
+    common::mozart_cmd()
+        .arg("dump-autoload")
+        .arg("--dry-run")
+        .arg("--working-dir")
+        .arg(project.path())
+        .assert()
+        .success()
+        .stderr(contains("Dry run"));
+}
+
+#[test]
+fn test_dump_autoload_does_not_write_in_dry_run() {
+    let project = common::copy_fixture_to_temp("minimal");
+    let vendor_dir = project.path().join("vendor");
+    common::mozart_cmd()
+        .arg("dump-autoload")
+        .arg("--dry-run")
+        .arg("--working-dir")
+        .arg(project.path())
+        .assert()
+        .success();
+    // In dry-run mode, no vendor directory should have been created
+    assert!(
+        !vendor_dir.exists(),
+        "vendor/ should not be created in dry-run mode"
+    );
+}