Unlucky Launcher v0.0.1-alpha

Rust 原生单文件 Minecraft 启动器：CLI 完整可用（install/launch/accounts/java/diagnose/agent），
MCP server 接入外部 Agent 工具，GUI 开发中。

crates/cli/tests/java_test.rs

@@ -0,0 +1,197 @@
+//! `ull java list` / `ull java install` / `ull launch` 的 Java 选择（D13）CLI 端。
+//!
+//! 不联网：`install` 只测参数校验与稳定错误码；`launch --dry-run` 断言 `java` 块的结构
+//! 与「实例覆盖优先」——真正的下载/解压由 `core::game::java` 的测试与本机验收覆盖。
+
+#[path = "support/mod.rs"]
+mod support;
+
+use support::{parse_json, run_cli, write_version, TempDir};
+
+/// 一个可组装的版本 id。
+const VERSION: &str = "1.20.1";
+
+#[test]
+fn java_list_reports_the_managed_root() {
+    let dir = TempDir::new("java-list");
+    let (code, stdout, stderr) = run_cli(&["--json", "--data-dir", &dir.arg(), "java", "list"]);
+    assert_eq!(code, 0, "stderr: {stderr}");
+    let envelope = parse_json(&stdout);
+    let json = &envelope["data"];
+    assert!(
+        json["managed_root"]
+            .as_str()
+            .is_some_and(|root| root.ends_with("java-managed")),
+        "managed_root 应是 data/java-managed：{json}"
+    );
+    // D23：多根扫描 + 落点模式要说清（`--data-dir` 是 custom 数据模式 → portable 落点）。
+    assert!(
+        json["managed_roots"]
+            .as_array()
+            .is_some_and(|roots| !roots.is_empty()),
+        "{json}"
+    );
+    assert_eq!(json["install"]["mode"], "portable", "{json}");
+    assert!(
+        json["install"]["root"]
+            .as_str()
+            .is_some_and(|root| root.ends_with("java-managed")),
+        "落点根应是数据根里的 java-managed：{json}"
+    );
+    assert!(json["candidates"].is_array(), "{json}");
+}
+
+#[test]
+fn java_vendors_lists_the_four_vendors_with_the_current_order() {
+    let dir = TempDir::new("java-vendors");
+    let (code, stdout, stderr) = run_cli(&["--json", "--data-dir", &dir.arg(), "java", "vendors"]);
+    assert_eq!(code, 0, "stderr: {stderr}");
+    let envelope = parse_json(&stdout);
+    let json = &envelope["data"];
+    let order: Vec<&str> = json["order"]
+        .as_array()
+        .expect("order 数组")
+        .iter()
+        .filter_map(|item| item.as_str())
+        .collect();
+    assert_eq!(order.len(), 4, "{json}");
+    assert!(order.contains(&"temurin"), "{json}");
+    assert!(order.contains(&"oracle"), "{json}");
+    assert!(order.contains(&"microsoft"), "{json}");
+    assert!(order.contains(&"zulu"), "{json}");
+    // 本机时区/语言决定 domestic/global，两种默认序都合法，但来源必须明示。
+    let source = json["priority_source"].as_str().unwrap_or("?");
+    assert_eq!(
+        source, "region_default",
+        "没设 java.vendorPriority 时：{json}"
+    );
+    let vendors = json["vendors"].as_array().expect("vendors 数组");
+    assert_eq!(vendors.len(), 4);
+    let microsoft = vendors
+        .iter()
+        .find(|row| row["vendor"] == "microsoft")
+        .expect("应有 microsoft 行");
+    assert_eq!(
+        microsoft["supported"].as_array().map(Vec::len),
+        Some(4),
+        "MS 只发 25/21/17/11：{microsoft}"
+    );
+    assert!(
+        microsoft["sources"]
+            .as_array()
+            .is_some_and(|sources| !sources.is_empty()),
+        "MS 的源（aka.ms → VS CDN）要列出来：{microsoft}"
+    );
+}
+
+#[test]
+fn java_install_rejects_an_unknown_vendor_without_network() {
+    let dir = TempDir::new("java-vendor-bad");
+    let (code, stdout, _stderr) = run_cli(&[
+        "--json",
+        "--data-dir",
+        &dir.arg(),
+        "java",
+        "install",
+        "21",
+        "--vendor",
+        "graalvm",
+    ]);
+    assert_eq!(code, 1);
+    let envelope = parse_json(&stdout);
+    assert_eq!(envelope["error"]["code"], "usage", "{envelope}");
+}
+
+#[test]
+fn java_install_rejects_an_absurd_major_without_network() {
+    let dir = TempDir::new("java-install");
+    let (code, stdout, _stderr) =
+        run_cli(&["--json", "--data-dir", &dir.arg(), "java", "install", "4"]);
+    assert_eq!(code, 1);
+    let envelope = parse_json(&stdout);
+    assert_eq!(envelope["error"]["code"], "usage", "{envelope}");
+}
+
+#[test]
+fn launch_dry_run_reports_the_java_requirement_of_the_version() {
+    let dir = TempDir::new("java-launch");
+    write_version(dir.path(), VERSION);
+    let (code, stdout, stderr) = run_cli(&[
+        "--json",
+        "--data-dir",
+        &dir.arg(),
+        "launch",
+        VERSION,
+        "--dry-run",
+    ]);
+    assert_eq!(code, 0, "stderr: {stderr}");
+    let envelope = parse_json(&stdout);
+    let json = &envelope["data"];
+    let java = &json["java"];
+    // 1.20.1 的清单没写 javaVersion → 静态表兜底 17。
+    assert_eq!(java["required_major"], 17, "{json}");
+    assert_eq!(java["requirement_source"], "table", "{json}");
+    assert_eq!(json["version_id"], VERSION);
+    // `source` 只可能是探测到的来源之一（本机未必装了 Java）。
+    let source = java["source"].as_str().unwrap_or("none");
+    assert!(
+        ["instance", "managed", "JAVA_HOME", "PATH", "none"].contains(&source),
+        "意外的来源：{source}"
+    );
+}
+
+#[test]
+fn instance_java_override_wins_over_the_system_java() {
+    let dir = TempDir::new("java-override");
+    write_version(dir.path(), VERSION);
+    // 故意给一个不存在的路径：只要能进 `source=instance` 就说明覆盖优先级生效
+    // （探测失败只影响 major，不该把用户指定的路径换成系统 Java）。
+    let fake = dir.path().join("some-jdk").join("bin").join("java");
+    let (code, stdout, stderr) = run_cli(&[
+        "--json",
+        "--data-dir",
+        &dir.arg(),
+        "launch",
+        VERSION,
+        "--dry-run",
+        "--java",
+        &fake.display().to_string(),
+    ]);
+    assert_eq!(code, 0, "stderr: {stderr}");
+    let envelope = parse_json(&stdout);
+    let json = &envelope["data"];
+    assert_eq!(json["java"]["source"], "instance", "{json}");
+    assert_eq!(
+        json["java"]["binary"].as_str(),
+        Some(fake.display().to_string().as_str())
+    );
+}
+
+#[test]
+fn legacy_version_requires_java_8_and_flags_a_newer_runtime() {
+    let dir = TempDir::new("java-legacy");
+    write_version(dir.path(), "1.12.2");
+    let (code, stdout, stderr) = run_cli(&[
+        "--json",
+        "--data-dir",
+        &dir.arg(),
+        "launch",
+        "1.12.2",
+        "--dry-run",
+    ]);
+    assert_eq!(code, 0, "stderr: {stderr}");
+    let envelope = parse_json(&stdout);
+    let json = &envelope["data"];
+    assert_eq!(json["java"]["required_major"], 8, "{json}");
+    assert_eq!(json["java"]["required"], "Java 8", "{json}");
+    // 本机若有比 8 新的 Java，必须给出 java_too_new 告警（不能只靠「最低版本」）。
+    if let Some(code) = json["java"]["mismatch"]["code"].as_str() {
+        assert!(code == "java_too_new" || code == "java_too_old", "{json}");
+        assert!(
+            json["warnings"]
+                .as_array()
+                .is_some_and(|warnings| !warnings.is_empty()),
+            "不符时必须进 warnings：{json}"
+        );
+    }
+}