add LSP server life-cycle test

Author: Techatrix

src/Server.zig

@@ -1804,23 +1804,6 @@ fn pushJob(server: *Server, job: Job) error{OutOfMemory}!void {
     };
 }
 
-test {
-    const gpa = std.testing.allocator;
-    var config: Config = .{};
-    defer @import("legacy_json.zig").parseFree(Config, gpa, config);
-    var server = try Server.create(gpa, &config, null);
-    defer server.destroy();
-
-    var arena_allocator = std.heap.ArenaAllocator.init(gpa);
-    defer arena_allocator.deinit();
-    const arena = arena_allocator.allocator();
-
-    _ = try server.sendRequestSync(arena, "initialize", .{ .capabilities = .{} });
-    _ = try server.sendNotificationSync(arena, "initialized", .{});
-    _ = try server.sendRequestSync(arena, "shutdown", {});
-    _ = try server.sendNotificationSync(arena, "exit", {});
-}
-
 //
 // LSP helper functions
 //

tests/lifecycle.zig

@@ -0,0 +1,26 @@
+const std = @import("std");
+const zls = @import("zls");
+
+const allocator = std.testing.allocator;
+
+test "LSP lifecycle" {
+    var config: zls.Config = .{};
+    defer zls.legacy_json.parseFree(zls.Config, allocator, config);
+
+    var server = try zls.Server.create(allocator, &config, null);
+    defer server.destroy();
+
+    var arena_allocator = std.heap.ArenaAllocator.init(allocator);
+    defer arena_allocator.deinit();
+    const arena = arena_allocator.allocator();
+
+    try std.testing.expectEqual(zls.Server.Status.uninitialized, server.status);
+    _ = try server.sendRequestSync(arena, "initialize", .{ .capabilities = .{} });
+    try std.testing.expectEqual(zls.Server.Status.initializing, server.status);
+    try server.sendNotificationSync(arena, "initialized", .{});
+    try std.testing.expectEqual(zls.Server.Status.initialized, server.status);
+    _ = try server.sendRequestSync(arena, "shutdown", {});
+    try std.testing.expectEqual(zls.Server.Status.shutdown, server.status);
+    try server.sendNotificationSync(arena, "exit", {});
+    try std.testing.expectEqual(zls.Server.Status.exiting_success, server.status);
+}

tests/tests.zig

@@ -7,7 +7,7 @@ comptime {
     _ = @import("utility/uri.zig");
     _ = @import("utility/diff.zig");
 
-    // TODO Lifecycle Messages
+    _ = @import("lifecycle.zig");
 
     // TODO Document Synchronization