Create integration test

tests/api_integration/lib.zig

@@ -0,0 +1,36 @@
+const std = @import("std");
+const main = @import("main");
+
+const cluster_host = "test_host";
+const test_config = .{
+    .cluster_host = cluster_host,
+    .db = .{
+        .sqlite = .{
+            .db_file = ":memory:",
+        },
+    },
+};
+
+const ApiSource = main.api.ApiSource;
+const root_password = "password";
+const random_seed = 1234;
+
+fn makeApi(alloc: std.mem.Allocator) !ApiSource {
+    main.api.initThreadPrng(random_seed);
+
+    const source = try ApiSource.init(alloc, test_config, root_password);
+    return source;
+}
+
+test "login as root" {
+    const alloc = std.testing.allocator;
+    var arena = std.heap.ArenaAllocator.init(alloc);
+    defer arena.deinit();
+    var src = try makeApi(alloc);
+
+    std.debug.print("\npassword: {s}\n", .{root_password});
+    var api = try src.connectUnauthorized(cluster_host, arena.allocator());
+    defer api.close();
+
+    _ = try api.login("root", root_password);
+}