Add env config and git test

src/env.zig

@@ -0,0 +1,28 @@
+const std = @import("std");
+
+pub const Env = struct {
+    github_token: ?[]const u8,
+    pub fn init(env_map: *const std.process.Environ.Map) !Env {
+        const github_token = env_map.get("GITHUB_TOKEN") orelse null;
+        return .{ .github_token = github_token };
+    }
+};
+
+test "Validate that missing github token is null" {
+    const allocator = std.testing.allocator;
+    var env_map = std.process.Environ.Map.init(allocator);
+    defer env_map.deinit();
+
+    const env: Env = try .init(&env_map);
+    try std.testing.expect(env.github_token == null);
+}
+
+test "Validate that present github token isn't null" {
+    const allocator = std.testing.allocator;
+    var env_map = std.process.Environ.Map.init(allocator);
+    try env_map.put("GITHUB_TOKEN", "some_token");
+    defer env_map.deinit();
+
+    const env: Env = try .init(&env_map);
+    try std.testing.expect(std.mem.eql(u8, env.github_token.?, "some_token"));
+}

src/http_utils/http_client_wrapper.zig

@@ -1,12 +1,12 @@
 const std = @import("std");
 
 const HttpError = error{UnexpectedStatus};
-const HttpClientWrapper = @This();
+pub const HttpClientWrapper = @This();
 
 client: std.http.Client,
 
 const ResponseOptions = struct {
-    token: ?[]u8 = null,
+    token: ?[]const u8 = null,
     extra_headers: []const std.http.Header = &.{},
 };
 

src/test_git.zig

@@ -0,0 +1,29 @@
+const env_config = @import("env.zig");
+const http_utils = @import("http_utils/http_client_wrapper.zig");
+const std = @import("std");
+
+test "Test get github file contents passing authorization and content-type" {
+    const io = std.Io.Threaded.global_single_threaded.io();
+    const allocator = std.testing.allocator;
+
+    const http_client: std.http.Client = .{ .allocator = allocator, .io = io };
+    var test_client: http_utils.HttpClientWrapper = .{ .client = http_client };
+    defer test_client.deinit();
+
+    var env_map = try std.process.Environ.createMap(std.testing.environ, allocator);
+    defer env_map.deinit();
+    const env: env_config.Env = try .init(&env_map);
+
+    const extra_headers: []const std.http.Header = &.{
+        .{ .name = "Accept", .value = "application/vnd.github.raw+json" },
+        .{ .name = "X-GitHub-Api-Version", .value = "2026-03-10" },
+    };
+    const response = try test_client.getRawResponse(
+        allocator,
+        "https://api.github.com/repos/aselimov/upvoters/contents/README.md",
+        .{ .token = env.github_token, .extra_headers = extra_headers },
+    );
+    defer allocator.free(response);
+
+    try std.testing.expect(std.mem.containsAtLeast(u8, response, 1, "upvoters"));
+}