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allow downstream projects to use test harness

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This commit is contained in:
Emil Lerch 2024-05-10 13:25:22 -07:00
parent 26d97f2fec
commit 1ed36376d8
Signed by untrusted user: lobo
GPG Key ID: A7B62D657EF764F8
2 changed files with 13 additions and 15 deletions
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6
build.zig
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@ -24,6 +24,12 @@ pub fn build(b: *std.Build) !void {
.optimize = optimize, .optimize = optimize,
}); });
_ = b.addModule("lambda_runtime", .{
.root_source_file = b.path("src/lambda.zig"),
.target = target,
.optimize = optimize,
});
// This declares intent for the library to be installed into the standard // This declares intent for the library to be installed into the standard
// location when the user invokes the "install" step (the default step when // location when the user invokes the "install" step (the default step when
// running `zig build`). // running `zig build`).

22
src/lambda.zig
View File

@ -1,7 +1,7 @@
const std = @import("std"); const std = @import("std");
const builtin = @import("builtin"); const builtin = @import("builtin");
const HandlerFn = *const fn (std.mem.Allocator, []const u8) anyerror![]const u8; pub const HandlerFn = *const fn (std.mem.Allocator, []const u8) anyerror![]const u8;
const log = std.log.scoped(.lambda); const log = std.log.scoped(.lambda);
@ -355,15 +355,8 @@ fn handler(allocator: std.mem.Allocator, event_data: []const u8) ![]const u8 {
_ = allocator; _ = allocator;
return event_data; return event_data;
} }
fn test_run(allocator: std.mem.Allocator, event_handler: HandlerFn) !std.Thread {
return try std.Thread.spawn(
.{},
run,
.{ allocator, event_handler },
);
}
fn lambda_request(allocator: std.mem.Allocator, request: []const u8, request_count: usize) ![]u8 { pub fn test_lambda_request(allocator: std.mem.Allocator, request: []const u8, request_count: usize, handler_fn: HandlerFn) ![]u8 {
var arena = std.heap.ArenaAllocator.init(allocator); var arena = std.heap.ArenaAllocator.init(allocator);
defer arena.deinit(); defer arena.deinit();
const aa = arena.allocator(); const aa = arena.allocator();
@ -405,9 +398,8 @@ fn lambda_request(allocator: std.mem.Allocator, request: []const u8, request_cou
// so we'll use the arena allocator // so we'll use the arena allocator
defer server_thread.join(); // we'll be shutting everything down before we exit defer server_thread.join(); // we'll be shutting everything down before we exit
// Now we need to start the lambda framework, following a siimilar pattern // Now we need to start the lambda framework
const lambda_thread = try test_run(allocator, handler); // We want our function under test to report leaks try run(allocator, handler_fn); // We want our function under test to report leaks
lambda_thread.join();
return try allocator.dupe(u8, server_request_aka_lambda_response); return try allocator.dupe(u8, server_request_aka_lambda_response);
} }
@ -422,7 +414,7 @@ test "basic request" {
const expected_response = const expected_response =
\\{"foo": "bar", "baz": "qux"} \\{"foo": "bar", "baz": "qux"}
; ;
const lambda_response = try lambda_request(allocator, request, 1); const lambda_response = try test_lambda_request(allocator, request, 1, handler);
defer deinit(); defer deinit();
defer allocator.free(lambda_response); defer allocator.free(lambda_response);
try std.testing.expectEqualStrings(expected_response, lambda_response); try std.testing.expectEqualStrings(expected_response, lambda_response);
@ -439,8 +431,8 @@ test "several requests do not fail" {
const expected_response = const expected_response =
\\{"foo": "bar", "baz": "qux"} \\{"foo": "bar", "baz": "qux"}
; ;
const lambda_response = try lambda_request(allocator, request, 5); const lambda_response = try test_lambda_request(allocator, request, 5);
defer deinit(); defer deinit();
defer allocator.free(lambda_response); defer allocator.free(lambda_response);
try std.testing.expectEqualStrings(expected_response, lambda_response); try std.testing.expectEqualStrings(expected_response, lambda_response, handler);
} }