From 4058f3b8173f076dd2cdc429a724913e6cd463ba Mon Sep 17 00:00:00 2001
From: -k <slowdive@me.com>
Date: Tue, 18 Jun 2024 10:38:31 -0700
Subject: [PATCH] test: move `main`

---
 build.zig     | 15 +++++++++++----
 tests/cli.zig | 20 ++++++++++++++++++++
 2 files changed, 31 insertions(+), 4 deletions(-)
 create mode 100644 tests/cli.zig

diff --git a/build.zig b/build.zig
index 4ab8c20..479240e 100644
--- a/build.zig
+++ b/build.zig
@@ -41,8 +41,15 @@ pub fn build(b: *std.Build) void {
     const test_step = b.step("test", "Run all tests");
     test_step.dependOn(&run_unit_tests.step);
 
-    const test_ok = b.addRunArtifact(exe);
-    test_ok.addArgs(&.{"-t=short"});
-    test_ok.expectExitCode(0);
-    test_step.dependOn(&test_ok.step);
+    const test_options = b.addOptions();
+    test_options.addOptionPath("exe_path", exe.getEmittedBin());
+
+    const integration_tests = b.addTest(.{
+        .root_source_file = .{ .path = "./tests/cli.zig" },
+    });
+
+    integration_tests.root_module.addOptions("build_options", test_options);
+
+    const run_integration_tests = b.addRunArtifact(integration_tests);
+    test_step.dependOn(&run_integration_tests.step);
 }
diff --git a/tests/cli.zig b/tests/cli.zig
new file mode 100644
index 0000000..e7f6b14
--- /dev/null
+++ b/tests/cli.zig
@@ -0,0 +1,20 @@
+const std = @import("std");
+const build_options = @import("build_options");
+
+test "main" {
+    const exe_path = build_options.exe_path;
+    const argv = [_][]const u8{ exe_path, "--time=short" };
+    const proc = try std.ChildProcess.run(.{
+        .allocator = std.testing.allocator,
+        .argv = &argv,
+    });
+
+    defer std.testing.allocator.free(proc.stdout);
+    defer std.testing.allocator.free(proc.stderr);
+
+    const term = proc.term;
+
+    try std.testing.expectEqual(term, std.ChildProcess.Term{ .Exited = 0 });
+    try std.testing.expectEqual(proc.stderr.len, 0);
+    // ...
+}