From e514a3e79fb783333f3856d4cf1b56c822b97df0 Mon Sep 17 00:00:00 2001
From: Meghan Denny <hello@nektro.net>
Date: Sat, 15 Feb 2025 22:08:03 -0800
Subject: [PATCH] add tests and update to zig 0.13

---
 build.zig   | 27 +++++++++------------------
 src/lib.zig |  6 +++---
 test.zig    |  6 ++++++
 3 files changed, 18 insertions(+), 21 deletions(-)
 create mode 100644 test.zig

diff --git a/build.zig b/build.zig
index 9498f6603f7bc63d9cb80a27dd44427be2a4eb1d..629f32099d91efb146e1f88465f3060f00f2f4cc 100644
--- a/build.zig
+++ b/build.zig
@@ -6,26 +6,17 @@ pub fn build(b: *std.Build) void {
     const mode = b.option(std.builtin.Mode, "mode", "") orelse .Debug;
     const disable_llvm = b.option(bool, "disable_llvm", "use the non-llvm zig codegen") orelse false;
 
-    const exe = b.addExecutable(.{
-        .name = "zig-flag",
-        .root_source_file = b.path("src/main.zig"),
+    const tests = b.addTest(.{
+        .root_source_file = b.path("test.zig"),
         .target = target,
         .optimize = mode,
     });
-    deps.addAllTo(exe);
-    exe.use_llvm = !disable_llvm;
-    exe.use_lld = !disable_llvm;
-    b.installArtifact(exe);
+    deps.addAllTo(tests);
+    tests.use_llvm = !disable_llvm;
+    tests.use_lld = !disable_llvm;
 
-    const run_cmd = b.addRunArtifact(exe);
-    run_cmd.step.dependOn(b.getInstallStep());
-    if (b.args) |args| {
-        run_cmd.addArgs(args);
-    }
-
-    const run_step = b.step("run", "Run the app");
-    run_step.dependOn(&run_cmd.step);
-
-    const test_step = b.step("test", "dummy test step to pass CI checks");
-    _ = test_step;
+    const test_step = b.step("test", "Run all library tests");
+    const tests_run = b.addRunArtifact(tests);
+    tests_run.has_side_effects = true;
+    test_step.dependOn(&tests_run.step);
 }
diff --git a/src/lib.zig b/src/lib.zig
index 0d76cecff89f5c487a11667d982f1ce3b8c93a80..7c32ffe93cf64105119615873db5ebb6c38b11f7 100644
--- a/src/lib.zig
+++ b/src/lib.zig
@@ -67,7 +67,7 @@ pub fn parse(k: FlagDashKind) !std.process.ArgIterator {
             }
         }
         std.log.err("Unrecognized argument: {s}{s}", .{ dash, name });
-        std.os.exit(1);
+        std.posix.exit(1);
     }
     return argiter;
 }
@@ -78,7 +78,7 @@ pub fn parseEnv() !void {
     for (singles.keys(), singles.values()) |k, *v| {
         const u = try fixNameForEnv(alloc, k);
         defer alloc.free(u);
-        if (std.os.getenv(u)) |value| {
+        if (std.posix.getenv(u)) |value| {
             v.* = value;
         }
     }
@@ -89,7 +89,7 @@ pub fn parseEnv() !void {
             defer alloc.free(u);
             const w = try std.fmt.allocPrint(alloc, "{s}_{d}", .{ u, n });
             defer alloc.free(w);
-            if (std.os.getenv(w)) |value| {
+            if (std.posix.getenv(w)) |value| {
                 try v.append(value);
                 continue;
             }
diff --git a/test.zig b/test.zig
new file mode 100644
index 0000000000000000000000000000000000000000..d5a1e36edd2a079c6c9919c5023024ce02e569cf
--- /dev/null
+++ b/test.zig
@@ -0,0 +1,6 @@
+const std = @import("std");
+const flag = @import("flag");
+
+test {
+    std.testing.refAllDeclsRecursive(flag);
+}
-- 
2.54.0