From 2b63ba31e9757347b4e8d10c435396f94367ef45 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Mon, 1 Jan 2024 19:27:40 -0700
Subject: [PATCH] add standalone test for depending on the main module

---
 test/standalone.zig                           |  4 +++
 test/standalone/depend_on_main_mod/build.zig  | 28 +++++++++++++++++++
 .../standalone/depend_on_main_mod/src/foo.zig |  6 ++++
 .../depend_on_main_mod/src/main.zig           |  5 ++++
 4 files changed, 43 insertions(+)
 create mode 100644 test/standalone/depend_on_main_mod/build.zig
 create mode 100644 test/standalone/depend_on_main_mod/src/foo.zig
 create mode 100644 test/standalone/depend_on_main_mod/src/main.zig

diff --git a/test/standalone.zig b/test/standalone.zig
index 0303c49c13..b26e85c159 100644
--- a/test/standalone.zig
+++ b/test/standalone.zig
@@ -258,6 +258,10 @@ pub const build_cases = [_]BuildCase{
         .build_root = "test/standalone/ios",
         .import = @import("standalone/ios/build.zig"),
     },
+    .{
+        .build_root = "test/standalone/depend_on_main_mod",
+        .import = @import("standalone/depend_on_main_mod/build.zig"),
+    },
 };
 
 const std = @import("std");
diff --git a/test/standalone/depend_on_main_mod/build.zig b/test/standalone/depend_on_main_mod/build.zig
new file mode 100644
index 0000000000..bbef64693e
--- /dev/null
+++ b/test/standalone/depend_on_main_mod/build.zig
@@ -0,0 +1,28 @@
+const std = @import("std");
+
+pub fn build(b: *std.Build) void {
+    const test_step = b.step("test", "Test it");
+    b.default_step = test_step;
+
+    const target = b.standardTargetOptions(.{});
+    const optimize = b.standardOptimizeOption(.{});
+
+    const exe = b.addExecutable(.{
+        .name = "depend_on_main_mod",
+        .root_source_file = .{ .path = "src/main.zig" },
+        .target = target,
+        .optimize = optimize,
+    });
+
+    const foo_module = b.addModule("foo", .{
+        .root_source_file = .{ .path = "src/foo.zig" },
+    });
+
+    foo_module.addImport("root2", &exe.root_module);
+    exe.root_module.addImport("foo", foo_module);
+
+    const run_cmd = b.addRunArtifact(exe);
+    run_cmd.expectExitCode(0);
+
+    test_step.dependOn(&run_cmd.step);
+}
diff --git a/test/standalone/depend_on_main_mod/src/foo.zig b/test/standalone/depend_on_main_mod/src/foo.zig
new file mode 100644
index 0000000000..0a52bce8aa
--- /dev/null
+++ b/test/standalone/depend_on_main_mod/src/foo.zig
@@ -0,0 +1,6 @@
+const std = @import("std");
+const assert = std.debug.assert;
+
+pub fn run() void {
+    comptime assert(@import("root") == @import("root2"));
+}
diff --git a/test/standalone/depend_on_main_mod/src/main.zig b/test/standalone/depend_on_main_mod/src/main.zig
new file mode 100644
index 0000000000..0735fff4c7
--- /dev/null
+++ b/test/standalone/depend_on_main_mod/src/main.zig
@@ -0,0 +1,5 @@
+const std = @import("std");
+
+pub fn main() !void {
+    @import("foo").run();
+}