add test for spawning child process with empty environment

thanks to BenoitJGirard for pointing out the child process
implementation needs 3 extra null bytes in #2031

2 files changed, 18 insertions, 0 deletions

diff --git a/test/standalone/empty_env/build.zig b/test/standalone/empty_env/build.zig
new file mode 100644
index 0000000000..2a184dcd2e
--- /dev/null
+++ b/test/standalone/empty_env/build.zig
@@ -0,0 +1,12 @@
+const Builder = @import("std").build.Builder;
+
+pub fn build(b: *Builder) void {
+    const main = b.addExecutable("main", "main.zig");
+    main.setBuildMode(b.standardReleaseOptions());
+
+    const run = main.run();
+    run.clearEnvironment();
+
+    const test_step = b.step("test", "Test it");
+    test_step.dependOn(&run.step);
+}
diff --git a/test/standalone/empty_env/main.zig b/test/standalone/empty_env/main.zig
new file mode 100644
index 0000000000..20b45c3137
--- /dev/null
+++ b/test/standalone/empty_env/main.zig
@@ -0,0 +1,6 @@
+const std = @import("std");
+
+pub fn main() void {
+    const env_map = std.os.getEnvMap(std.debug.global_allocator) catch @panic("unable to get env map");
+    std.testing.expect(env_map.count() == 0);
+}