Ensure Wix lists Nu plugin binaries. (#2637)

tests/shell/mod.rs

@@ -1 +1,34 @@
+use nu_test_support::{nu, pipeline};
+
 mod pipeline;
+
+#[test]
+fn plugins_are_declared_with_wix() {
+    let actual = nu!(
+        cwd: ".", pipeline(
+        r#"
+            echo $(open wix/main.wxs --raw | from xml
+                | get Wix.children.Product.children.0.Directory.children.0
+                | where Directory.attributes.Id == "$(var.PlatformProgramFilesFolder)"
+                | get Directory.children.Directory.children.0 | last
+                | get Directory.children.Component.children
+                | each { echo $it | first }
+                | skip
+                | where File.attributes.Name =~ "nu_plugin"
+                | str substring [_, -4] File.attributes.Name
+                | get File.attributes.Name
+                | sort-by
+                | wrap wix) | merge {
+                    open Cargo.toml |
+                    get bin.name |
+                    drop |
+                    sort-by |
+                    wrap cargo
+                }
+            | if $it.wix != $it.cargo { = 1 } { = 0 }
+            | math sum
+            "#
+    ));
+
+    assert_eq!(actual.out, "0");
+}