Migrate validate_json.py script to rust in run-make/rustdoc-map-file test

Author: GuillaumeGomez

tests/run-make/rustdoc-map-file/rmake.rs

@@ -1,54 +1,57 @@
-// This test ensures that all items from `foo` are correctly generated into the `redirect-map.json`
-// file with `--generate-redirect-map` rustdoc option.
-
-use std::path::Path;
-
+use run_make_support::path_helpers::read_dir_entries_recursive;
 use run_make_support::rfs::read_to_string;
-use run_make_support::{path, rustdoc, serde_json};
+use run_make_support::{jzon, rustdoc};
 
 fn main() {
     let out_dir = "out";
-    let crate_name = "foo";
     rustdoc()
         .input("foo.rs")
-        .crate_name(crate_name)
         .arg("-Zunstable-options")
         .arg("--generate-redirect-map")
         .out_dir(&out_dir)
         .run();
 
-    let generated = read_to_string(path(out_dir).join(crate_name).join("redirect-map.json"));
-    let expected = read_to_string("expected.json");
-    let generated: serde_json::Value =
-        serde_json::from_str(&generated).expect("failed to parse JSON");
-    let expected: serde_json::Value =
-        serde_json::from_str(&expected).expect("failed to parse JSON");
-    let expected = expected.as_object().unwrap();
+    let mut found_file = false;
+    read_dir_entries_recursive(&out_dir, |path| {
+        if !found_file
+            && path.is_file()
+            && path.file_name().map(|name| name == "redirect-map.json").unwrap_or(false)
+        {
+            found_file = true;
+            let generated = read_to_string(path);
+            let expected = read_to_string("expected.json");
+            let generated = jzon::parse(&generated).expect("failed to parse JSON");
+            let expected = jzon::parse(&expected).expect("failed to parse JSON");
 
-    let mut differences = Vec::new();
-    for (key, expected_value) in expected.iter() {
-        match generated.get(key) {
-            Some(value) => {
-                if expected_value != value {
-                    differences.push(format!(
-                        "values for key `{key}` don't match: `{expected_value:?}` != `{value:?}`"
-                    ));
+            let mut differences = Vec::new();
+            for (key, expected_value) in expected.entries() {
+                match generated.get(key) {
+                    Some(value) => {
+                        if expected_value != value {
+                            differences.push(format!("values for key `{key}` don't match"));
+                        }
+                    }
+                    None => differences.push(format!("missing key `{key}`")),
+                }
+            }
+            for (key, data) in generated.entries() {
+                if !expected.has_key(key) {
+                    differences
+                        .push(format!("Extra data not expected: key: `{key}`, data: `{data}`"));
                 }
             }
-            None => differences.push(format!("missing key `{key}`")),
-        }
-    }
-    for (key, data) in generated.as_object().unwrap().iter() {
-        if !expected.contains_key(key) {
-            differences.push(format!("Extra data not expected: key: `{key}`, data: `{data}`"));
-        }
-    }
 
-    if !differences.is_empty() {
-        eprintln!("Found differences in JSON files:");
-        for diff in differences {
-            eprintln!("=> {diff}");
+            if !differences.is_empty() {
+                eprintln!("Found differences in JSON files:");
+                for diff in differences {
+                    eprintln!("=> {diff}");
+                }
+                std::process::exit(1);
+            }
         }
-        panic!("Found differences in JSON files");
+    });
+
+    if !found_file {
+        panic!("`redirect-map.json` file was not found");
     }
 }