diff --git a/src/tools/tidy/src/allowed_run_make_makefiles.txt b/src/tools/tidy/src/allowed_run_make_makefiles.txt
index 70c1b055c6e40..73d6af50ea03a 100644
--- a/src/tools/tidy/src/allowed_run_make_makefiles.txt
+++ b/src/tools/tidy/src/allowed_run_make_makefiles.txt
@@ -24,7 +24,6 @@ run-make/dep-info/Makefile
 run-make/dump-ice-to-disk/Makefile
 run-make/dump-mono-stats/Makefile
 run-make/emit-path-unhashed/Makefile
-run-make/emit-shared-files/Makefile
 run-make/emit-to-stdout/Makefile
 run-make/env-dep-info/Makefile
 run-make/export-executable-symbols/Makefile
diff --git a/tests/run-make/emit-shared-files/Makefile b/tests/run-make/emit-shared-files/Makefile
deleted file mode 100644
index 27c72b003686d..0000000000000
--- a/tests/run-make/emit-shared-files/Makefile
+++ /dev/null
@@ -1,46 +0,0 @@
-include ../tools.mk
-
-INVOCATION_ONLY = $(TMPDIR)/invocation-only
-TOOLCHAIN_ONLY = $(TMPDIR)/toolchain-only
-ALL_SHARED = $(TMPDIR)/all-shared
-
-all: invocation-only toolchain-only all-shared
-
-invocation-only:
-	$(RUSTDOC) -Z unstable-options --emit=invocation-specific --output $(INVOCATION_ONLY) --resource-suffix=-xxx --theme y.css --extend-css z.css x.rs
-	[ -e $(INVOCATION_ONLY)/search-index-xxx.js ]
-	[ -e $(INVOCATION_ONLY)/settings.html ]
-	[ -e $(INVOCATION_ONLY)/x/all.html ]
-	[ -e $(INVOCATION_ONLY)/x/index.html ]
-	[ -e $(INVOCATION_ONLY)/theme-xxx.css ] # generated from z.css
-	! [ -e $(INVOCATION_ONLY)/storage-xxx.js ]
-	! [ -e $(INVOCATION_ONLY)/SourceSerif4-It.ttf.woff2 ]
-
-	# FIXME: this probably shouldn't have a suffix
-	[ -e $(INVOCATION_ONLY)/y-xxx.css ]
-	# FIXME: this is technically incorrect (see `write_shared`)
-	! [ -e $(INVOCATION_ONLY)/main-xxx.js ]
-
-toolchain-only:
-	$(RUSTDOC) -Z unstable-options --emit=toolchain-shared-resources --output $(TOOLCHAIN_ONLY) --resource-suffix=-xxx --extend-css z.css x.rs
-	[ -e $(TOOLCHAIN_ONLY)/static.files/storage-*.js ]
-	[ -e $(TOOLCHAIN_ONLY)/static.files/SourceSerif4-It-*.ttf.woff2 ]
-	! [ -e $(TOOLCHAIN_ONLY)/search-index-xxx.js ]
-	! [ -e $(TOOLCHAIN_ONLY)/x/index.html ]
-	! [ -e $(TOOLCHAIN_ONLY)/theme.css ]
-
-	[ -e $(TOOLCHAIN_ONLY)/static.files/main-*.js ]
-	! [ -e $(TOOLCHAIN_ONLY)/y-xxx.css ]
-
-all-shared:
-	$(RUSTDOC) -Z unstable-options --emit=toolchain-shared-resources,unversioned-shared-resources --output $(ALL_SHARED) --resource-suffix=-xxx --extend-css z.css x.rs
-	[ -e $(ALL_SHARED)/static.files/storage-*.js ]
-	[ -e $(ALL_SHARED)/static.files/SourceSerif4-It-*.ttf.woff2 ]
-	! [ -e $(ALL_SHARED)/search-index-xxx.js ]
-	! [ -e $(ALL_SHARED)/settings.html ]
-	! [ -e $(ALL_SHARED)/x ]
-	! [ -e $(ALL_SHARED)/src ]
-	! [ -e $(ALL_SHARED)/theme.css ]
-
-	[ -e $(ALL_SHARED)/static.files/main-*.js ]
-	! [ -e $(ALL_SHARED)/y-xxx.css ]
diff --git a/tests/run-make/emit-shared-files/rmake.rs b/tests/run-make/emit-shared-files/rmake.rs
new file mode 100644
index 0000000000000..33c1231024624
--- /dev/null
+++ b/tests/run-make/emit-shared-files/rmake.rs
@@ -0,0 +1,102 @@
+// This test checks the functionality of one of rustdoc's unstable options,
+// the ability to specify emit restrictions with `--emit`.
+// `invocation-only` should only emit crate-specific files.
+// `toolchain-only` should only emit toolchain-specific files.
+// `all-shared` should only emit files that can be shared between crates.
+// See https://github.com/rust-lang/rust/pull/83478
+
+use run_make_support::{has_extension, has_prefix, rustdoc, shallow_find_files};
+use std::path::Path;
+
+fn main() {
+    rustdoc()
+        .arg("-Zunstable-options")
+        .arg("--emit=invocation-specific")
+        .output("invocation-only")
+        .arg("--resource-suffix=-xxx")
+        .args(&["--theme", "y.css"])
+        .args(&["--extend-css", "z.css"])
+        .input("x.rs")
+        .run();
+    assert!(Path::new("invocation-only/search-index-xxx.js").exists());
+    assert!(Path::new("invocation-only/settings.html").exists());
+    assert!(Path::new("invocation-only/x/all.html").exists());
+    assert!(Path::new("invocation-only/x/index.html").exists());
+    assert!(Path::new("invocation-only/theme-xxx.css").exists()); // generated from z.css
+    assert!(!Path::new("invocation-only/storage-xxx.js").exists());
+    assert!(!Path::new("invocation-only/SourceSerif4-It.ttf.woff2").exists());
+    // FIXME: this probably shouldn't have a suffix
+    assert!(Path::new("invocation-only/y-xxx.css").exists());
+    // FIXME: this is technically incorrect (see `write_shared`)
+    assert!(!Path::new("invocation-only/main-xxx.js").exists());
+
+    rustdoc()
+        .arg("-Zunstable-options")
+        .arg("--emit=toolchain-shared-resources")
+        .output("toolchain-only")
+        .arg("--resource-suffix=-xxx")
+        .args(&["--extend-css", "z.css"])
+        .input("x.rs")
+        .run();
+    assert_eq!(
+        shallow_find_files("toolchain-only/static.files", |path| {
+            has_prefix(path, "storage-") && has_extension(path, "js")
+        })
+        .len(),
+        1
+    );
+    assert_eq!(
+        shallow_find_files("toolchain-only/static.files", |path| {
+            has_prefix(path, "SourceSerif4-It-") && has_extension(path, "woff2")
+        })
+        .len(),
+        1
+    );
+    assert_eq!(
+        shallow_find_files("toolchain-only/static.files", |path| {
+            has_prefix(path, "main-") && has_extension(path, "js")
+        })
+        .len(),
+        1
+    );
+    assert!(!Path::new("toolchain-only/search-index-xxx.js").exists());
+    assert!(!Path::new("toolchain-only/x/index.html").exists());
+    assert!(!Path::new("toolchain-only/theme.css").exists());
+    assert!(!Path::new("toolchain-only/y-xxx.css").exists());
+
+    rustdoc()
+        .arg("-Zunstable-options")
+        .arg("--emit=toolchain-shared-resources,unversioned-shared-resources")
+        .output("all-shared")
+        .arg("--resource-suffix=-xxx")
+        .args(&["--extend-css", "z.css"])
+        .input("x.rs")
+        .run();
+    assert_eq!(
+        shallow_find_files("all-shared/static.files", |path| {
+            has_prefix(path, "storage-") && has_extension(path, "js")
+        })
+        .len(),
+        1
+    );
+    assert_eq!(
+        shallow_find_files("all-shared/static.files", |path| {
+            has_prefix(path, "SourceSerif4-It-") && has_extension(path, "woff2")
+        })
+        .len(),
+        1
+    );
+    assert!(!Path::new("all-shared/search-index-xxx.js").exists());
+    assert!(!Path::new("all-shared/settings.html").exists());
+    assert!(!Path::new("all-shared/x").exists());
+    assert!(!Path::new("all-shared/src").exists());
+    assert!(!Path::new("all-shared/theme.css").exists());
+    assert_eq!(
+        shallow_find_files("all-shared/static.files", |path| {
+            has_prefix(path, "main-") && has_extension(path, "js")
+        })
+        .len(),
+        1
+    );
+    assert!(!Path::new("all-shared/y-xxx.css").exists());
+}