1 files changed, 81 insertions, 0 deletions
diff --git a/cli/test_runner.rs b/cli/test_runner.rs
new file mode 100644
index 000000000..e05013889
--- /dev/null
+++ b/cli/test_runner.rs
@@ -0,0 +1,81 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+
+use crate::installer::is_remote_url;
+use deno_core::ErrBox;
+use std;
+use std::path::PathBuf;
+use url::Url;
+
+pub fn prepare_test_modules_urls(
+  include: Vec<String>,
+  root_path: PathBuf,
+) -> Result<Vec<Url>, ErrBox> {
+  let (include_paths, include_urls): (Vec<String>, Vec<String>) =
+    include.into_iter().partition(|n| !is_remote_url(n));
+
+  let mut prepared = vec![];
+
+  for path in include_paths {
+    let p = root_path.join(path).canonicalize()?;
+    let url = Url::from_file_path(p).unwrap();
+    prepared.push(url);
+  }
+
+  for remote_url in include_urls {
+    let url = Url::parse(&remote_url)?;
+    prepared.push(url);
+  }
+
+  Ok(prepared)
+}
+
+pub fn render_test_file(modules: Vec<Url>, fail_fast: bool) -> String {
+  let mut test_file = "".to_string();
+
+  for module in modules {
+    test_file.push_str(&format!("import \"{}\";\n", module.to_string()));
+  }
+
+  let run_tests_cmd =
+    format!("Deno.runTests({{ exitOnFail: {} }});\n", fail_fast);
+  test_file.push_str(&run_tests_cmd);
+
+  test_file
+}
+
+#[cfg(test)]
+mod tests {
+  use super::*;
+  use crate::test_util;
+
+  #[test]
+  fn test_prepare_test_modules_urls() {
+    let test_data_path = test_util::root_path().join("cli/tests/subdir");
+    let mut matched_urls = prepare_test_modules_urls(
+      vec![
+        "https://example.com/colors_test.ts".to_string(),
+        "./mod1.ts".to_string(),
+        "./mod3.js".to_string(),
+        "subdir2/mod2.ts".to_string(),
+        "http://example.com/printf_test.ts".to_string(),
+      ],
+      test_data_path.clone(),
+    )
+    .unwrap();
+    let test_data_url =
+      Url::from_file_path(test_data_path).unwrap().to_string();
+
+    let expected: Vec<Url> = vec![
+      format!("{}/mod1.ts", test_data_url),
+      format!("{}/mod3.js", test_data_url),
+      format!("{}/subdir2/mod2.ts", test_data_url),
+      "http://example.com/printf_test.ts".to_string(),
+      "https://example.com/colors_test.ts".to_string(),
+    ]
+    .into_iter()
+    .map(|f| Url::parse(&f).unwrap())
+    .collect();
+    matched_urls.sort();
+    assert_eq!(matched_urls, expected);
+  }
+}