tests/functional2: migrate debugger.sh

Change-Id: I82c5b739db09530ff216c91608be2f70a2036e11

tests/functional2/eval/test_debugger.py

@@ -0,0 +1,29 @@
+import re
+from textwrap import dedent
+
+from functional2.testlib.fixtures.nix import Nix
+
+
+def test_regression_9932(nix: Nix):
+    cmd = nix.nix(["eval", "--debugger", "--expr", '(_: throw "oh snap") 42'], flake=True)
+    cmd.with_stdin(b":env")
+    res = cmd.run().expect(1)
+    assert "error: oh snap" in res.stderr_plain
+
+
+def test_debugger_output(nix: Nix):
+    expr = dedent("""
+        let x.a = 1; in
+        with x;
+        (_: builtins.seq x.a (throw "oh snap")) x.a
+    """)
+
+    res = (
+        nix.nix(["eval", "--debugger", "--expr", expr], flake=True)
+        .with_stdin(b":env\n")
+        .run()
+        .expect(1)
+    )
+    assert "error: oh snap" in res.stderr_plain
+    assert re.findall(r"with: .*a", res.stdout_plain)
+    assert re.findall(r"static: .*x", res.stdout_plain)