1 files changed, 90 insertions, 0 deletions
diff --git a/test/t/unit/test_unit_realcommand.py b/test/t/unit/test_unit_realcommand.py
new file mode 100644
index 0000000..4eb7b73
--- /dev/null
+++ b/test/t/unit/test_unit_realcommand.py
@@ -0,0 +1,90 @@
+import pytest
+
+from conftest import assert_bash_exec, bash_env_saved
+
+
+@pytest.mark.bashcomp(
+    cmd=None, cwd="shared", ignore_env=r"^\+declare -f __tester$"
+)
+class TestUnitRealCommand:
+    @pytest.fixture
+    def functions(self, bash):
+        assert_bash_exec(
+            bash,
+            (
+                "__tester() { "
+                "local REPLY rc; "
+                '_comp_realcommand "$1"; '
+                "rc=$?; "
+                'printf %s "$REPLY"; '
+                "return $rc; "
+                "}"
+            ),
+        )
+
+    def test_non_pollution(self, bash):
+        """Test environment non-pollution, detected at teardown."""
+        assert_bash_exec(
+            bash,
+            "foo() { local REPLY=; _comp_realcommand bar; }; foo; unset -f foo",
+            want_output=None,
+        )
+
+    def test_basename(self, bash, functions):
+        with bash_env_saved(bash) as bash_env:
+            bash_env.write_variable("PATH", "$PWD/bin:$PATH", quote=False)
+            output = assert_bash_exec(
+                bash,
+                "__tester arp",
+                want_output=True,
+                want_newline=False,
+            )
+            assert output.strip().endswith("/shared/bin/arp")
+
+    def test_basename_nonexistent(self, bash, functions):
+        filename = "non-existent-file-for-bash-completion-tests"
+        skipif = "! type -P %s" % filename
+        try:
+            assert_bash_exec(bash, skipif, want_output=None)
+        except AssertionError:
+            pytest.skipif(skipif)
+        output = assert_bash_exec(
+            bash,
+            "! __tester %s" % filename,
+            want_output=False,
+        )
+        assert output.strip() == ""
+
+    def test_relative(self, bash, functions):
+        output = assert_bash_exec(
+            bash,
+            "__tester bin/arp",
+            want_output=True,
+            want_newline=False,
+        )
+        assert output.strip().endswith("/shared/bin/arp")
+
+    def test_relative_nonexistent(self, bash, functions):
+        output = assert_bash_exec(
+            bash,
+            "! __tester bin/non-existent",
+            want_output=False,
+        )
+        assert output.strip() == ""
+
+    def test_absolute(self, bash, functions):
+        output = assert_bash_exec(
+            bash,
+            '__tester "$PWD/bin/arp"',
+            want_output=True,
+            want_newline=False,
+        )
+        assert output.strip().endswith("/shared/bin/arp")
+
+    def test_absolute_nonexistent(self, bash, functions):
+        output = assert_bash_exec(
+            bash,
+            '! __tester "$PWD/bin/non-existent"',
+            want_output=False,
+        )
+        assert output.strip() == ""