1 files changed, 161 insertions, 0 deletions
diff --git a/test/t/unit/test_unit_dequote.py b/test/t/unit/test_unit_dequote.py
new file mode 100644
index 0000000..0ac814d
--- /dev/null
+++ b/test/t/unit/test_unit_dequote.py
@@ -0,0 +1,161 @@
+import pytest
+
+from conftest import assert_bash_exec, bash_env_saved
+
+
+@pytest.mark.bashcomp(
+    cmd=None,
+    cwd="_filedir",
+    ignore_env=r"^\+declare -f __tester$",
+)
+class TestDequote:
+    def test_1_char(self, bash):
+        assert_bash_exec(
+            bash,
+            '__tester() { local REPLY=dummy v=var;_comp_dequote "$1";local ext=$?;((${#REPLY[@]}))&&printf \'<%s>\' "${REPLY[@]}";echo;return $ext;}',
+        )
+        output = assert_bash_exec(bash, "__tester a", want_output=True)
+        assert output.strip() == "<a>"
+
+    def test_2_str(self, bash):
+        output = assert_bash_exec(bash, "__tester abc", want_output=True)
+        assert output.strip() == "<abc>"
+
+    def test_3_null(self, bash):
+        output = assert_bash_exec(bash, "__tester ''", want_output=True)
+        assert output.strip() == ""
+
+    def test_4_empty(self, bash):
+        output = assert_bash_exec(bash, "__tester \"''\"", want_output=True)
+        assert output.strip() == "<>"
+
+    def test_5_brace(self, bash):
+        output = assert_bash_exec(bash, "__tester 'a{1..3}'", want_output=True)
+        assert output.strip() == "<a1><a2><a3>"
+
+    def test_6_glob(self, bash):
+        output = assert_bash_exec(bash, "__tester 'a?b'", want_output=True)
+        assert output.strip() == "<a b><a$b><a&b><a'b>"
+
+    def test_7_quote_1(self, bash):
+        output = assert_bash_exec(
+            bash, "__tester '\"a\"'\\'b\\'\\$\\'c\\'", want_output=True
+        )
+        assert output.strip() == "<abc>"
+
+    def test_7_quote_2(self, bash):
+        output = assert_bash_exec(
+            bash, "__tester '\\\"\\'\\''\\$\\`'", want_output=True
+        )
+        assert output.strip() == "<\"'$`>"
+
+    def test_7_quote_3(self, bash):
+        output = assert_bash_exec(
+            bash, "__tester \\$\\'a\\\\tb\\'", want_output=True
+        )
+        assert output.strip() == "<a\tb>"
+
+    def test_7_quote_4(self, bash):
+        output = assert_bash_exec(
+            bash, '__tester \'"abc\\"def"\'', want_output=True
+        )
+        assert output.strip() == '<abc"def>'
+
+    def test_7_quote_5(self, bash):
+        output = assert_bash_exec(
+            bash, "__tester \\'abc\\'\\\\\\'\\'def\\'", want_output=True
+        )
+        assert output.strip() == "<abc'def>"
+
+    def test_8_param_1(self, bash):
+        output = assert_bash_exec(bash, "__tester '$v'", want_output=True)
+        assert output.strip() == "<var>"
+
+    def test_8_param_2(self, bash):
+        output = assert_bash_exec(bash, "__tester '${v}'", want_output=True)
+        assert output.strip() == "<var>"
+
+    def test_8_param_3(self, bash):
+        output = assert_bash_exec(bash, "__tester '${#v}'", want_output=True)
+        assert output.strip() == "<3>"
+
+    def test_8_param_4(self, bash):
+        output = assert_bash_exec(bash, "__tester '${v[0]}'", want_output=True)
+        assert output.strip() == "<var>"
+
+    def test_9_qparam_1(self, bash):
+        output = assert_bash_exec(bash, "__tester '\"$v\"'", want_output=True)
+        assert output.strip() == "<var>"
+
+    def test_9_qparam_2(self, bash):
+        output = assert_bash_exec(
+            bash, "__tester '\"${v[@]}\"'", want_output=True
+        )
+        assert output.strip() == "<var>"
+
+    def test_10_pparam_1(self, bash):
+        output = assert_bash_exec(bash, "__tester '$?'", want_output=True)
+        assert output.strip() == "<0>"
+
+    def test_10_pparam_2(self, bash):
+        output = assert_bash_exec(bash, "__tester '${#1}'", want_output=True)
+        assert output.strip() == "<5>"  # The string `${#1}` is five characters
+
+    def test_unsafe_1(self, bash):
+        output = assert_bash_exec(
+            bash, "! __tester '$(echo hello >&2)'", want_output=True
+        )
+        assert output.strip() == ""
+
+    def test_unsafe_2(self, bash):
+        output = assert_bash_exec(
+            bash, "! __tester '|echo hello >&2'", want_output=True
+        )
+        assert output.strip() == ""
+
+    def test_unsafe_3(self, bash):
+        output = assert_bash_exec(
+            bash, "! __tester '>| important_file.txt'", want_output=True
+        )
+        assert output.strip() == ""
+
+    def test_unsafe_4(self, bash):
+        output = assert_bash_exec(
+            bash, "! __tester '`echo hello >&2`'", want_output=True
+        )
+        assert output.strip() == ""
+
+    def test_glob_default(self, bash):
+        with bash_env_saved(bash) as bash_env:
+            bash_env.shopt("failglob", False)
+            bash_env.shopt("nullglob", False)
+            output = assert_bash_exec(
+                bash, "__tester 'non-existent-*.txt'", want_output=True
+            )
+            assert output.strip() == "<non-existent-*.txt>"
+
+    def test_glob_noglob(self, bash):
+        with bash_env_saved(bash) as bash_env:
+            bash_env.set("noglob", True)
+            output = assert_bash_exec(
+                bash,
+                "__tester 'non-existent-*.txt'",
+                want_output=True,
+            )
+            assert output.strip() == "<non-existent-*.txt>"
+
+    def test_glob_failglob(self, bash):
+        with bash_env_saved(bash) as bash_env:
+            bash_env.shopt("failglob", True)
+            output = assert_bash_exec(
+                bash, "! __tester 'non-existent-*.txt'", want_output=True
+            )
+            assert output.strip() == ""
+
+    def test_glob_nullglob(self, bash):
+        with bash_env_saved(bash) as bash_env:
+            bash_env.shopt("nullglob", True)
+            output = assert_bash_exec(
+                bash, "__tester 'non-existent-*.txt'", want_output=True
+            )
+            assert output.strip() == ""