1 files changed, 97 insertions, 0 deletions
diff --git a/tests/languages/julia_test.py b/tests/languages/julia_test.py
new file mode 100644
index 0000000..4ea3c25
--- /dev/null
+++ b/tests/languages/julia_test.py
@@ -0,0 +1,97 @@
+from __future__ import annotations
+
+from pre_commit.languages import julia
+from testing.language_helpers import run_language
+from testing.util import cwd
+
+
+def _make_hook(tmp_path, julia_code):
+    src_dir = tmp_path.joinpath('src')
+    src_dir.mkdir()
+    src_dir.joinpath('main.jl').write_text(julia_code)
+    tmp_path.joinpath('Project.toml').write_text(
+        '[deps]\n'
+        'Example = "7876af07-990d-54b4-ab0e-23690620f79a"\n',
+    )
+
+
+def test_julia_hook(tmp_path):
+    code = """
+    using Example
+    function main()
+        println("Hello, world!")
+    end
+    main()
+    """
+    _make_hook(tmp_path, code)
+    expected = (0, b'Hello, world!\n')
+    assert run_language(tmp_path, julia, 'src/main.jl') == expected
+
+
+def test_julia_hook_manifest(tmp_path):
+    code = """
+    using Example
+    println(pkgversion(Example))
+    """
+    _make_hook(tmp_path, code)
+
+    tmp_path.joinpath('Manifest.toml').write_text(
+        'manifest_format = "2.0"\n\n'
+        '[[deps.Example]]\n'
+        'git-tree-sha1 = "11820aa9c229fd3833d4bd69e5e75ef4e7273bf1"\n'
+        'uuid = "7876af07-990d-54b4-ab0e-23690620f79a"\n'
+        'version = "0.5.4"\n',
+    )
+    expected = (0, b'0.5.4\n')
+    assert run_language(tmp_path, julia, 'src/main.jl') == expected
+
+
+def test_julia_hook_args(tmp_path):
+    code = """
+    function main(argv)
+        foreach(println, argv)
+    end
+    main(ARGS)
+    """
+    _make_hook(tmp_path, code)
+    expected = (0, b'--arg1\n--arg2\n')
+    assert run_language(
+        tmp_path, julia, 'src/main.jl --arg1 --arg2',
+    ) == expected
+
+
+def test_julia_hook_additional_deps(tmp_path):
+    code = """
+    using TOML
+    function main()
+        project_file = Base.active_project()
+        dict = TOML.parsefile(project_file)
+        for (k, v) in dict["deps"]
+            println(k, " = ", v)
+        end
+    end
+    main()
+    """
+    _make_hook(tmp_path, code)
+    deps = ('TOML=fa267f1f-6049-4f14-aa54-33bafae1ed76',)
+    ret, out = run_language(tmp_path, julia, 'src/main.jl', deps=deps)
+    assert ret == 0
+    assert b'Example = 7876af07-990d-54b4-ab0e-23690620f79a' in out
+    assert b'TOML = fa267f1f-6049-4f14-aa54-33bafae1ed76' in out
+
+
+def test_julia_repo_local(tmp_path):
+    env_dir = tmp_path.joinpath('envdir')
+    env_dir.mkdir()
+    local_dir = tmp_path.joinpath('local')
+    local_dir.mkdir()
+    local_dir.joinpath('local.jl').write_text(
+        'using TOML; foreach(println, ARGS)',
+    )
+    with cwd(local_dir):
+        deps = ('TOML=fa267f1f-6049-4f14-aa54-33bafae1ed76',)
+        expected = (0, b'--local-arg1\n--local-arg2\n')
+        assert run_language(
+            env_dir, julia, 'local.jl --local-arg1 --local-arg2',
+            deps=deps, is_local=True,
+        ) == expected