93 lines
3.3 KiB
Python
93 lines
3.3 KiB
Python
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"""Tests against the real runner module (no fake) using harmless commands."""
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import subprocess
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import pytest
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from lim import runner, ui
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from lim.errors import LimError
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MISSING = "lim-definitely-missing-binary-x"
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class TestMissingBinaries:
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def test_run_raises_lim_error(self):
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with pytest.raises(LimError, match="Command not found"):
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runner.run([MISSING])
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def test_run_tolerates_when_check_is_false(self):
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result = runner.run([MISSING], check=False)
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assert result.returncode == runner.COMMAND_NOT_FOUND
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def test_output_raises_lim_error(self):
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with pytest.raises(LimError, match="Command not found"):
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runner.output([MISSING])
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def test_output_tolerates_when_check_is_false(self):
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assert runner.output([MISSING], check=False) == ""
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def test_succeeds_returns_false(self):
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assert runner.succeeds([MISSING]) is False
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def test_tolerated_paths_emit_a_warning(self, monkeypatch):
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warnings = []
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monkeypatch.setattr(ui, "warning", warnings.append)
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runner.run([MISSING], check=False)
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runner.output([MISSING], check=False)
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runner.succeeds([MISSING])
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assert len(warnings) == 3
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assert all("Command not found" in text for text in warnings)
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def test_pipeline_raises_lim_error(self):
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with pytest.raises(LimError, match="Command not found"):
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runner.pipeline(["echo", "x"], [MISSING])
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def test_pipeline_raises_when_first_member_is_missing(self):
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with pytest.raises(LimError, match=f"Command not found: {MISSING}"):
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runner.pipeline([MISSING], ["cat"])
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def test_pipeline_reaps_started_members(self, monkeypatch):
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spawned = []
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original_popen = subprocess.Popen
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def spying_popen(*args, **kwargs):
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process = original_popen(*args, **kwargs)
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spawned.append(process)
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return process
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monkeypatch.setattr(subprocess, "Popen", spying_popen)
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with pytest.raises(LimError, match="Command not found"):
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runner.pipeline(["sleep", "60"], [MISSING])
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assert len(spawned) == 1
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assert spawned[0].poll() is not None # killed and reaped, not running
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assert spawned[0].stdout.closed
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def test_run_prefers_explicit_error_message(self):
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with pytest.raises(LimError, match="custom message"):
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runner.run([MISSING], error_msg="custom message")
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def test_output_prefers_explicit_error_message(self):
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with pytest.raises(LimError, match="custom message"):
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runner.output([MISSING], error_msg="custom message")
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class TestHappyPath:
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def test_run_returns_completed_process(self):
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assert runner.run(["true"]).returncode == 0
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def test_run_raises_on_nonzero_exit(self):
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with pytest.raises(LimError, match="Command failed with code 1"):
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runner.run(["false"])
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def test_output_returns_stripped_stdout(self):
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assert runner.output(["echo", "hello"]) == "hello"
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def test_succeeds_reflects_exit_code(self):
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assert runner.succeeds(["true"]) is True
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assert runner.succeeds(["false"]) is False
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def test_pipeline_runs_and_checks_every_member(self):
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runner.pipeline(["echo", "x"], ["cat"]) # must not raise
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with pytest.raises(LimError, match="Pipeline failed"):
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runner.pipeline(["false"], ["cat"])
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