53 lines
1.6 KiB
Python
53 lines
1.6 KiB
Python
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"""Integration test for the 2D elastic cantilever earthquake example."""
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from __future__ import annotations
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import tempfile
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from pathlib import Path
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import pytest
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pytest.importorskip("openseespy")
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from otko.services import load_project, save_project # noqa: E402
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from otko.services.opensees_runner import OpenSeesRunner # noqa: E402
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pytestmark = pytest.mark.slow
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def test_ex1a_canti2d_eq_runs_and_oscillates(tmp_path) -> None: # type: ignore[no-untyped-def]
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from examples.ex1a_canti2d_eq import (
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ANALYSIS_DT,
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COLUMN_HEIGHT,
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build_ex1a_canti2d_eq,
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)
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proj = build_ex1a_canti2d_eq()
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proj.validate_references()
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path = tmp_path / "ex1a.osmodel"
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save_project(proj, path)
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reloaded = load_project(path)
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reloaded.validate_references()
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results_dir = Path(tempfile.mkdtemp(prefix="ex1a_eq_"))
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result = OpenSeesRunner(reloaded).run(reloaded.analyses[1], results_dir=results_dir)
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t = result.time()
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top = result.node_disp_history(2)
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ux = top[:, 0]
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uy = top[:, 1]
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assert len(t) == reloaded.analyses[1].n_steps
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assert result.dt == pytest.approx(ANALYSIS_DT)
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assert t[-1] == pytest.approx(ANALYSIS_DT * reloaded.analyses[1].n_steps, abs=ANALYSIS_DT)
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# Dynamic response should oscillate in both directions under the base motion.
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assert ux.max() > 0.01
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assert ux.min() < -0.01
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# The elastic column should stay in a physically reasonable range.
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assert max(abs(ux)) < 0.10 * COLUMN_HEIGHT
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# Gravity remains locked but the input is horizontal, so Uy should stay small.
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assert max(abs(uy)) < 1.0
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