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<body>
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<main>
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<article id="content">
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<header>
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<h1 class="title">Module <code>miplearn.components.tests.test_composite</code></h1>
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</header>
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<section id="section-intro">
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<details class="source">
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<summary>
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<span>Expand source code</span>
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</summary>
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<pre><code class="python"># MIPLearn: Extensible Framework for Learning-Enhanced Mixed-Integer Optimization
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# Copyright (C) 2020, UChicago Argonne, LLC. All rights reserved.
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# Released under the modified BSD license. See COPYING.md for more details.
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from unittest.mock import Mock, call
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from miplearn.components.component import Component
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from miplearn.components.composite import CompositeComponent
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from miplearn.instance import Instance
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from miplearn.solvers.learning import LearningSolver
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def test_composite():
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solver, instance, model = (
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Mock(spec=LearningSolver),
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Mock(spec=Instance),
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Mock(),
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)
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c1 = Mock(spec=Component)
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c2 = Mock(spec=Component)
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cc = CompositeComponent([c1, c2])
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# Should broadcast before_solve
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cc.before_solve(solver, instance, model)
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c1.before_solve.assert_has_calls([call(solver, instance, model)])
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c2.before_solve.assert_has_calls([call(solver, instance, model)])
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# Should broadcast after_solve
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cc.after_solve(solver, instance, model, {}, {})
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c1.after_solve.assert_has_calls([call(solver, instance, model, {}, {})])
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c2.after_solve.assert_has_calls([call(solver, instance, model, {}, {})])
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# Should broadcast fit
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cc.fit([1, 2, 3])
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c1.fit.assert_has_calls([call([1, 2, 3])])
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c2.fit.assert_has_calls([call([1, 2, 3])])
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# Should broadcast lazy_cb
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cc.lazy_cb(solver, instance, model)
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c1.lazy_cb.assert_has_calls([call(solver, instance, model)])
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c2.lazy_cb.assert_has_calls([call(solver, instance, model)])
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# Should broadcast iteration_cb
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cc.iteration_cb(solver, instance, model)
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c1.iteration_cb.assert_has_calls([call(solver, instance, model)])
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c2.iteration_cb.assert_has_calls([call(solver, instance, model)])
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# If at least one child component returns true, iteration_cb should return True
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c1.iteration_cb = Mock(return_value=True)
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c2.iteration_cb = Mock(return_value=False)
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assert cc.iteration_cb(solver, instance, model)
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# If all children return False, iteration_cb should return False
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c1.iteration_cb = Mock(return_value=False)
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c2.iteration_cb = Mock(return_value=False)
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assert not cc.iteration_cb(solver, instance, model)</code></pre>
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</details>
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</section>
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<section>
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</section>
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<section>
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</section>
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<section>
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<h2 class="section-title" id="header-functions">Functions</h2>
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<dl>
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<dt id="miplearn.components.tests.test_composite.test_composite"><code class="name flex">
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<span>def <span class="ident">test_composite</span></span>(<span>)</span>
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</code></dt>
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<dd>
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<section class="desc"></section>
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<details class="source">
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<summary>
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<span>Expand source code</span>
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</summary>
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<pre><code class="python">def test_composite():
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solver, instance, model = (
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Mock(spec=LearningSolver),
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Mock(spec=Instance),
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Mock(),
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)
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c1 = Mock(spec=Component)
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c2 = Mock(spec=Component)
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cc = CompositeComponent([c1, c2])
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# Should broadcast before_solve
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cc.before_solve(solver, instance, model)
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c1.before_solve.assert_has_calls([call(solver, instance, model)])
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c2.before_solve.assert_has_calls([call(solver, instance, model)])
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# Should broadcast after_solve
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cc.after_solve(solver, instance, model, {}, {})
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c1.after_solve.assert_has_calls([call(solver, instance, model, {}, {})])
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c2.after_solve.assert_has_calls([call(solver, instance, model, {}, {})])
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# Should broadcast fit
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cc.fit([1, 2, 3])
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c1.fit.assert_has_calls([call([1, 2, 3])])
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c2.fit.assert_has_calls([call([1, 2, 3])])
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# Should broadcast lazy_cb
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cc.lazy_cb(solver, instance, model)
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c1.lazy_cb.assert_has_calls([call(solver, instance, model)])
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c2.lazy_cb.assert_has_calls([call(solver, instance, model)])
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# Should broadcast iteration_cb
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cc.iteration_cb(solver, instance, model)
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c1.iteration_cb.assert_has_calls([call(solver, instance, model)])
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c2.iteration_cb.assert_has_calls([call(solver, instance, model)])
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# If at least one child component returns true, iteration_cb should return True
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c1.iteration_cb = Mock(return_value=True)
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c2.iteration_cb = Mock(return_value=False)
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assert cc.iteration_cb(solver, instance, model)
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# If all children return False, iteration_cb should return False
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c1.iteration_cb = Mock(return_value=False)
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c2.iteration_cb = Mock(return_value=False)
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assert not cc.iteration_cb(solver, instance, model)</code></pre>
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</details>
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</dd>
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</dl>
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</section>
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<section>
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</section>
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</article>
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<nav id="sidebar">
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<h1>Index</h1>
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<div class="toc">
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<ul></ul>
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</div>
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<ul id="index">
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<li><h3>Super-module</h3>
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<ul>
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<li><code><a title="miplearn.components.tests" href="index.html">miplearn.components.tests</a></code></li>
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</ul>
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</li>
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<li><h3><a href="#header-functions">Functions</a></h3>
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<ul class="">
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<li><code><a title="miplearn.components.tests.test_composite.test_composite" href="#miplearn.components.tests.test_composite.test_composite">test_composite</a></code></li>
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</ul>
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</li>
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</ul>
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