Bug 1842250 - Refactor the remaining HistoryController functions to lib-state
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.fenix.library.history.state.bindings
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import kotlinx.coroutines.flow.Flow
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import kotlinx.coroutines.flow.distinctUntilChangedBy
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import mozilla.components.lib.state.helpers.AbstractBinding
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import org.mozilla.fenix.library.history.HistoryFragmentState
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import org.mozilla.fenix.library.history.HistoryFragmentStore
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/**
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* A binding to map state updates to menu updates.
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*/
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class MenuBinding(
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store: HistoryFragmentStore,
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val invalidateOptionsMenu: () -> Unit,
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) : AbstractBinding<HistoryFragmentState>(store) {
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override suspend fun onState(flow: Flow<HistoryFragmentState>) {
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flow.distinctUntilChangedBy { it.mode }
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.collect { invalidateOptionsMenu() }
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}
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}
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.fenix.library.history.state.bindings
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import mozilla.components.support.test.ext.joinBlocking
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import mozilla.components.support.test.rule.MainCoroutineRule
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import org.junit.Assert.assertTrue
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import org.junit.Rule
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import org.junit.Test
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import org.mozilla.fenix.library.history.HistoryFragmentAction
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import org.mozilla.fenix.library.history.HistoryFragmentState
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import org.mozilla.fenix.library.history.HistoryFragmentStore
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class MenuBindingTest {
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@get:Rule
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val coroutinesTestRule = MainCoroutineRule()
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@Test
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fun `WHEN the mode is updated THEN the menu is invalidated`() {
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var menuInvalidated = false
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val store = HistoryFragmentStore(HistoryFragmentState.initial.copy(mode = HistoryFragmentState.Mode.Syncing))
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val binding = MenuBinding(
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store = store,
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invalidateOptionsMenu = { menuInvalidated = true },
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)
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binding.start()
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store.dispatch(HistoryFragmentAction.FinishSync).joinBlocking()
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assertTrue(menuInvalidated)
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}
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}
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