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| 1 | +package com.duckduckgo.js.messaging.impl |
| 2 | + |
| 3 | +import android.webkit.WebView |
| 4 | +import androidx.webkit.ScriptHandler |
| 5 | +import com.duckduckgo.app.browser.api.WebViewCapabilityChecker |
| 6 | +import com.duckduckgo.browser.api.webviewcompat.WebViewCompatWrapper |
| 7 | +import com.duckduckgo.common.test.CoroutineTestRule |
| 8 | +import com.duckduckgo.common.utils.DispatcherProvider |
| 9 | +import com.duckduckgo.js.messaging.api.AddDocumentStartJavaScript |
| 10 | +import com.duckduckgo.js.messaging.api.AddDocumentStartJavaScriptScriptStrategy |
| 11 | +import kotlinx.coroutines.test.runTest |
| 12 | +import org.junit.Before |
| 13 | +import org.junit.Rule |
| 14 | +import org.junit.Test |
| 15 | +import org.mockito.kotlin.any |
| 16 | +import org.mockito.kotlin.mock |
| 17 | +import org.mockito.kotlin.never |
| 18 | +import org.mockito.kotlin.verify |
| 19 | +import org.mockito.kotlin.whenever |
| 20 | + |
| 21 | +class RealAddDocumentStartScriptDelegateTest { |
| 22 | + |
| 23 | + @get:Rule |
| 24 | + var coroutineRule = CoroutineTestRule() |
| 25 | + |
| 26 | + private val mockWebViewCapabilityChecker: WebViewCapabilityChecker = mock() |
| 27 | + private val mockWebViewCompatWrapper: WebViewCompatWrapper = mock() |
| 28 | + private val mockWebView: WebView = mock() |
| 29 | + private val mockScriptHandler: ScriptHandler = mock() |
| 30 | + private val mockDispatcherProvider: DispatcherProvider = mock() |
| 31 | + |
| 32 | + private lateinit var testee: RealAddDocumentStartScriptDelegate |
| 33 | + private lateinit var plugin: AddDocumentStartJavaScript |
| 34 | + |
| 35 | + @Before |
| 36 | + fun setUp() = runTest { |
| 37 | + whenever(mockDispatcherProvider.main()).thenReturn(coroutineRule.testDispatcher) |
| 38 | + testee = RealAddDocumentStartScriptDelegate( |
| 39 | + mockWebViewCapabilityChecker, |
| 40 | + coroutineRule.testScope, |
| 41 | + mockDispatcherProvider, |
| 42 | + mockWebViewCompatWrapper, |
| 43 | + ) |
| 44 | + } |
| 45 | + |
| 46 | + @Test |
| 47 | + fun whenFeatureEnabledAndCapabilitySupportedThenInjectScript() = runTest { |
| 48 | + val mockStrategy = createMockStrategy(canInject = true, scriptString = "test script") |
| 49 | + plugin = testee.createPlugin(mockStrategy) |
| 50 | + whenever(mockWebViewCapabilityChecker.isSupported(any())).thenReturn(true) |
| 51 | + whenever(mockWebViewCompatWrapper.addDocumentStartJavaScript(any(), any(), any())).thenReturn(mockScriptHandler) |
| 52 | + |
| 53 | + plugin.addDocumentStartJavaScript(mockWebView) |
| 54 | + |
| 55 | + verify(mockWebViewCompatWrapper).addDocumentStartJavaScript(mockWebView, "test script", setOf("*")) |
| 56 | + } |
| 57 | + |
| 58 | + @Test |
| 59 | + fun whenFeatureDisabledThenDoNotInjectScript() = runTest { |
| 60 | + val mockStrategy = createMockStrategy(canInject = false, scriptString = "test script") |
| 61 | + plugin = testee.createPlugin(mockStrategy) |
| 62 | + whenever(mockWebViewCapabilityChecker.isSupported(any())).thenReturn(true) |
| 63 | + |
| 64 | + plugin.addDocumentStartJavaScript(mockWebView) |
| 65 | + |
| 66 | + verify(mockWebViewCompatWrapper, never()).addDocumentStartJavaScript(any(), any(), any()) |
| 67 | + } |
| 68 | + |
| 69 | + @Test |
| 70 | + fun whenCapabilityNotSupportedThenDoNotInjectScript() = runTest { |
| 71 | + val mockStrategy = createMockStrategy(canInject = true, scriptString = "test script") |
| 72 | + plugin = testee.createPlugin(mockStrategy) |
| 73 | + whenever(mockWebViewCapabilityChecker.isSupported(any())).thenReturn(false) |
| 74 | + |
| 75 | + plugin.addDocumentStartJavaScript(mockWebView) |
| 76 | + |
| 77 | + verify(mockWebViewCompatWrapper, never()).addDocumentStartJavaScript(any(), any(), any()) |
| 78 | + } |
| 79 | + |
| 80 | + @Test |
| 81 | + fun whenScriptStringSameAsCurrentThenDoNotReinject() = runTest { |
| 82 | + val mockStrategy = createMockStrategy(canInject = true, scriptString = "test script") |
| 83 | + plugin = testee.createPlugin(mockStrategy) |
| 84 | + whenever(mockWebViewCapabilityChecker.isSupported(any())).thenReturn(true) |
| 85 | + whenever(mockWebViewCompatWrapper.addDocumentStartJavaScript(any(), any(), any())).thenReturn(mockScriptHandler) |
| 86 | + |
| 87 | + plugin.addDocumentStartJavaScript(mockWebView) |
| 88 | + plugin.addDocumentStartJavaScript(mockWebView) |
| 89 | + |
| 90 | + verify(mockWebViewCompatWrapper).addDocumentStartJavaScript(mockWebView, "test script", setOf("*")) |
| 91 | + } |
| 92 | + |
| 93 | + @Test |
| 94 | + fun whenScriptStringDifferentThenRemoveOldAndInjectNew() = runTest { |
| 95 | + val mockStrategy: AddDocumentStartJavaScriptScriptStrategy = mock() |
| 96 | + whenever(mockStrategy.canInject()).thenReturn(true) |
| 97 | + whenever(mockStrategy.getScriptString()).thenReturn("script 1") |
| 98 | + whenever(mockStrategy.allowedOriginRules).thenReturn(setOf("*")) |
| 99 | + plugin = testee.createPlugin(mockStrategy) |
| 100 | + whenever(mockWebViewCapabilityChecker.isSupported(any())).thenReturn(true) |
| 101 | + whenever(mockWebViewCompatWrapper.addDocumentStartJavaScript(any(), any(), any())).thenReturn(mockScriptHandler) |
| 102 | + |
| 103 | + plugin.addDocumentStartJavaScript(mockWebView) |
| 104 | + |
| 105 | + whenever(mockStrategy.getScriptString()).thenReturn("script 2") |
| 106 | + |
| 107 | + plugin.addDocumentStartJavaScript(mockWebView) |
| 108 | + |
| 109 | + verify(mockScriptHandler).remove() |
| 110 | + verify(mockWebViewCompatWrapper).addDocumentStartJavaScript(mockWebView, "script 2", setOf("*")) |
| 111 | + } |
| 112 | + |
| 113 | + private fun createMockStrategy(canInject: Boolean, scriptString: String): AddDocumentStartJavaScriptScriptStrategy { |
| 114 | + return object : AddDocumentStartJavaScriptScriptStrategy { |
| 115 | + override suspend fun canInject(): Boolean = canInject |
| 116 | + override suspend fun getScriptString(): String = scriptString |
| 117 | + override val allowedOriginRules: Set<String> = setOf("*") |
| 118 | + } |
| 119 | + } |
| 120 | +} |
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