test(jetbrains): stop frontend tests opening a real browser

packages/kilo-jetbrains/frontend/src/test/kotlin/ai/kilocode/client/agentManager/AgentManagerPanelTest.kt

@@ -24,6 +24,7 @@ import ai.kilocode.client.testing.TestCoroutines
 import ai.kilocode.client.testing.pumpEdt
 import ai.kilocode.client.testing.TestUiTimers
 import ai.kilocode.client.testing.fire
+import ai.kilocode.client.testing.installBrowser
 import ai.kilocode.client.ui.list.ActiveListBadge
 import ai.kilocode.client.ui.list.ActiveListItem
 import ai.kilocode.client.ui.list.ActiveListMetrics
@@ -69,6 +70,7 @@ class AgentManagerPanelTest : BasePlatformTestCase() {
 
     override fun setUp() {
         super.setUp()
+        installBrowser()
         coroutines = TestCoroutines()
         rpc = FakeWorktreeRpcApi()
         service = KiloWorktreeService(coroutines.scope, rpc)

packages/kilo-jetbrains/frontend/src/test/kotlin/ai/kilocode/client/agentManager/worktree/GhBannerTest.kt

@@ -4,6 +4,7 @@ import ai.kilocode.client.testing.FakeWorktreeRpcApi
 import ai.kilocode.client.testing.TestCoroutines
 import ai.kilocode.client.testing.pumpEdt
 import ai.kilocode.client.testing.TestUiTimers
+import ai.kilocode.client.testing.installBrowser
 import ai.kilocode.client.util.edtWait
 import ai.kilocode.rpc.dto.GhAvailability
 import com.intellij.openapi.application.ApplicationManager
@@ -22,6 +23,7 @@ class GhBannerTest : BasePlatformTestCase() {
 
     override fun setUp() {
         super.setUp()
+        installBrowser()
         coroutines = TestCoroutines()
         rpc = FakeWorktreeRpcApi()
         timers = TestUiTimers()

packages/kilo-jetbrains/frontend/src/test/kotlin/ai/kilocode/client/agentManager/worktree/GhStatusCoordinatorTest.kt

@@ -4,6 +4,7 @@ import ai.kilocode.client.testing.FakeWorktreeRpcApi
 import ai.kilocode.client.testing.TestCoroutines
 import ai.kilocode.client.testing.pumpEdt
 import ai.kilocode.client.testing.TestUiTimers
+import ai.kilocode.client.testing.installBrowser
 import ai.kilocode.client.util.edtWait
 import ai.kilocode.rpc.dto.GhAvailability
 import com.intellij.openapi.application.ApplicationManager
@@ -21,6 +22,7 @@ class GhStatusCoordinatorTest : BasePlatformTestCase() {
 
     override fun setUp() {
         super.setUp()
+        installBrowser()
         coroutines = TestCoroutines()
         rpc = FakeWorktreeRpcApi()
         timers = TestUiTimers()

packages/kilo-jetbrains/frontend/src/test/kotlin/ai/kilocode/client/settings/providers/ProvidersSettingsUiTest.kt

@@ -4,6 +4,7 @@ import ai.kilocode.client.util.edtWait
 import ai.kilocode.client.app.KiloProviderService
 import ai.kilocode.client.plugin.KiloBundle
 import ai.kilocode.client.testing.FakeProviderRpcApi
+import ai.kilocode.client.testing.installBrowser
 import ai.kilocode.client.ui.UiStyle
 import ai.kilocode.client.ui.list.ActiveListActionCell
 import ai.kilocode.client.ui.list.ActiveListConfig
@@ -985,6 +986,7 @@ class ProvidersSettingsUiTest : BasePlatformTestCase() {
 
     fun `test provider oauth auto response shows device auth panel`() {
         val callback = CompletableDeferred<ai.kilocode.rpc.dto.ProviderActionResultDto>()
+        val browser = installBrowser()
         val rpc = installProvider(
             ProviderSettingsDto(
                 providers = listOf(provider("openai", "OpenAI")),
@@ -1016,6 +1018,7 @@ class ProvidersSettingsUiTest : BasePlatformTestCase() {
             assertTrue(t, t.contains("Open Browser"))
             assertTrue(t, t.contains("Cancel"))
             assertEquals("https://auth.openai.com/device", fieldsByName(panel, "kilo.provider.oauth.url").single().text)
+            assertEquals(listOf("https://auth.openai.com/device"), browser.urls)
             val qr = components(panel).filterIsInstance<JBLabel>().single { it.name == "kilo.provider.oauth.qr" }
             assertNotNull(qr.icon)
         }

packages/kilo-jetbrains/frontend/src/test/kotlin/ai/kilocode/client/testing/FakeBrowserLauncher.kt

@@ -0,0 +1,37 @@
+package ai.kilocode.client.testing
+
+import com.intellij.ide.browsers.BrowserLauncher
+import com.intellij.ide.browsers.WebBrowser
+import com.intellij.openapi.application.ApplicationManager
+import com.intellij.openapi.project.Project
+import com.intellij.testFramework.fixtures.BasePlatformTestCase
+import com.intellij.testFramework.replaceService
+import java.nio.file.Path
+
+class FakeBrowserLauncher : BrowserLauncher() {
+    val urls = mutableListOf<String>()
+    val files = mutableListOf<Path>()
+
+    override fun open(url: String) {
+        urls.add(url)
+    }
+
+    @Suppress("DEPRECATION")
+    override fun browse(file: java.io.File) {
+        files.add(file.toPath())
+    }
+
+    override fun browse(file: Path) {
+        files.add(file)
+    }
+
+    override fun browse(url: String, browser: WebBrowser?, project: Project?) {
+        urls.add(url)
+    }
+}
+
+fun BasePlatformTestCase.installBrowser(): FakeBrowserLauncher {
+    val fake = FakeBrowserLauncher()
+    ApplicationManager.getApplication().replaceService(BrowserLauncher::class.java, fake, testRootDisposable)
+    return fake
+}