Implement simple cli integration test

2 files changed, 87 insertions, 0 deletions

diff --git a/integration-tests/cli/src/main/kotlin/org/jetbrains/dokka/it/cli/AbstractCliIntegrationTest.kt b/integration-tests/cli/src/main/kotlin/org/jetbrains/dokka/it/cli/AbstractCliIntegrationTest.kt
new file mode 100644
index 00000000..7f6f9433
--- /dev/null
+++ b/integration-tests/cli/src/main/kotlin/org/jetbrains/dokka/it/cli/AbstractCliIntegrationTest.kt
@@ -0,0 +1,36 @@
+package org.jetbrains.dokka.it.cli
+
+import org.jetbrains.dokka.it.AbstractIntegrationTest
+import java.io.File
+import kotlin.test.BeforeTest
+import kotlin.test.assertTrue
+
+abstract class AbstractCliIntegrationTest : AbstractIntegrationTest() {
+
+    protected val cliJarFile: File by lazy {
+        File(temporaryTestFolder.root, "dokka.jar")
+    }
+
+    protected val basePluginJarFile: File by lazy {
+        File(temporaryTestFolder.root, "base-plugin.jar")
+    }
+
+    @BeforeTest
+    fun copyJarFiles() {
+        val cliJarPathEnvironmentKey = "CLI_JAR_PATH"
+        val cliJarFile = File(System.getenv(cliJarPathEnvironmentKey))
+        assertTrue(
+            cliJarFile.exists() && cliJarFile.isFile,
+            "Missing path to CLI jar System.getenv($cliJarPathEnvironmentKey)"
+        )
+        cliJarFile.copyTo(this.cliJarFile)
+
+        val basePluginPathEnvironmentKey = "BASE_PLUGIN_JAR_PATH"
+        val basePluginJarFile = File(System.getenv(basePluginPathEnvironmentKey))
+        assertTrue(
+            basePluginJarFile.exists() && basePluginJarFile.isFile,
+            "Missing path to base plugin jar System.getenv($basePluginPathEnvironmentKey)"
+        )
+        basePluginJarFile.copyTo(this.basePluginJarFile)
+    }
+}
diff --git a/integration-tests/cli/src/main/kotlin/org/jetbrains/dokka/it/cli/processUtils.kt b/integration-tests/cli/src/main/kotlin/org/jetbrains/dokka/it/cli/processUtils.kt
new file mode 100644
index 00000000..d2fa3b31
--- /dev/null
+++ b/integration-tests/cli/src/main/kotlin/org/jetbrains/dokka/it/cli/processUtils.kt
@@ -0,0 +1,51 @@
+package org.jetbrains.dokka.it.cli
+
+import kotlinx.coroutines.CompletableDeferred
+import kotlinx.coroutines.async
+import kotlinx.coroutines.runBlocking
+import kotlin.concurrent.thread
+
+class ProcessResult(
+    val exitCode: Int,
+    val output: String
+)
+
+fun Process.awaitProcessResult() = runBlocking {
+    val exitCode = async { awaitExitCode() }
+    val output = async { awaitOutput() }
+    ProcessResult(
+        exitCode.await(),
+        output.await()
+    )
+}
+
+private suspend fun Process.awaitExitCode(): Int {
+    val deferred = CompletableDeferred<Int>()
+    thread {
+        try {
+            deferred.complete(this.waitFor())
+        } catch (e: Throwable) {
+            deferred.completeExceptionally(e)
+        }
+    }
+
+    return deferred.await()
+}
+
+private suspend fun Process.awaitOutput(): String {
+    val deferred = CompletableDeferred<String>()
+    thread {
+        try {
+            var string = ""
+            this.inputStream.bufferedReader().forEachLine { line ->
+                println(line)
+                string += line + System.lineSeparator()
+            }
+            deferred.complete(string)
+        } catch (e: Throwable) {
+            deferred.completeExceptionally(e)
+        }
+    }
+
+    return deferred.await()
+}