Fix tests

Author: kpgalligan

TESTING.md

@@ -0,0 +1,36 @@
+# KMMBridge Project Tests
+
+Gradle guidance suggests using include builds to test Gradle plugins. However, after a significant effort to avoid JVM classpath and other related issues, we decided to run tests by starting external Gradle builds.
+
+To do that, we need to locally publish KMMBridge, then point tests projects at that new version. For each test:
+
+* A temp folder is constructed
+* A sample app project is copied to that folder
+* A command line process is run, generally running Gradle to perform whatever task we intend to test
+
+## Publishing KMMBridge locally
+
+We want to publish KMMBridge as version `9.9.9`. This is a fake local version, just for testing. To do that, run the following on the root folder of KMMBridge:
+
+```shell
+./gradlew publishToMavenLocal -PVERSION_NAME=9.9.9 
+```
+
+## Editing the test project
+
+Our simple test project lives at `test-projects/basic`. It points at KMMBridge version `9.9.9`. You should be able to open it directly with IJ or AS.
+
+## Tests
+
+See class `co.touchlab.kmmbridge.SimplePluginTest`. `fun setup()` copies the test project an initializes the test project.
+
+Here is a sample test:
+
+```kotlin
+@Test
+fun runSpmDevBuild() {
+    val result = ProcessHelper.runSh("./gradlew spmDevBuild --stacktrace", workingDir = testProjectDir)
+    logExecResult(result)
+    assertEquals(0, result.status)
+}
+```

kmmbridge-test/src/main/kotlin/co/touchlab/kmmbridge/test/TestArtifactManager.kt

@@ -0,0 +1,22 @@
+package co.touchlab.kmmbridge.test
+
+import co.touchlab.kmmbridge.artifactmanager.ArtifactManager
+import org.gradle.api.Project
+import org.gradle.api.Task
+import org.gradle.api.tasks.TaskProvider
+import java.io.File
+
+class TestArtifactManager : ArtifactManager {
+    private lateinit var url: String
+
+    override fun configure(
+        project: Project,
+        version: String,
+        uploadTask: TaskProvider<Task>,
+        kmmPublishTask: TaskProvider<Task>
+    ) {
+        url = "test://$version"
+    }
+
+    override fun deployArtifact(task: Task, zipFilePath: File, version: String): String = url
+}

test-projects/basic/allshared/build.gradle.kts

@@ -1,4 +1,4 @@
-import co.touchlab.kmmbridge.artifactmanager.TestArtifactManager
+import co.touchlab.kmmbridge.test.TestArtifactManager
 
 plugins {
     alias(libs.plugins.kotlin.multiplatform)