Js test configuration and JS meta implementation

build.gradle.kts

@@ -1,4 +1,8 @@
+import com.moowork.gradle.node.NodeExtension
+import com.moowork.gradle.node.npm.NpmTask
+import com.moowork.gradle.node.task.NodeTask
 import org.jetbrains.kotlin.gradle.dsl.KotlinMultiplatformExtension
+import org.jetbrains.kotlin.gradle.tasks.Kotlin2JsCompile
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 buildscript {
@@ -26,6 +30,7 @@ buildscript {
 
 plugins {
     id("com.jfrog.artifactory") version "4.8.1" apply false
+    id("com.moowork.node") version "1.3.1" apply false
 //    id("org.jetbrains.kotlin.multiplatform") apply false
 }
 
@@ -62,6 +67,8 @@ subprojects {
 //            classifier = "javadoc"
 //    }
 
+    apply(plugin = "com.moowork.node")
+
     // Create empty jar for sources classifier to satisfy maven requirements
     val stubSources by tasks.registering(Jar::class) {
         archiveClassifier.set("sources")
@@ -74,7 +81,7 @@ subprojects {
     }
 
     tasks.withType<KotlinCompile> {
-        kotlinOptions{
+        kotlinOptions {
             jvmTarget = "1.8"
         }
     }
@@ -109,6 +116,40 @@ subprojects {
                         }
                     }
                 }
+
+
+                configure<NodeExtension>{
+                    nodeModulesDir = file("$buildDir/node_modules")
+                }
+
+                val compileKotlinJs by tasks.getting(Kotlin2JsCompile::class)
+                val compileTestKotlinJs by tasks.getting(Kotlin2JsCompile::class)
+
+                val populateNodeModules by tasks.registering(Copy::class) {
+                    dependsOn(compileKotlinJs)
+                    from(compileKotlinJs.destinationDir)
+
+                    compilations["test"].runtimeDependencyFiles.forEach {
+                        if (it.exists() && !it.isDirectory) {
+                            from(zipTree(it.absolutePath).matching { include("*.js") })
+                        }
+                    }
+
+                    into("$buildDir/node_modules")
+                }
+
+                val installMocha by tasks.registering(NpmTask::class) {
+                    setWorkingDir(buildDir)
+                    setArgs(listOf("install", "mocha"))
+                }
+
+                val runMocha by tasks.registering(NodeTask::class) {
+                    dependsOn(compileTestKotlinJs, populateNodeModules, installMocha)
+                    setScript(file("$buildDir/node_modules/mocha/bin/mocha"))
+                    setArgs(listOf(compileTestKotlinJs.outputFile))
+                }
+
+                tasks["jsTest"].dependsOn(runMocha)
             }
 
             sourceSets {

dataforge-meta/src/jsMain/kotlin/hep/dataforge/meta/DynamicMeta.kt

@@ -0,0 +1,64 @@
+package hep.dataforge.meta
+
+import hep.dataforge.names.NameToken
+import hep.dataforge.values.Null
+import hep.dataforge.values.Value
+
+
+//TODO add Meta wrapper for dynamic
+
+/**
+ * Represent or copy this [Meta] to dynamic object to be passed to JS libraries
+ */
+fun Meta.toDynamic(): dynamic {
+    if(this is DynamicMeta) return this.obj
+
+    fun MetaItem<*>.toDynamic(): dynamic = when (this) {
+        is MetaItem.ValueItem -> this.value.value.asDynamic()
+        is MetaItem.NodeItem -> this.node.toDynamic()
+    }
+
+    val res = js("{}")
+    this.items.entries.groupBy { it.key.body }.forEach { (key, value) ->
+        val list = value.map { it.value }
+        res[key] = when (list.size) {
+            1 -> list.first().toDynamic()
+            else -> list.map { it.toDynamic() }
+        }
+    }
+    return res
+}
+
+class DynamicMeta(val obj: dynamic) : Meta {
+    private fun keys() = js("Object.keys(this.obj)") as Array<String>
+
+    private fun isArray(obj: dynamic): Boolean = js("Array.isArray(obj)") as Boolean
+
+    //private fun isObject(obj: dynamic): Boolean = js("typeof obj === 'object'") as Boolean
+
+    private fun asItem(obj: dynamic): MetaItem<DynamicMeta>? {
+        if (obj == null) return MetaItem.ValueItem(Null)
+        return when (jsTypeOf(obj)) {
+            "boolean" -> MetaItem.ValueItem(Value.of(obj as Boolean))
+            "number" -> MetaItem.ValueItem(Value.of(obj as Number))
+            "string" -> MetaItem.ValueItem(Value.of(obj as String))
+            "object" -> MetaItem.NodeItem(DynamicMeta(obj))
+            else -> null
+        }
+    }
+
+    override val items: Map<NameToken, MetaItem<DynamicMeta>>
+        get() = keys().flatMap<String, Pair<NameToken, MetaItem<DynamicMeta>>> { key ->
+            val value = obj[key] ?: return@flatMap emptyList()
+            if (isArray(value)) {
+                return@flatMap (value as Array<dynamic>)
+                    .mapIndexedNotNull() { index, it ->
+                        val item = asItem(it) ?: return@mapIndexedNotNull null
+                        NameToken(key, index.toString()) to item
+                    }
+            } else {
+                val item = asItem(value) ?: return@flatMap emptyList()
+                listOf(NameToken(key) to item)
+            }
+        }.associate { it }
+}

dataforge-meta/src/jsMain/kotlin/hep/dataforge/meta/jsMeta.kt

@@ -1,26 +0,0 @@
-package hep.dataforge.meta
-
-
-//TODO add Meta wrapper for dynamic
-
-/**
- * Represent or copy this [Meta] to dynamic object to be passed to JS libraries
- */
-fun Meta.toDynamic(): dynamic {
-    //if(this is DynamicMeta) return this.obj
-
-    fun MetaItem<*>.toDynamic(): dynamic = when (this) {
-        is MetaItem.ValueItem -> this.value.value.asDynamic()
-        is MetaItem.NodeItem -> this.node.toDynamic()
-    }
-
-    val res = js("{}")
-    this.items.entries.groupBy { it.key.body }.forEach { (key, value) ->
-        val list = value.map { it.value }
-        res[key] = when (list.size) {
-            1 -> list.first().toDynamic()
-            else -> list.map { it.toDynamic() }
-        }
-    }
-    return res
-}

dataforge-meta/src/jsTest/kotlin/hep/dataforge/meta/DynamicMetaTest.kt

@@ -0,0 +1,22 @@
+package hep.dataforge.meta
+
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+
+class DynamicMetaTest {
+
+    @Test
+    fun testDynamicMeta() {
+        val d = js("{}")
+        d.a = 22
+        d.b = "myString"
+        d.ob = js("{}")
+        d.ob.childNode = 18
+        d.ob.booleanNode = true
+
+        val meta = DynamicMeta(d)
+        assertEquals(true, meta["ob.booleanNode"].boolean)
+    }
+
+}