micropython: add micropython component

components/language/micropython/tests/jni/README

@@ -0,0 +1,12 @@
+Running "jni" module tests (as well as just using this module) requires
+being able to load libjvm.so, which requires path to it set via
+LD_LIBRARY_PATH environment variable. This path is not set automatically
+and there is no easy way to guess it, because there can be installed
+different implementations of JVM, for one implementation, there can be
+different versions, and single version may include different variants
+of JVM.
+
+For example, for OpenJDK 7 on x86_64, following may work:
+
+LD_LIBRARY_PATH=/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server ./run-tests.py jni/*.py
+

components/language/micropython/tests/jni/list.py

@@ -0,0 +1,16 @@
+import jni
+
+try:
+    ArrayList = jni.cls("java/util/ArrayList")
+except:
+    print("SKIP")
+    raise SystemExit
+
+l = ArrayList()
+print(l)
+l.add("one")
+l.add("two")
+
+print(l.toString())
+print(l)
+print(l[0], l[1])

components/language/micropython/tests/jni/list.py.exp

@@ -0,0 +1,4 @@
+[]
+[one, two]
+[one, two]
+one two

components/language/micropython/tests/jni/object.py

@@ -0,0 +1,16 @@
+import jni
+
+try:
+    Integer = jni.cls("java/lang/Integer")
+except:
+    print("SKIP")
+    raise SystemExit
+
+# Create object
+i = Integer(42)
+print(i)
+# Call object method
+print(i.hashCode())
+# Pass object to another method
+System = jni.cls("java/lang/System")
+System.out.println(i)

components/language/micropython/tests/jni/object.py.exp

@@ -0,0 +1,3 @@
+42
+42
+42

components/language/micropython/tests/jni/system_out.py

@@ -0,0 +1,9 @@
+try:
+    import jni
+
+    System = jni.cls("java/lang/System")
+except:
+    print("SKIP")
+    raise SystemExit
+
+System.out.println("Hello, Java!")

components/language/micropython/tests/jni/system_out.py.exp

@@ -0,0 +1 @@
+Hello, Java!