add error tests

test/de/inetsoftware/jwebassembly/err/RuntimeErrors.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright 2017 Volker Berlin (i-net software)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package de.inetsoftware.jwebassembly.err;
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.Collection;
+
+import org.junit.ClassRule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameters;
+import org.webassembly.annotation.Export;
+
+import de.inetsoftware.jwebassembly.ScriptEngine;
+import de.inetsoftware.jwebassembly.WasmRule;
+
+/**
+ * @author Volker Berlin
+ */
+@RunWith(Parameterized.class)
+public class RuntimeErrors {
+
+    @ClassRule
+    public static WasmRule     rule = new WasmRule( TestClass.class );
+
+    private final ScriptEngine script;
+
+    public RuntimeErrors( ScriptEngine script ) {
+        this.script = script;
+    }
+
+    @Parameters( name = "{0}" )
+    public static Collection<Object[]> data() {
+        return ScriptEngine.testParams();
+    }
+
+    @Test
+    public void longReturn() {
+        assertEquals( "TypeError: cannot pass i64 to or from JS", rule.evalWasm( script, "longReturn" ) );
+    }
+
+    static class TestClass {
+
+        @Export
+        static long longReturn() {
+            return Long.MAX_VALUE;
+        }
+    }
+}