1 files changed, 104 insertions, 0 deletions
diff --git a/tests/org.eclipse.etrice.dctools.tests/src/org/eclipse/etrice/dctools/tests/TestDCNodeAtOffset.xtend b/tests/org.eclipse.etrice.dctools.tests/src/org/eclipse/etrice/dctools/tests/TestDCNodeAtOffset.xtend
new file mode 100644
index 000000000..6b52257c5
--- /dev/null
+++ b/tests/org.eclipse.etrice.dctools.tests/src/org/eclipse/etrice/dctools/tests/TestDCNodeAtOffset.xtend
@@ -0,0 +1,104 @@
+/*******************************************************************************
+ * Copyright (c) 2011 protos software gmbh (http://www.protos.de).
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * CONTRIBUTORS:
+ * 		Henrik Rentz-Reichert (initial contribution)
+ * 
+ *******************************************************************************/
+
+package org.eclipse.etrice.dctools.tests
+
+import org.eclipse.etrice.dctools.fsm.ast.DCParser
+import org.junit.Before
+import org.eclipse.etrice.dctools.fsm.ast.DCLanguage
+import static org.eclipse.etrice.dctools.tests.TestConstants.*
+import org.junit.Test
+import org.eclipse.etrice.dctools.fsm.ast.DCNodeAtOffset
+import static org.junit.Assert.*
+import static org.hamcrest.CoreMatchers.*
+import org.eclipse.etrice.dctools.fsm.ast.nodes.DCAstOtherNode
+import org.eclipse.etrice.dctools.fsm.ast.nodes.DCAstIdentifierNode
+import org.eclipse.etrice.dctools.fsm.ast.nodes.DCAstBracketNode
+
+class TestDCNodeAtOffset {
+		
+	DCParser parser
+	
+	@Before
+	def void createParser() {
+		parser = new DCParser(DCLanguage.C_LANGUAGE)
+	}
+	
+	@Test
+	def void testString() {
+		val ast = parser.parse(TEST_STRING)
+		val result = DCNodeAtOffset.find(ast, 3)
+		assertNotNull(result)
+		assertTrue(result instanceof DCAstOtherNode)
+		assertThat(result.text, is(TEST_STRING))
+	}
+	
+	@Test
+	def void testMemberAccess() {
+		val ast = parser.parse(TEST_MEMBER_ACCESS)
+		var result = DCNodeAtOffset.find(ast, 8)
+		assertNotNull(result)
+		assertTrue(result instanceof DCAstIdentifierNode)
+		assertThat(result.text, is("member"))
+
+		result = DCNodeAtOffset.find(ast, 4)
+		assertNotNull(result)
+		assertTrue(result instanceof DCAstIdentifierNode)
+		assertThat(result.text, is("field"))
+	}
+	
+	@Test
+	def void testArrayMemberAccess() {
+		val ast = parser.parse(TEST_ARRAY_MEMBER_ACCESS)
+		var result = DCNodeAtOffset.find(ast, 14)
+		assertNotNull(result)
+		assertTrue(result instanceof DCAstIdentifierNode)
+		assertThat(result.text, is("member"))
+
+		result = DCNodeAtOffset.find(ast, 4)
+		assertNotNull(result)
+		assertTrue(result instanceof DCAstIdentifierNode)
+		assertThat(result.text, is("field"))
+
+		result = DCNodeAtOffset.find(ast, 7)
+		assertNotNull(result)
+		assertTrue(result instanceof DCAstOtherNode)
+		assertThat(result.text, is("+"))
+	}
+	
+	@Test
+	def void testCode() {
+		val ast = parser.parse(TEST_CODE)
+		var result = DCNodeAtOffset.find(ast, 16)
+		assertNotNull(result)
+		assertTrue(result instanceof DCAstBracketNode)
+		if (result instanceof DCAstBracketNode) {
+			assertThat(result.text, is("()"))
+			assertThat(result.begin, is(15))
+			assertThat(result.end, is(16))
+			assertThat(result.posClose, is(16))
+		}
+	}
+	
+	@Test
+	def void testCode2() {
+		val ast = parser.parse(TEST_CODE2)
+		
+		// note: because line breaks differ on UNIX and Windows we can't use a constant offset here
+		val pos = TEST_CODE2.indexOf("456")+2
+		
+		var result = DCNodeAtOffset.find(ast, pos)
+		assertNotNull(result)
+		assertTrue(result instanceof DCAstOtherNode)
+		assertThat(result.text, is("456"))
+	}
+}