Add tests for reporting errors in imports

This is a follow-up from #143, which was fixing an issue that we
did not detect due to not having tests to check how we report
errors in imports.

tests/org.eclipse.epsilon.eol.engine.test.acceptance/src/org/eclipse/epsilon/eol/engine/test/acceptance/EolAcceptanceTestSuite.java

@@ -89,7 +89,8 @@
 	EnumResolutionTests.class,
 	CircularImportTests.class,
 	ImportCachingTests.class,
-	ItemSelectorTests.class
+	ItemSelectorTests.class,
+	ParseProblemTests.class
 })
 public class EolAcceptanceTestSuite {
 

tests/org.eclipse.epsilon.eol.engine.test.acceptance/src/org/eclipse/epsilon/eol/engine/test/acceptance/ParseProblemTests.java

@@ -0,0 +1,68 @@
+/*********************************************************************
+ * Copyright (c) 2024 The University of York.
+ *
+ * This program and the accompanying materials are made
+ * available under the terms of the Eclipse Public License 2.0
+ * which is available at https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ **********************************************************************/
+package org.eclipse.epsilon.eol.engine.test.acceptance;
+
+import static org.hamcrest.CoreMatchers.allOf;
+import static org.hamcrest.CoreMatchers.containsString;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.junit.Assert.assertEquals;
+
+import java.io.File;
+import java.nio.file.Files;
+
+import org.eclipse.epsilon.eol.EolModule;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
+
+public class ParseProblemTests {
+
+	@Rule
+	public TemporaryFolder tempFolder = new TemporaryFolder();
+
+	private static final String BAD_EOL = "'incomplete string";
+
+	@Test
+	public void missingImport() throws Exception {
+		EolModule module = new EolModule();
+		module.parse("import \"missing.eol\";");
+		assertEquals(1, module.getParseProblems().size());
+		assertThat("Expected parse problem is raised",
+			module.getParseProblems().get(0).getReason(),
+			allOf(
+				containsString("not found"),
+				containsString("missing.eol")
+			));
+	}
+
+	@Test
+	public void parseProblemsLocal() throws Exception {
+		EolModule module = new EolModule();
+		module.parse(BAD_EOL);
+		assertEquals(1, module.getParseProblems().size());
+	}
+
+	@Test
+	public void parseProblemsImported() throws Exception {
+		File fParseProblems = tempFolder.newFile("parseProblems.eol");
+		Files.write(fParseProblems.toPath(), BAD_EOL.getBytes());
+
+		EolModule module = new EolModule();
+		module.parse(String.format("import \"%s\";", fParseProblems.getPath()));
+		assertEquals(1, module.getParseProblems().size());
+		assertThat("Expected parse problem is raised",
+			module.getParseProblems().get(0).getReason(),
+			allOf(
+				containsString("contains errors"),
+				containsString("parseProblems.eol")
+			));
+	}
+
+}