@Test
public void replaceLobWithTable() throws StructureGraphComparisonException {
ISqlSchemaFrontend frontend1 = new H2SchemaFrontend(DATABASE_FILE_PATH);
ISqlSchemaFrontend frontend2 = new H2SchemaFrontend(REPLACE_LOB_WITH_TABLE_DATABASE_FILE_PATH);
DirectedGraph<IStructureElement, DefaultEdge> schema1 = frontend1.createSqlSchema();
DirectedGraph<IStructureElement, DefaultEdge> schema2 = frontend2.createSqlSchema();
SqlSchemaComparer comparer = new SqlSchemaComparer(schema1, schema2);
SqlSchemaComparisonResult result = comparer.comparisonResult;
assertEquals(
29,
SqlElementFactory.getSqlElementsOfType(SqlColumnVertex.class, schema1.vertexSet()).size());
assertEquals(
33,
SqlElementFactory.getSqlElementsOfType(SqlColumnVertex.class, schema2.vertexSet()).size());
for (Entry<ISqlElement, SchemaModification> entry : result.getModifications().entrySet()) {
if (entry.getValue() == SchemaModification.CREATE_TABLE) {
assertEquals(REPLACE_LOB_WITH_TABLE, entry.getKey().getName());
}
if (entry.getValue() == SchemaModification.DELETE_COLUMN) {
assertEquals(REPLACE_LOB_WITH_COLUMN, entry.getKey().getName());
}
}
}
@Test
public void databaseConnectionEstablishedCorrectly() {
ISqlSchemaFrontend frontend = new H2SchemaFrontend(DATABASE_FILE_PATH);
DirectedGraph<IStructureElement, DefaultEdge> schema = frontend.createSqlSchema();
Set<ISqlElement> tables =
SqlElementFactory.getSqlElementsOfType(SqlTableVertex.class, schema.vertexSet());
Set<ISqlElement> columns =
SqlElementFactory.getSqlElementsOfType(SqlColumnVertex.class, schema.vertexSet());
ArrayList<ISqlElement> mandatoryColumns = new ArrayList<>();
int tableCount = tables.size();
int columnCount = columns.size();
for (ISqlElement column : columns) {
if (column.isMandatory() && !isPrimaryKey(schema, column)) {
mandatoryColumns.add(column);
}
}
assertNotNull(schema);
assertEquals(7, tableCount);
assertEquals(29, columnCount);
assertEquals(
7,
TestHelper.getColumnWithConstraint(schema, IColumnConstraint.ConstraintType.PRIMARY_KEY)
.size());
assertEquals(1, mandatoryColumns.size());
assertEquals("[Column] DEPARTMENTS.NAME", mandatoryColumns.get(0).toString());
}
@Test
public void replaceColumnDetectedCorrectly() throws StructureGraphComparisonException {
ISqlSchemaFrontend frontend1 = new H2SchemaFrontend(DATABASE_FILE_PATH);
ISqlSchemaFrontend frontend2 = new H2SchemaFrontend(REPLACE_COLUMN_DATABASE_FILE_PATH);
DirectedGraph<IStructureElement, DefaultEdge> schema1 = frontend1.createSqlSchema();
DirectedGraph<IStructureElement, DefaultEdge> schema2 = frontend2.createSqlSchema();
SqlSchemaComparer comparer = new SqlSchemaComparer(schema1, schema2);
SqlSchemaComparisonResult result = comparer.comparisonResult;
assertEquals(
29,
SqlElementFactory.getSqlElementsOfType(SqlColumnVertex.class, schema1.vertexSet()).size());
assertEquals(
29,
SqlElementFactory.getSqlElementsOfType(SqlColumnVertex.class, schema2.vertexSet()).size());
Entry<ISqlElement, SchemaModification> renameColumnEntry =
TestHelper.getModificationOfType(result, SchemaModification.RENAME_COLUMN);
Entry<ISqlElement, SchemaModification> replaceColumnTypeEntry =
TestHelper.getModificationOfType(result, SchemaModification.CHANGE_COLUMN_TYPE);
assertNotNull(renameColumnEntry);
assertEquals(REPLACE_COLUMN_NAME, renameColumnEntry.getKey().getName());
assertNotNull(replaceColumnTypeEntry);
assertEquals(
REPLACE_COLUMN_TYPE, ((ColumnTypeVertex) replaceColumnTypeEntry.getKey()).getColumnType());
}
@Test
public void tableHasColumnRelationsEstablishedCorrectly() {
ISqlSchemaFrontend frontend = new H2SchemaFrontend(DATABASE_FILE_PATH);
DirectedGraph<IStructureElement, DefaultEdge> schema = frontend.createSqlSchema();
int tableHasColumnEdges = 0;
for (DefaultEdge edge : schema.edgeSet())
if (edge instanceof TableHasColumnEdge) tableHasColumnEdges++;
assertEquals(29, tableHasColumnEdges);
}
@Test
public void foreignKeysEstablishedCorrectly() {
ISqlSchemaFrontend frontend = new H2SchemaFrontend(DATABASE_FILE_PATH);
DirectedGraph<IStructureElement, DefaultEdge> schema = frontend.createSqlSchema();
int foreignKeyEdges = 0;
for (DefaultEdge edge : schema.edgeSet())
if (edge instanceof ForeignKeyRelationEdge) foreignKeyEdges++;
assertEquals(7, foreignKeyEdges);
}
@Test
public void droppedColumnDetectedCorrectly() throws StructureGraphComparisonException {
ISqlSchemaFrontend frontend1 = new H2SchemaFrontend(DATABASE_FILE_PATH);
ISqlSchemaFrontend frontend2 = new H2SchemaFrontend(DROPPED_COLUMN_DATABASE_FILE_PATH);
DirectedGraph<IStructureElement, DefaultEdge> schema1 = frontend1.createSqlSchema();
DirectedGraph<IStructureElement, DefaultEdge> schema2 = frontend2.createSqlSchema();
SqlSchemaComparer comparer = new SqlSchemaComparer(schema1, schema2);
SqlSchemaComparisonResult result = comparer.comparisonResult;
assertEquals(
29,
SqlElementFactory.getSqlElementsOfType(SqlColumnVertex.class, schema1.vertexSet()).size());
assertEquals(
28,
SqlElementFactory.getSqlElementsOfType(SqlColumnVertex.class, schema2.vertexSet()).size());
Entry<ISqlElement, SchemaModification> entry =
TestHelper.getModificationOfType(result, SchemaModification.DELETE_COLUMN);
assertNotNull(entry);
assertEquals(DROPPED_COLUMN_NAME, entry.getKey().getName());
}
@Test
public void droppedTableDetectedCorrectly() throws StructureGraphComparisonException {
ISqlSchemaFrontend frontend1 = new H2SchemaFrontend(DATABASE_FILE_PATH);
ISqlSchemaFrontend frontend2 = new H2SchemaFrontend(DROPPED_TABLE_DATABASE_FILE_PATH);
DirectedGraph<IStructureElement, DefaultEdge> schema1 = frontend1.createSqlSchema();
DirectedGraph<IStructureElement, DefaultEdge> schema2 = frontend2.createSqlSchema();
SqlSchemaComparer comparer = new SqlSchemaComparer(schema1, schema2);
SqlSchemaComparisonResult result = comparer.comparisonResult;
assertEquals(
7,
SqlElementFactory.getSqlElementsOfType(SqlTableVertex.class, schema1.vertexSet()).size());
assertEquals(
6,
SqlElementFactory.getSqlElementsOfType(SqlTableVertex.class, schema2.vertexSet()).size());
for (Entry<ISqlElement, SchemaModification> entry : result.getModifications().entrySet()) {
if (entry.getValue() == SchemaModification.DELETE_TABLE) {
assertEquals(SchemaModification.DELETE_TABLE, entry.getValue());
assertEquals(DROPPED_TABLE_NAME, entry.getKey().getName());
}
}
}
@Test(expected = IllegalArgumentException.class)
public void throwsInvalidArgumentExceptionOnInvalidFilePath() {
ISqlSchemaFrontend frontend = new H2SchemaFrontend("dadidadam");
frontend.createSqlSchema();
}
@Test(expected = InvalidPathException.class)
public void throwsInvalidFilePathExceptionForNull() {
ISqlSchemaFrontend frontend = new H2SchemaFrontend(null);
frontend.createSqlSchema();
}