Method testEquals

java/kudu-client/src/test/java/org/TestSchema.java:29–134

()

public class TestSchema {

  @Test
  public void testEquals() {
    final ColumnSchema col1 = new ColumnSchema.ColumnSchemaBuilder("c0", Type.INT32)
                                              .nullable(false)
                                              .key(true)
                                              .build();
    final ColumnSchema col2 = new ColumnSchema.ColumnSchemaBuilder("c1", Type.INT32)
                                              .nullable(false)
                                              .build();

    ArrayList<ColumnSchema> columns = new ArrayList<>();
    columns.add(col1);
    columns.add(col2);
    final Schema schema = new Schema(columns);

    ArrayList<ColumnSchema> columns1 = new ArrayList<>();
    columns1.add(col1);
    columns1.add(col2);
    final Schema schema1 = new Schema(columns1);

    // Two objects are the same.
    assertTrue(schema1.equals(schema1));
    // One of object is not type of 'Schema'.
    assertFalse(schema1.equals(columns1));
    // Two schemas are the same structure.
    assertTrue(schema1.equals(schema));

    final ColumnSchema col3 = new ColumnSchema.ColumnSchemaBuilder("c2", Type.INT32)
                                              .nullable(false)
                                              .key(true)
                                              .build();

    ArrayList<ColumnSchema> columns2 = new ArrayList<>();
    columns2.add(col1);
    columns2.add(col3);
    final Schema schema2 = new Schema(columns2);

    // Two schemas have different number of primary keys.
    assertFalse(schema1.equals(schema2));

    ArrayList<ColumnSchema> columns3 = new ArrayList<>();
    columns3.add(col1);
    columns3.add(col2);
    columns3.add(col3);
    final Schema schema3 = new Schema(columns3);

    // Two schemas have different number of columns.
    assertFalse(schema1.equals(schema3));

    final ColumnSchema col4 = new ColumnSchema.ColumnSchemaBuilder("c3", Type.INT32)
                                              .nullable(false)
                                              .build();

    ArrayList<ColumnSchema> columns4 = new ArrayList<>();
    columns4.add(col1);
    columns4.add(col2);
    columns4.add(col4);
    final Schema schema4 = new Schema(columns4);