final String result = Base64Util.encode(new byte[0]);
        assertEquals("Empty array should return empty string", "", result);
    }

    /**
     * Test encode with null returns empty string
     *
     * @throws Exception
     */
    public void testEncode_Null() throws Exception {
        final String result = Base64Util.encode(null);

			Field: &schema.Field{Name: "Name1", Unique: true},
		},
	}
	for k, result := range results {
		v, ok := constraints[k]
		if !ok {
			t.Errorf("Failed to found unique constraint %v from parsed constraints %+v", k, constraints)
		}
		tests.AssertObjEqual(t, result, v, "Name")
		tests.AssertObjEqual(t, result.Field, v.Field, "Name", "Unique", "UniqueIndex")
	}

    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + eventType;
        result = prime * result + ((exception == null) ? 0 : exception.hashCode());
        result = prime * result + ((localFile == null) ? 0 : localFile.hashCode());
        result = prime * result + requestType;
        return result;
    }

    @Override
    public boolean equals(Object obj) {

			buildNames = append(buildNames, c.Name())
			buildNamesMap[c.Name()] = true
		}

		stmt.AddClause(c)
	}

	stmt.Build(buildNames...)

	if strings.TrimSpace(stmt.SQL.String()) != result {
		t.Errorf("SQL expects %v got %v", result, stmt.SQL.String())
	}

	if !reflect.DeepEqual(stmt.Vars, vars) {
		t.Errorf("Vars expects %+v got %v", stmt.Vars, vars)
	}

     * @param result The interim result of the first phase of model building, must not be {@code null}.
     * @return The result of the model building, never {@code null}.
     * @throws ModelBuildingException If the effective model could not be built.
     */
    ModelBuildingResult build(ModelBuildingRequest request, ModelBuildingResult result) throws ModelBuildingException;

    /**

    }

    @Override
    protected <RESULT extends FailureUrl> RESULT createEntity(Map<String, Object> source, Class<? extends RESULT> entityType) {
        try {
            final RESULT result = entityType.newInstance();
            result.setConfigId(DfTypeUtil.toString(source.get("configId")));
            result.setErrorCount(DfTypeUtil.toInteger(source.get("errorCount")));

    }

    @Override
    protected <RESULT extends RequestHeader> RESULT createEntity(Map<String, Object> source, Class<? extends RESULT> entityType) {
        try {
            final RESULT result = entityType.newInstance();
            result.setCreatedBy(DfTypeUtil.toString(source.get("createdBy")));
            result.setCreatedTime(DfTypeUtil.toLong(source.get("createdTime")));
            result.setName(DfTypeUtil.toString(source.get("name")));

     *
     * @param context the upgrade context
     * @param result the upgrade result
     */
    protected void logSummary(UpgradeContext context, UpgradeResult result) {
        context.println();
        context.info(getDescription() + " Summary:");
        context.indent();
        context.info(result.modifiedCount() + " POM(s) modified");
        context.info(result.unmodifiedCount() + " POM(s) needed no changes");

    for (CollectStrategy scheme : CollectStrategy.values()) {
      A finalAccum = scheme.result(collector, inputs);
      if (collector.characteristics().contains(Collector.Characteristics.IDENTITY_FINISH)) {
        @SuppressWarnings("unchecked") // `R` and `A` match for an `IDENTITY_FINISH`
        R result = (R) finalAccum;
        assertEquivalent(expectedResult, result);
      }

            cache.put(session, cacheKey, new Record(result.getVersion(), result.getRepository()));
        }

        return result;
    }

    private boolean resolve(VersionResult result, Map<String, VersionInfo> infos, String key) {
        VersionInfo info = infos.get(key);
        if (info != null) {
            result.setVersion(info.version);
            result.setRepository(info.repository);
        }