1/*
2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23package org.openjdk.testlib.java.util.stream;
24
25import org.testng.Assert;
26
27import java.util.EnumSet;
28import java.util.stream.*;
29
30class TestFlagExpectedOp<T> extends FlagDeclaringOp<T> {
31
32    static class Builder<T> {
33        final int flags;
34        StreamShape shape = StreamShape.REFERENCE;
35
36        EnumSet<StreamOpFlag> known = EnumSet.noneOf(StreamOpFlag.class);
37        EnumSet<StreamOpFlag> preserve = EnumSet.noneOf(StreamOpFlag.class);
38        EnumSet<StreamOpFlag> notKnown = EnumSet.noneOf(StreamOpFlag.class);
39
40        Builder(int flags) {
41            this.flags = flags;
42        }
43
44        Builder<T> known(EnumSet<StreamOpFlag> known) {
45            this.known = known;
46            return this;
47        }
48
49        Builder<T> preserve(EnumSet<StreamOpFlag> preserve) {
50            this.preserve = preserve;
51            return this;
52        }
53
54        Builder<T> notKnown(EnumSet<StreamOpFlag> notKnown) {
55            this.notKnown = notKnown;
56            return this;
57        }
58
59        Builder<T> shape(StreamShape shape) {
60            this.shape = shape;
61            return this;
62        }
63
64        TestFlagExpectedOp<T> build() {
65            return new TestFlagExpectedOp<>(flags, known, preserve, notKnown, shape);
66        }
67    }
68
69    final EnumSet<StreamOpFlag> known;
70    final EnumSet<StreamOpFlag> preserve;
71    final EnumSet<StreamOpFlag> notKnown;
72    final StreamShape shape;
73
74    TestFlagExpectedOp(int flags,
75                       EnumSet<StreamOpFlag> known,
76                       EnumSet<StreamOpFlag> preserve,
77                       EnumSet<StreamOpFlag> notKnown) {
78        this(flags, known, preserve, notKnown, StreamShape.REFERENCE);
79    }
80
81    TestFlagExpectedOp(int flags,
82                       EnumSet<StreamOpFlag> known,
83                       EnumSet<StreamOpFlag> preserve,
84                       EnumSet<StreamOpFlag> notKnown,
85                       StreamShape shape) {
86        super(flags);
87        this.known = known;
88        this.preserve = preserve;
89        this.notKnown = notKnown;
90        this.shape = shape;
91    }
92
93    @Override
94    public StreamShape outputShape() {
95        return shape;
96    }
97
98    @Override
99    public StreamShape inputShape() {
100        return shape;
101    }
102
103    @Override
104    @SuppressWarnings({"rawtypes", "unchecked"})
105    public Sink<T> opWrapSink(int flags, boolean parallel, Sink upstream) {
106        assertFlags(flags);
107        return upstream;
108    }
109
110    private void assertFlags(int flags) {
111        for (StreamOpFlag f : known) {
112            Assert.assertTrue(f.isKnown(flags),
113                              String.format("Flag %s is not known, but should be known.", f.toString()));
114        }
115
116        for (StreamOpFlag f : preserve) {
117            Assert.assertTrue(f.isPreserved(flags),
118                              String.format("Flag %s is not preserved, but should be preserved.", f.toString()));
119        }
120
121        for (StreamOpFlag f : notKnown) {
122            Assert.assertFalse(f.isKnown(flags),
123                               String.format("Flag %s is known, but should be not known.", f.toString()));
124        }
125    }
126}
127