1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.config.model.graph;
import com.yahoo.config.model.ConfigModel;
import com.yahoo.config.model.ConfigModelContext;
import com.yahoo.config.model.test.MockRoot;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import java.util.List;
import java.util.Optional;
import static org.hamcrest.Matchers.is;
import static org.junit.Assert.*;
/**
* @author lulf
* @since 5.1
*/
public class ModelGraphTest {
void assertOrdering(ModelGraph graph, String expectedOrdering) {
List<ModelNode> sortedEntries = graph.topologicalSort();
StringBuilder sb = new StringBuilder();
for (ModelNode<?> node : sortedEntries) {
sb.append(node.builder.getModelClass().getSimpleName());
}
assertThat(sb.toString(), is(expectedOrdering));
}
@Test
public void require_that_dependencies_are_correctly_set() {
ModelGraphBuilder builder = new ModelGraphBuilder();
builder.addBuilder(new GraphMock.BC()).addBuilder(new GraphMock.BB()).addBuilder(new GraphMock.BA());
ModelGraph graph = builder.build();
List<ModelNode> nodes = graph.getNodes();
assertThat(graph.getNodes().size(), is(3));
assertTrue(nodes.get(0).hasDependencies());
assertTrue(nodes.get(1).hasDependencies());
assertFalse(nodes.get(2).hasDependencies());
assertTrue(nodes.get(0).dependsOn(nodes.get(1)));
assertTrue(nodes.get(1).dependsOn(nodes.get(2)));
assertFalse(nodes.get(2).dependsOn(nodes.get(0)));
}
@Test
public void require_that_dependencies_are_correctly_sorted() {
ModelGraph graph = new ModelGraphBuilder().addBuilder(new GraphMock.BC()).addBuilder(new GraphMock.BB()).addBuilder(new GraphMock.BA()).build();
assertOrdering(graph, "ABC");
}
@Test(expected = IllegalArgumentException.class)
public void require_that_cycles_are_detected() {
ModelGraph graph = new ModelGraphBuilder().addBuilder(new GraphMock.BD()).addBuilder(new GraphMock.BE()).build();
assertThat(graph.getNodes().size(), is(2));
assertTrue(graph.getNodes().get(0).dependsOn(graph.getNodes().get(1)));
assertTrue(graph.getNodes().get(1).dependsOn(graph.getNodes().get(0)));
graph.topologicalSort();
}
@Test
public void require_that_instance_can_be_created() {
ModelGraph graph = new ModelGraphBuilder().addBuilder(new GraphMock.BC()).addBuilder(new GraphMock.BB()).addBuilder(new GraphMock.BA()).build();
List<ModelNode> nodes = graph.topologicalSort();
MockRoot root = new MockRoot();
GraphMock.A a = (GraphMock.A) nodes.get(0).createModel(ConfigModelContext.create(null, root, "first"));
GraphMock.B b = (GraphMock.B) nodes.get(1).createModel(ConfigModelContext.create(null, root, "second"));
GraphMock.B b2 = (GraphMock.B) nodes.get(1).createModel(ConfigModelContext.create(null, root, "second2"));
GraphMock.C c = (GraphMock.C) nodes.get(2).createModel(ConfigModelContext.create(null, root, "third"));
assertNotNull(a);
assertNotNull(b);
assertNotNull(b2);
assertNotNull(c);
assertThat(a.getId(), is("first"));
assertThat(b.getId(), is("second"));
assertThat(b2.getId(), is("second2"));
assertThat(c.getId(), is("third"));
assertThat(b.a, is(a));
assertNotNull(c.b);
assertThat(c.b.size(), is(2));
assertTrue(c.b.contains(b));
assertTrue(c.b.contains(b2));
}
@Rule
public ExpectedException expectedEx = ExpectedException.none();
@Test
public void require_that_context_must_be_first_ctor_param() {
expectedEx.expect(IllegalArgumentException.class);
expectedEx.expectMessage("Constructor for " + GraphMock.Bad.class.getName() + " must have as its first argument a " + ConfigModelContext.class.getName());
ModelNode node = new ModelNode(new GraphMock.Bad.Builder());
node.createModel(ConfigModelContext.create(null, new MockRoot(), "foo"));
}
@Test
public void require_that_ctor_arguments_must_be_models_or_collections_of_models() {
expectedEx.expect(IllegalArgumentException.class);
expectedEx.expectMessage("Unable to find constructor argument class java.lang.String for com.yahoo.config.model.graph.GraphMock$Bad2");
ModelNode node = new ModelNode(new GraphMock.Bad2.Builder());
node.createModel(ConfigModelContext.create(null, new MockRoot(), "foo"));
}
@Test
public void require_that_collections_can_be_empty() {
ModelGraph graph = new ModelGraphBuilder().addBuilder(new GraphMock.BC()).addBuilder(new GraphMock.BA()).build();
List<ModelNode> nodes = graph.topologicalSort();
MockRoot root = new MockRoot();
GraphMock.A a = (GraphMock.A) nodes.get(0).createModel(ConfigModelContext.create(null, root, "first"));
GraphMock.C c = (GraphMock.C) nodes.get(1).createModel(ConfigModelContext.create(null, root, "second"));
assertThat(c.a, is(a));
assertTrue(c.b.isEmpty());
}
}
|
