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Remove guava dependencies as gabe already has a lower version of it
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8 changes: 8 additions & 0 deletions
8
src/main/kotlin/com/xfastgames/witness/utils/guava/MutableValueGraph.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| package com.xfastgames.witness.utils.guava | ||
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| import com.google.common.graph.EndpointPair | ||
| import com.google.common.graph.MutableValueGraph | ||
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| @Suppress("UnstableApiUsage") | ||
| fun <N : Any, E : Any> MutableValueGraph<N, E>.putEdgeValue(pair: EndpointPair<N>, edge: E) = | ||
| this.putEdgeValue(pair.nodeU(), pair.nodeV(), edge) |
19 changes: 19 additions & 0 deletions
19
src/main/kotlin/com/xfastgames/witness/utils/guava/Traverser.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,19 @@ | ||
| package com.xfastgames.witness.utils.guava | ||
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| import com.google.common.graph.Graph | ||
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| @Suppress("UnstableApiUsage") | ||
| class Traverser<N : Any>(private val graph: Graph<N>) { | ||
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| fun depthFirst(start: N, traversedNodes: MutableList<N> = mutableListOf(start)): List<N> { | ||
| val adjacentNodes: MutableSet<N> = graph.adjacentNodes(start) | ||
| val nextNode: N? = adjacentNodes.firstOrNull { node -> node !in traversedNodes } | ||
| if (nextNode != null) traversedNodes.add(nextNode) | ||
| else return traversedNodes | ||
| return depthFirst(nextNode, traversedNodes) | ||
| } | ||
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| companion object { | ||
| fun <N : Any> forGraph(graph: Graph<N>): Traverser<N> = Traverser(graph) | ||
| } | ||
| } |
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69 changes: 69 additions & 0 deletions
69
src/test/kotlin/com/xfastgames/witness/utils/GuavaTests.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| package com.xfastgames.witness.utils | ||
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| import com.google.common.graph.MutableValueGraph | ||
| import com.google.common.graph.ValueGraphBuilder | ||
| import com.google.common.truth.Truth | ||
| import com.xfastgames.witness.utils.guava.Traverser | ||
| import com.xfastgames.witness.utils.guava.add | ||
| import com.xfastgames.witness.utils.guava.adjacencyMatrix | ||
| import org.junit.jupiter.api.DisplayName | ||
| import org.junit.jupiter.api.Nested | ||
| import org.junit.jupiter.api.Test | ||
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| enum class Person { Bob, Alice, Rob, Maria, Mark } | ||
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| @Suppress("UnstableApiUsage") | ||
| class ValueGraphTests { | ||
| private val testNodes: List<Person> = Person.values().toList() | ||
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| private val testAdjacencyMatrix: List<List<Double?>> = listOf( | ||
| // Bob, Alice, Rob, Maria, Mark | ||
| listOf(null, 1.0, 0.75, null, null), // Bob | ||
| listOf(1.0, null, null, 0.75, 0.5), // Alice | ||
| listOf(0.75, null, null, 1.0, 0.5), // Rob | ||
| listOf(null, 0.75, 1.0, null, null), // Maria | ||
| listOf(null, 0.5, 0.5, null, null) // Mark | ||
| ) | ||
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| /** | ||
| * Based on  | ||
| */ | ||
| private val testPersonGraph: MutableValueGraph<Person, Double> = ValueGraphBuilder.undirected() | ||
| .build<Person, Double>().apply { | ||
| putEdgeValue(Person.Bob, Person.Alice, 1.0) | ||
| putEdgeValue(Person.Bob, Person.Rob, 0.75) | ||
| putEdgeValue(Person.Alice, Person.Maria, 0.75) | ||
| putEdgeValue(Person.Maria, Person.Rob, 1.0) | ||
| putEdgeValue(Person.Alice, Person.Mark, .5) | ||
| putEdgeValue(Person.Mark, Person.Rob, .5) | ||
| } | ||
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| @Nested | ||
| @DisplayName("Test grid generation") | ||
| inner class ValueGraphTests { | ||
| @Test | ||
| fun `Test if the network adjacency matrix is setup correct`() { | ||
| val actual: List<List<Double?>> = testPersonGraph.adjacencyMatrix | ||
| Truth.assertThat(actual).isEqualTo(testAdjacencyMatrix) | ||
| } | ||
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| @Test | ||
| fun `Test if the network can be build from a set of nodes and adjacency matrix`() { | ||
| val actual: MutableValueGraph<Person, Double> = ValueGraphBuilder.undirected().build() | ||
| actual.add(testNodes, testAdjacencyMatrix) | ||
| Truth.assertThat(actual).isEqualTo(testPersonGraph) | ||
| } | ||
| } | ||
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| @Nested | ||
| @DisplayName("Test traverser") | ||
| inner class TraverserTests { | ||
| private val testTraverser: Traverser<Person> = Traverser.forGraph(testPersonGraph.asGraph()) | ||
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| @Test | ||
| fun `Test depth first`() { | ||
| val actual: List<Person> = testTraverser.depthFirst(Person.Alice) | ||
| println(actual) | ||
| } | ||
| } | ||
| } |
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