test: prepare for a more exhaustive test-suite, using JSON

build.gradle

@@ -19,7 +19,8 @@ repositories {
 dependencies {
     // Use the JUnit test framework with assertions and benchmarks
     testImplementation 'org.junit.jupiter:junit-jupiter:5.6.3'
-    testImplementation 'org.openjdk.jmh:jmh-generator-annprocess:1.21'
+    testImplementation 'net.joshka:junit-json-params:1.1.0'
+    //testImplementation 'org.openjdk.jmh:jmh-generator-annprocess:1.21'
     
     // This dependency is exported to consumers, that is to say found on their compile classpath.
     //api 'org.apache.commons:commons-math3:3.6.1'

pom.xml

@@ -6,7 +6,7 @@
 
   <groupId>fr.mieuxvoter.mj</groupId>
   <artifactId>majority-judgment</artifactId>
-  <version>0.1.0</version>
+  <version>0.1.1</version>
 
   <name>majority-judgment</name>
   <url>https://mieuxvoter.fr</url>
@@ -24,7 +24,18 @@
       <version>5.6.3</version>
       <scope>test</scope>
     </dependency>
-
+    <dependency>
+      <groupId>net.joshka</groupId>
+      <artifactId>junit-json-params</artifactId>
+      <version>1.1.0</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.glassfish</groupId>
+      <artifactId>javax.json</artifactId>
+      <version>1.1.4</version>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 
   <build>

src/test/java/fr/mieuxvoter/mj/MajorityJudgmentDeliberatorTest.java

@@ -2,12 +2,26 @@ package fr.mieuxvoter.mj;
 
 import static org.junit.jupiter.api.Assertions.*;
 
+import java.util.stream.Stream;
+
+import javax.json.JsonArray;
+import javax.json.JsonObject;
+import javax.json.JsonValue;
+
+import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+
+import net.joshka.junit.json.params.JsonFileSource;
+//import net.joshka.junit.json.params.JsonObject;
+
 
 class MajorityJudgmentDeliberatorTest {
 
 	@Test
-	void testDemoUsage() {
+	public void testDemoUsage() {
 		DeliberatorInterface mj = new MajorityJudgmentDeliberator();
 		TallyInterface tally = new Tally(new ProposalTallyInterface[] {
 				new ProposalTally(new Integer[]{4, 5, 2, 1, 3, 1, 2}),
@@ -15,9 +29,6 @@ class MajorityJudgmentDeliberatorTest {
 		}, 18L);
 		ResultInterface result = mj.deliberate(tally);
 		
-//		System.out.println("Score 0: "+result.getProposalResults()[0].getScore());
-//		System.out.println("Score 1: "+result.getProposalResults()[1].getScore());
-		
 		assertNotNull(result);
 		assertEquals(2, result.getProposalResults().length);
 		assertEquals(2, result.getProposalResults()[0].getRank());
@@ -25,7 +36,7 @@ class MajorityJudgmentDeliberatorTest {
 	}
 	 
 	@Test
-	void testUsageWithBigNumbers() {
+	public void testUsageWithBigNumbers() {
 		DeliberatorInterface mj = new MajorityJudgmentDeliberator();
 		TallyInterface tally = new Tally(new ProposalTallyInterface[] {
 				new ProposalTally(new Long[]{11312415004L, 21153652410L, 24101523299L, 18758623562L}),
@@ -44,4 +55,53 @@ class MajorityJudgmentDeliberatorTest {
 		assertEquals(1, result.getProposalResults()[1].getRank());
 	}
 	
+    @DisplayName("Test majority judgment deliberation")
+    @ParameterizedTest(name="#{index} {0}")
+    @JsonFileSource(resources = "/assertions.json")
+    public void testFromJson(JsonObject datum) {
+    	JsonArray jsonTallies = datum.getJsonArray("tallies");
+    	int amountOfProposals = jsonTallies.size();
+    	ProposalTallyInterface[] tallies = new ProposalTallyInterface[amountOfProposals];
+    	for (int i = 0; i < amountOfProposals; i++) {
+    		JsonArray jsonTally = jsonTallies.getJsonArray(i);
+    		int amountOfGrades = jsonTally.size();
+    		Long[] tally = new Long[amountOfGrades];
+    		for (int g = 0; g < amountOfGrades; g++) {
+    			JsonValue amountForGrade = jsonTally.get(g);
+    			tally[g] = Long.valueOf(amountForGrade.toString());
+    		}
+    		tallies[i] = new ProposalTally(tally);
+    	}
+		DeliberatorInterface mj = new MajorityJudgmentDeliberator();
+		TallyInterface tally = new Tally(tallies, 3L);
+		ResultInterface result = mj.deliberate(tally);
+		
+		assertNotNull(result);
+		JsonArray jsonRanks = datum.getJsonArray("ranks");
+		for (int i = 0; i < amountOfProposals; i++) {
+			assertEquals(
+					jsonRanks.getInt(i),
+					result.getProposalResults()[i].getRank(),
+					"Rank of tally #"+i
+			);
+		}
+    }
+	
+//	@Test
+//	public void runBenchmarks() throws Exception {
+//	    Options options = new OptionsBuilder()
+//	            .include(this.getClass().getName() + ".*")
+//	            .mode(Mode.AverageTime)
+//	            .warmupTime(TimeValue.seconds(1))
+//	            .warmupIterations(6)
+//	            .threads(1)
+//	            .measurementIterations(6)
+//	            .forks(1)
+//	            .shouldFailOnError(true)
+//	            .shouldDoGC(true)
+//	            .build();
+//
+//	    new Runner(options).run();
+//	}
+
 }

src/test/resources/assertions.json

@@ -0,0 +1,21 @@
+[
+
+    {
+        "title": "Few judgments",
+        "tallies": [
+        	[1, 1, 1],
+        	[1, 0, 2],
+        	[3, 0, 0],
+        	[2, 0, 1],
+        	[0, 3, 0]
+        ],
+        "ranks": [
+        	3,
+        	1,
+        	5,
+        	4,
+        	2
+        ]
+    }
+
+]