weibozhao commented on a change in pull request #24:
URL: https://github.com/apache/flink-ml/pull/24#discussion_r755676992
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File path:
flink-ml-lib/src/test/java/org/apache/flink/ml/classification/knn/KnnTest.java
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@@ -0,0 +1,172 @@
+package org.apache.flink.ml.classification.knn;
+
+import org.apache.flink.api.common.restartstrategy.RestartStrategies;
+import org.apache.flink.api.common.typeinfo.TypeInformation;
+import org.apache.flink.api.common.typeinfo.Types;
+import org.apache.flink.api.java.typeutils.RowTypeInfo;
+import org.apache.flink.configuration.Configuration;
+import org.apache.flink.ml.api.core.Pipeline;
+import org.apache.flink.ml.api.core.Stage;
+import org.apache.flink.streaming.api.datastream.DataStream;
+import
org.apache.flink.streaming.api.environment.ExecutionCheckpointingOptions;
+import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
+import org.apache.flink.streaming.api.functions.sink.SinkFunction;
+import org.apache.flink.table.api.Table;
+import org.apache.flink.table.api.bridge.java.StreamTableEnvironment;
+import org.apache.flink.types.Row;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import java.nio.file.Files;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+/** knn algorithm test. */
+public class KnnTest {
+ private StreamExecutionEnvironment env;
+ private StreamTableEnvironment tEnv;
+ private Table trainData;
+
+ List<Row> trainArray =
+ new ArrayList<>(
+ Arrays.asList(
+ Row.of("f", "2.0 3.0"),
+ Row.of("f", "2.1 3.1"),
+ Row.of("m", "200.1 300.1"),
+ Row.of("m", "200.2 300.2"),
+ Row.of("m", "200.3 300.3"),
+ Row.of("m", "200.4 300.4"),
+ Row.of("m", "200.4 300.4"),
+ Row.of("m", "200.6 300.6"),
+ Row.of("f", "2.1 3.1"),
+ Row.of("f", "2.1 3.1"),
+ Row.of("f", "2.1 3.1"),
+ Row.of("f", "2.1 3.1"),
+ Row.of("f", "2.3 3.2"),
+ Row.of("f", "2.3 3.2"),
+ Row.of("c", "2.8 3.2"),
+ Row.of("d", "300. 3.2"),
+ Row.of("f", "2.2 3.2"),
+ Row.of("e", "2.4 3.2"),
+ Row.of("e", "2.5 3.2"),
+ Row.of("e", "2.5 3.2"),
+ Row.of("f", "2.1 3.1")));
+
+ List<Row> testArray =
+ new ArrayList<>(Arrays.asList(Row.of("e", "4.0 4.1"), Row.of("m",
"300 42")));
+
+ private Table testData;
+
Review comment:
OK, I will do it later.
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