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Add testing utilites for JSON serialization

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This commit is contained in:
Antonin Delpeuch 2018-08-08 11:49:30 +01:00
parent 2b57350adf
commit d9bff34411
1 changed files with 53 additions and 0 deletions
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53
main/tests/server/src/com/google/refine/tests/util/TestUtils.java
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@ -1,11 +1,31 @@
package com.google.refine.tests.util; package com.google.refine.tests.util;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
import java.io.File; import java.io.File;
import java.io.IOException; import java.io.IOException;
import java.io.StringWriter;
import java.io.Writer;
import java.util.Properties;
import org.json.JSONException;
import org.json.JSONObject;
import org.json.JSONWriter;
import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.refine.Jsonizable;
import com.google.refine.util.ParsingUtilities;
public class TestUtils { public class TestUtils {
static ObjectMapper mapper = new ObjectMapper();
/** /**
* Create a temporary directory. NOTE: This is a quick and dirty * Create a temporary directory. NOTE: This is a quick and dirty
* implementation suitable for tests, not production code. * implementation suitable for tests, not production code.
@ -22,4 +42,37 @@ public class TestUtils {
return dir; return dir;
} }
/**
* Compare two JSON strings for equality.
*/
public static void equalAsJson(String expected, String actual) {
try {
JsonNode jsonA = mapper.readValue(expected, JsonNode.class);
JsonNode jsonB = mapper.readValue(actual, JsonNode.class);
assertEquals(jsonA, jsonB);
} catch(JsonMappingException e) {
fail(e.getMessage());
} catch (JsonParseException e) {
fail(e.getMessage());
} catch (IOException e) {
fail(e.getMessage());
}
}
/**
* Checks that a serializable object is serialized to the target JSON string.
*/
public static void isSerializedTo(Jsonizable o, String targetJson, Properties options) {
Writer w = new StringWriter();
JSONWriter jsonWriter = new JSONWriter(w);
o.write(jsonWriter, options);
equalAsJson(targetJson, w.toString());
}
/**
* Checks that a serializable object is serialized to the target JSON string.
*/
public static void isSerializedTo(Jsonizable o, String targetJson) {
isSerializedTo(o, targetJson, new Properties());
}
} }