ValidatorTest.java

package de.zalando.toga.validator;

import com.github.fge.jsonschema.core.report.ProcessingReport;
import org.junit.Test;

import java.io.File;

import static org.hamcrest.core.Is.is;
import static org.junit.Assert.assertThat;

public class ValidatorTest {

    @Test
    public void emptyObjectTest() {
        File schema = new File("src/test/resources/validator/empty_object_schema.json");
        validateSchema(schema, "{}");
    }

    @Test
    public void simpleFailure() {
        File schema = new File("src/test/resources/validator/single_string_schema.json");
        validateSchema(schema, "{}", false);
    }

    @Test
    public void simpleStringTest() {
        File schema = new File("src/test/resources/validator/single_string_schema.json");
        validateSchema(schema, "{\"someString\":\"\"}");
        validateSchema(schema, "{\"someString\":\"short\"}");
        validateSchema(schema, "{\"someString\":\"a little longer with some spaces\"}");
    }

    @Test(expected = RuntimeException.class)
    public void loadNonExistingSchemaShouldThrowException() {
        new SchemaValidator().loadSchema(new File("this/does/not/exist"));
    }

    @Test(expected = IllegalStateException.class)
    public void validateWithoutSchemaShouldThrowException() {
        new SchemaValidator().validate("");
    }

    @Test(expected = RuntimeException.class)
    public void validateNullInputShouldThrowException() {
        File schema = new File("src/test/resources/validator/single_string_schema.json");
        validateSchema(schema, null);
    }

    @Test(expected = RuntimeException.class)
    public void validateInvalidInputShouldThrowException() {
        File schema = new File("src/test/resources/validator/single_string_schema.json");
        validateSchema(schema, "{");
    }

    private void validateSchema(File schema, String input, boolean expectedResult) {
        SchemaValidator validator = new SchemaValidator();
        validator.loadSchema(schema);

        ProcessingReport report = validator.validate(input);

        assertThat(report.isSuccess(), is(expectedResult));

    }

    private void validateSchema(File schema, String input) {
        validateSchema(schema, input, true);
    }
}