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- import org.junit.Ignore;
- import org.junit.Test;
- import org.slf4j.Logger;
- import org.slf4j.LoggerFactory;
- public class StringPerformerTest {
- private static final Logger log = LoggerFactory.getLogger(StringPerformerTest.class);
- private static final String S1 = "table";
- private static final String S2 = "variable";
- private static final String S3 = "Monkeys MIGHT 'Climb out of my ass'";
- @Test
- public void testBasic() {
- for(int i=0; i<3; i++) {
- final long start = System.nanoTime();
- for(int j=0; j<1_000_000; j++) {
- basic(S1, S2, S3);
- }
- final long run = System.nanoTime() - start;
- log.info("Time was {}ns, {}/s", run/1E6, 1E6/(run/1e9));
- }
- }
- @Test
- public void testStringBuilder() {
- for(int i=0; i<3; i++) {
- final long start = System.nanoTime();
- for(int j=0; j<1_000_000; j++) {
- stringBuilder(S1, S2, S3);
- }
- final long run = System.nanoTime() - start;
- log.info("Time was {}ns, {}/s", run/1E6, 1E6/(run/1e9));
- }
- }
- @Test
- public void testStringBuilderSize() {
- for(int i=0; i<3; i++) {
- final long start = System.nanoTime();
- for(int j=0; j<1_000_000; j++) {
- stringBuilderSize(S1, S2, S3);
- }
- final long run = System.nanoTime() - start;
- log.info("Time was {}ns, {}/s", run/1E6, 1E6/(run/1e9));
- }
- }
- @Ignore
- public static String basic(String s1, String s2, String s3) {
- return "SELECT " + s1 + " FROM " + s2 + " WHERE " + s3;
- }
- @Ignore
- public static String stringBuilder(String s1, String s2, String s3) {
- return new StringBuilder().append("SELECT ").append(s1)
- .append(" FROM ").append(s2).append(" WHERE ")
- .append(s3).toString();
- }
- @Ignore
- public static String stringBuilderSize(String s1, String s2, String s3) {
- int len = 20 + s1.length() + s2.length() + s3.length();
- return new StringBuilder(len).append("SELECT ").append(s1)
- .append(" FROM ").append(s2).append(" WHERE ")
- .append(s3).toString();
- }
- }
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