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package tests;

import io.github.cdimascio.dotenv.DotenvException;

import io.github.cdimascio.dotenv.Dotenv;

import io.github.cdimascio.dotenv.DotenvEntry;

import org.junit.Before;

import org.junit.Test;

import java.util.HashMap;

import java.util.Iterator;

import java.util.Map;

import java.util.Set;

import static org.junit.Assert.assertEquals;

import static org.junit.Assert.assertNotNull;

import static org.junit.Assert.assertTrue;

public class DotenvTests {

private Map<String, String> envVars;

@Before

public void setUp() {

envVars = new HashMap<>();

envVars.put("MY_TEST_EV1", "my test ev 1");

envVars.put("MY_TEST_EV2", "my test ev 2");

envVars.put("WITHOUT_VALUE", "");

}

@Test(expected = DotenvException.class)

public void throwIfMalconfigured() {

Dotenv.configure().load();

}

@Test(expected = DotenvException.class)

public void load() {

Dotenv dotenv = Dotenv.load();

for (String envName : envVars.keySet()) {

assertEquals(envVars.get(envName), dotenv.get(envName));

}

}

@Test

public void iteratorOverDotenv() {

Dotenv dotenv = Dotenv.configure()

.ignoreIfMalformed()

.load();

dotenv

.entries()

.forEach(e -> assertEquals(dotenv.get(e.getKey()), e.getValue()));

for (DotenvEntry e : dotenv.entries()) {

assertEquals(dotenv.get(e.getKey()), e.getValue());

}

}

@Test

public void iteratorOverDotenvWithFilter() {

Dotenv dotenv = Dotenv.configure()

.ignoreIfMalformed()

.load();

Set<DotenvEntry> entriesInFile = dotenv.entries(Dotenv.Filter.DECLARED_IN_ENV_FILE);

Set<DotenvEntry> entriesAll = dotenv.entries();

assertTrue(entriesInFile.size() < entriesAll.size());

for (Map.Entry<String, String> e: envVars.entrySet()) {

assertEquals(dotenv.get(e.getKey()), e.getValue());

}

}

@Test(expected = UnsupportedOperationException.class)

public void failToRemoveFromDotenv() {

Dotenv dotenv = Dotenv.configure()

.ignoreIfMalformed()

.load();

Iterator<DotenvEntry> iter = dotenv.entries().iterator();

while (iter.hasNext()) {

iter.next();

iter.remove();

}

}

@Test(expected = UnsupportedOperationException.class)

public void failToAddToDotenv() {

Dotenv dotenv = Dotenv.configure()

.ignoreIfMalformed()

.load();

dotenv.entries().add(new DotenvEntry("new", "value"));

}

@Test

public void configureWithIgnoreMalformed() {

Dotenv dotenv = Dotenv.configure()

.ignoreIfMalformed()

.load();

for (String envName : envVars.keySet()) {

assertEquals(envVars.get(envName), dotenv.get(envName));

}

}

@Test

public void configureWithIgnoreMissingAndMalformed() {

Dotenv dotenv = Dotenv.configure()

.directory("/missing/dir")

.ignoreIfMalformed()

.ignoreIfMissing()

.load();

assertNotNull(dotenv.get("PATH"));

}

}