#36 Test config creation from env vars

Signed-off-by: Sven Strittmatter <sven.strittmatter@iteratec.com>

Author: Weltraumschaf

build.gradle

@@ -24,6 +24,7 @@ dependencies {
     testImplementation 'org.springframework:spring-test:5.3.23'
     testImplementation 'org.hamcrest:java-hamcrest:2.0.0.0'
     testImplementation 'org.mockito:mockito-core:3.+'
+    testImplementation 'uk.org.webcompere:system-stubs-jupiter:2.0.1'
 
     implementation group: 'org.springframework', name: 'spring-web', version: '5.3.9'
     implementation group: 'org.apache.httpcomponents', name: 'httpclient', version: '4.5.13'

src/test/java/io/securecodebox/persistence/defectdojo/config/ConfigTest.java

@@ -1,8 +1,12 @@
 package io.securecodebox.persistence.defectdojo.config;
 
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.ValueSource;
+import uk.org.webcompere.systemstubs.environment.EnvironmentVariables;
+import uk.org.webcompere.systemstubs.jupiter.SystemStub;
+import uk.org.webcompere.systemstubs.jupiter.SystemStubsExtension;
 
 import static org.junit.jupiter.api.Assertions.*;
 import static org.hamcrest.MatcherAssert.assertThat;
@@ -11,8 +15,12 @@
 /**
  * Tests for {@link Config}
  */
+@ExtendWith(SystemStubsExtension.class)
 class ConfigTest {
 
+    @SystemStub
+    private EnvironmentVariables environmentVariables;
+
     @Test
     void constructor_urlMustNotBeNull() {
         final var thrown = assertThrows(NullPointerException.class, () ->{
@@ -50,4 +58,22 @@ void constructor_maxPageCountForGetsMustNotBeLessThanOne(final int number) {
         assertThat(thrown.getMessage(), startsWith("maxPageCountForGets "));
     }
 
+    @Test
+    void fromEnv() {
+        environmentVariables.set("DEFECTDOJO_URL", "url")
+            .set("DEFECTDOJO_USERNAME", "username")
+            .set("DEFECTDOJO_APIKEY", "apikey")
+            .set("DEFECTDOJO_USER_ID", "42")
+            .set("DEFECTDOJO_MAX_PAGE_COUNT_FOR_GETS", "23");
+
+        final var sut = Config.fromEnv();
+
+        assertAll(
+            () -> assertThat(sut.getUrl(), is("url")),
+            () -> assertThat(sut.getUsername(), is("username")),
+            () -> assertThat(sut.getApiKey(), is("apikey")),
+            () -> assertThat(sut.getUserId(), is(42L)),
+            () -> assertThat(sut.getMaxPageCountForGets(), is(23))
+        );
+    }
 }