MLE-14482 Better error message when username/password is empty

gradle.properties

@@ -1,5 +1,5 @@
 group=com.marklogic
-version=6.6-SNAPSHOT
+version=6.7-SNAPSHOT
 describedName=MarkLogic Java Client API
 publishUrl=file:../marklogic-java/releases
 

marklogic-client-api/src/main/java/com/marklogic/client/impl/DatabaseClientPropertySource.java

@@ -183,9 +183,13 @@ private DatabaseClientFactory.SecurityContext newSecurityContext(String type, SS
 	}
 
 	private String getRequiredStringValue(String propertyName) {
+		return getRequiredStringValue(propertyName, String.format("%s must be of type String", propertyName));
+	}
+
+	private String getRequiredStringValue(String propertyName, String errorMessage) {
 		Object value = propertySource.apply(PREFIX + propertyName);
 		if (value == null || !(value instanceof String)) {
-			throw new IllegalArgumentException(propertyName + " must be of type String");
+			throw new IllegalArgumentException(errorMessage);
 		}
 		return (String) value;
 	}
@@ -204,13 +208,15 @@ private String getNullableStringValue(String propertyName, String defaultValue)
 
 	private DatabaseClientFactory.SecurityContext newBasicAuthContext() {
 		return new DatabaseClientFactory.BasicAuthContext(
-			getRequiredStringValue("username"), getRequiredStringValue("password")
+			getRequiredStringValue("username", "Must specify a username when using basic authentication."),
+			getRequiredStringValue("password", "Must specify a password when using basic authentication.")
 		);
 	}
 
 	private DatabaseClientFactory.SecurityContext newDigestAuthContext() {
 		return new DatabaseClientFactory.DigestAuthContext(
-			getRequiredStringValue("username"), getRequiredStringValue("password")
+			getRequiredStringValue("username", "Must specify a username when using digest authentication."),
+			getRequiredStringValue("password", "Must specify a password when using digest authentication.")
 		);
 	}
 

marklogic-client-api/src/test/java/com/marklogic/client/test/DatabaseClientBuilderTest.java

@@ -91,6 +91,20 @@ void digest() {
 		assertEquals("my-password", context.getPassword());
 	}
 
+	@Test
+	void digestNoUsername() {
+		IllegalArgumentException ex = assertThrows(IllegalArgumentException.class, () ->
+			Common.newClientBuilder().withDigestAuth(null, "my-password").buildBean());
+		assertEquals("Must specify a username when using digest authentication.", ex.getMessage());
+	}
+
+	@Test
+	void digestNoPassword() {
+		IllegalArgumentException ex = assertThrows(IllegalArgumentException.class, () ->
+			Common.newClientBuilder().withDigestAuth("my-user", null).buildBean());
+		assertEquals("Must specify a password when using digest authentication.", ex.getMessage());
+	}
+
 	@Test
 	void basic() {
 		bean = Common.newClientBuilder()
@@ -102,6 +116,20 @@ void basic() {
 		assertEquals("my-password", context.getPassword());
 	}
 
+	@Test
+	void basicNoUsername() {
+		IllegalArgumentException ex = assertThrows(IllegalArgumentException.class, () ->
+			Common.newClientBuilder().withBasicAuth(null, "my-password").buildBean());
+		assertEquals("Must specify a username when using basic authentication.", ex.getMessage());
+	}
+
+	@Test
+	void basicNoPassword() {
+		IllegalArgumentException ex = assertThrows(IllegalArgumentException.class, () ->
+			Common.newClientBuilder().withBasicAuth("my-user", null).buildBean());
+		assertEquals("Must specify a password when using basic authentication.", ex.getMessage());
+	}
+
 	@Test
 	void cloudWithBasePath() {
 		bean = Common.newClientBuilder()