Updated DefaultHost from "localhost" to "127.0.0.1" in client_test.go. This change ensures consistent and direct communication with the local machine, avoiding potential issues with DNS resolution of "localhost".
Updated test cases to use a predefined context instead of creating new backgrounds. Additionally, improved error handling by checking for client creation failures and adding appropriate fatal log messages. These changes enhance test reliability and debugging clarity.
Reformat test cases in `client_test.go` for better readability and consistency by converting single-line struct definitions into multi-line blocks. This change improves code maintainability and aligns the formatting across similar tests.
Removed obsolete and redundant client test cases that were no longer relevant. This cleanup improves code maintainability and readability by eliminating excessive, unused test methods.
Refactor existing email sending tests by organizing multiple edge cases and adding robust test coverage. This includes adding checks for invalid sender/recipient addresses, handling DSN support, and ensuring proper client server interactions during failures like DATA init, DATA close, and MAIL FROM.
Decreased sleep time from 300ms to 30ms across multiple tests to improve test execution speed. Added a new test `TestClient_sendSingleMsg` to connect and send an email message, ensuring the robustness of the sending functionality.
Simplified repeated message initialization by introducing a helper function `testMessage(t)`. Enhanced existing tests by adding robust concurrency tests and refined the structure of email sending scenarios.
Replaced hardcoded SMTP credentials with generic placeholders for improved security. Added new test cases to handle unsupported authentication methods and connections without TLS.
Implemented new test cases for different SMTP authentication methods including PLAIN, LOGIN, XOAUTH2, and various SCRAM mechanisms. These tests ensure that the client can correctly handle both successful and failing authentication scenarios, as well as unsupported authentication types.
Renamed TestClient_DialAndSend to TestClient_DialAndSendWithContext and reorganized message setup. Added multiple test cases to cover different failure points in the DialAndSendWithContext method.
Introduce a new test `TestClient_DialAndSend` to validate the process of dialing and sending an email using the SMTP client. This includes setting up a mock SMTP server and verifying the process from message creation to sending.
Introduce tests for the client reset functionality, including scenarios to test successful reset, reset on a disconnected client, and reset with server failure. This ensures robustness and reliability of the client reset feature under various conditions.
Pass `*testing.T` to `simpleSMTPServer` for enhanced test logging and helper methods. This allows better integration with the testing framework, converting standard log outputs to `t.Logf` for improved test diagnostics and error reporting.
Deleted two test functions for DialWithContext that tested invalid HELO and authentication scenarios. These tests were deemed redundant as the error handling for these cases is covered elsewhere.
Extended test cases to include scenarios for STARTTLS and SSL connections. This includes handling TLS configurations, testing certificate handling, and tests for various authentication methods under TLS.
Introduce `WithDebugLog()` in client creation for enhanced logging during tests. Correct handling of certain SMTP command errors by replacing `return` with `break` in switch cases for proper loop continuation.
Introduce a new test case to ensure the SMTP client fails gracefully when an invalid HELO command is used. This includes validating error handling and maintaining the client connection integrity. Also, optimize EHLO/HELO command handling by enhancing syntax checking and error response generation.
Add test cases to validate client behavior on connecting with an invalid host and encountering a HELO failure. This helps ensure the client handles these error scenarios correctly, maintaining robustness and reliability.
Replaced &bytes.Buffer{} with bytes.NewBuffer(nil) for buffer initialization in various client tests. This change ensures more idiomatic and consistent creation of byte buffers throughout the test cases.
Consolidate server configuration properties into a new serverProps struct for better code clarity and future extensibility. This change involves updating simpleSMTPServer and test cases to use the new struct, allowing more control over server behavior during tests.
Reintroduces and enhances several client tests including `SetLogAuthData`, `Close`, `DialWithContext`, and others. Deprecated and non-functional tests are removed, and a new log parsing method is added for enhanced logging validation.
Replaced the single test case for setting custom SMTP authentication with a table-driven approach. This refactor improves test coverage by including multiple authentication methods such as CRAM-MD5, LOGIN, PLAIN, SCRAM, and XOAUTH2.
Removed outdated tests for TLSConfig, Username, Password, and SMTPAuth that were commented out. Added a new test for the SetSMTPAuthCustom method, specifically for PLAIN authentication, ensuring proper behavior and type checks.
Introduce a new test to validate the functionality of the Client.SetSMTPAuth method. This test covers various SMTP authentication types and ensures that the method correctly sets the expected authentication type while also verifying the override behavior for different custom and default authentications.
Introduced unit tests for Client's SetTLSConfig, SetUsername, and SetPassword methods. The tests cover various scenarios, including setting valid configurations, handling nil inputs, and overriding previous settings. This improves our test coverage and ensures the reliability of these methods.
Implemented detailed test cases for various TLS policies and settings, port configurations, and SSL options. Also added tests for debugging functionalities of the Client, enabling robust validation of different scenarios.
Introduced `context` package for new tests. Added checks for `WithDialContextFunc`, `WithLogAuthData`, and TLS policy assertions. Improved test failure handling and removed obsolete tests.
Expanded the client test cases to include DSN mail return types and multiple DSN recipient notify types. Also added tests for setting dial context functions using both net.Dialer and tls.Dialer, including error handling for invalid options.
Reorganized and refactored tests for `NewClient` by adding individual test cases for different client creation scenarios, including various options and validation. Improved clarity and coverage by isolating cases, enhancing error messages, and removing redundancy.
Updated the log level from error to debug for the client.Close() call failure in client_test.go. This change helps reduce noise in test output when the server connection fails.
Implemented an option to allow SMTP LOGIN authentication over unencrypted channels by introducing a new `SMTPAuthLoginNoEnc` type. Updated relevant functions and tests to handle the new parameter for unsecured authentication.
Implemented a new SMTPAuthPlainNoEnc option to allow PLAIN authentication over unencrypted connections. Refactored the PlainAuth function to accept an additional allowUnencryptedAuth parameter. Updated relevant tests to cover the new authentication method.
Introduced TestClient_SetLogAuthData to verify the proper behavior of the SetLogAuthData method in both client and SMTP tests. This ensures that logAuthData is enabled or disabled as expected, increasing code reliability.
Renamed environment variables from TEST_USER and TEST_PASS to TEST_SMTPAUTH_USER and TEST_SMTPAUTH_PASS for clarity and consistency in setting SMTP authentication credentials. This change ensures that the correct credentials are applied during tests.
This commit fixes a regression introduced in v0.5.0. We now set the default SMTPAuthType to NOAUTH in NewClient. Enhanced documentation and added test cases for different SMTP authentication scenarios.
Reset connections to nil after Close, add RLock in HasConnection, and refine Close logic to handle already closed connections gracefully. Enhanced DialWithContext documentation and added tests for double-close scenarios to ensure robustness.
Previously, only the presence of the SMTP auth method was checked, but not its type. This additional validation ensures that the SMTP auth type is correctly set to custom, thereby improving test accuracy.
Renamed the variable from `dsnrntype` to `dsnRcptNotifyType` to improve code readability and ensure clarity regarding its purpose. Also updated corresponding comments and test cases to reflect this change.
Refactor variable names for consistency. The `dsnmrtype` variable has been renamed to `dsnReturnType` across the client and test files to improve code readability and maintain uniformity.
Renamed `dsn` field to `requestDSN` in Client structure for clarity and consistency. Adjusted associated methods and tests to reflect this change, improving code readability and maintainability.
Changed variable assignment in the test to fix error handling. This ensures the error is properly caught and reported during the client connection process.
Refactored SMTP LOGIN auth to improve compatibility with various server responses, consolidating error handling and response steps. Added extensive tests to verify successful and failed authentication across different server configurations.
Introduce a new test case `TestClient_AuthSCRAMSHAX_unsupported` to validate handling of unsupported SCRAM-SHA authentication methods. This ensures the client returns the correct errors when setting unsupported auth types.
Implemented tests for various SCRAM-SHA authentication methods including SCRAM-SHA-1, SCRAM-SHA-1-PLUS, SCRAM-SHA-256, and SCRAM-SHA-256-PLUS with invalid credentials. This ensures that the client correctly handles and reports authentication failures.
Introduce `TestClient_AuthSCRAMSHAX` to verify SCRAM-SHA-1 and SCRAM-SHA-256 authentication. These tests validate the creation, connection, and closing of clients with the respective authentication methods using environment-configured credentials.
Updated `TestClient_AuthSCRAMSHA1PLUS_tlsexporter` and `TestClient_AuthSCRAMSHA1PLUS_tlsunique` to test both SCRAM-SHA-1-PLUS and SCRAM-SHA-256-PLUS authentication types. Implemented table-driven tests to improve readability and maintainability.