chore(bigquery-jdbc): refactor tests to remove hardcoded base uri

[logachev]

No description provided.

[gemini-code-assist]

Code Review

This pull request introduces a helper method getBaseConnectionUrl() in TestUtilities to centralize and parameterize the base JDBC connection URL, and updates various integration tests to use this method instead of hardcoded strings. The review identified several critical compilation errors related to string concatenation and syntax in the updated test files, as well as minor cleanup opportunities for redundant string concatenations.

[logachev]

/gemini review

[gemini-code-assist]

Code Review

This pull request refactors the integration tests to dynamically construct the BigQuery JDBC connection URL using environment variables or system properties, replacing hardcoded URL strings across multiple test classes. Feedback suggests improving the robustness of the URL flag parsing in TestUtilities, declaring the shared connectionUrl in ITBase as final to ensure immutability, and avoiding redundant caching of the connection URL in local class fields across several test files by referencing ITBase.connectionUrl directly.

[gemini-code-assist]

The current implementation of getBaseConnectionUrl is fragile if getUrlFlags() returns a string with leading/trailing whitespaces or a leading semicolon (e.g., from environment variables or system properties). Trimming the flags and stripping any leading semicolon makes the URL construction much more robust.

  public static String getBaseConnectionUrl() {
    String baseUrl = getBaseUrl();
    String flags = getUrlFlags().trim();
    if (flags.startsWith(";")) {
      flags = flags.substring(1);
    }
    if (!flags.isEmpty() && !flags.endsWith(";")) {
      flags += ";";
    }
    return "jdbc:bigquery://" + baseUrl + ";" + flags;
  }

[gemini-code-assist]

The connectionUrl field is a constant used across multiple integration test classes. Declaring it as final prevents accidental re-assignment and ensures immutability.

Suggested change

	public static String connectionUrl =
	"jdbc:bigquery://https://www.googleapis.com/bigquery/v2:443;ProjectId="
	+ DEFAULT_CATALOG
	+ ";OAuthType=3;Timeout=3600;";
	getBaseConnectionUrl() + "ProjectId=" + DEFAULT_CATALOG + ";OAuthType=3;Timeout=3600;";
	public static final String connectionUrl =
	getBaseConnectionUrl() + "ProjectId=" + DEFAULT_CATALOG + ";OAuthType=3;Timeout=3600;";

[gemini-code-assist]

Avoid caching the connection URL (which is derived from system properties or environment variables) in a local class field. Since it is only evaluated once, caching it is unnecessary. Reference ITBase.connectionUrl directly instead.

References

1. Avoid caching system properties or environment variables in class fields if they are only evaluated once during object initialization, as caching is unnecessary in such cases.

[gemini-code-assist]

Avoid caching the connection URL (which is derived from system properties or environment variables) in a local class field. Since it is only evaluated once, caching it is unnecessary. Reference ITBase.connectionUrl directly instead.

References

1. Avoid caching system properties or environment variables in class fields if they are only evaluated once during object initialization, as caching is unnecessary in such cases.

[gemini-code-assist]

Avoid caching the connection URL (which is derived from system properties or environment variables) in a local class field. Since it is only evaluated once, caching it is unnecessary. Reference ITBase.connectionUrl directly instead.

References

1. Avoid caching system properties or environment variables in class fields if they are only evaluated once during object initialization, as caching is unnecessary in such cases.