Prevent NPE in exportAndVerifyScript

[labkey-tchad]

Rationale

A test hit an NPE when fetching page source before a new tab finished loading.

java.lang.NullPointerException: Cannot invoke "String.trim()" because the return value of "org.labkey.test.WebDriverWrapper.getHtmlSource()" is null
  at org.labkey.test.util.DataRegionExportHelper.lambda$3(DataRegionExportHelper.java:85)
  at org.labkey.test.util.Timer.waitFor(Timer.java:91)
  at org.labkey.test.util.Timer.waitFor(Timer.java:102)
  at org.labkey.test.util.Timer.waitFor(Timer.java:112)
  at org.labkey.test.WebDriverWrapper.waitFor(WebDriverWrapper.java:2383)
  at org.labkey.test.util.DataRegionExportHelper.exportAndVerifyScript(DataRegionExportHelper.java:84)
  at org.labkey.test.tests.AbstractExportTest.testCreatePythonScriptNoFilter(AbstractExportTest.java:225)

Related Pull Requests

• N/A

Changes

• Prevent NPE in exportAndVerifyScript