Raphael Raphael - 16 days ago 5
HTML Question

Robot Framework Download File

I use Robot Framework.

On my HTML page I have a simple button. When you click on it, it downloads a pdf file.

How can I check with Robot Framework if the file has been downloaded ?


I found a solution, tks to @ombre42 :

${NAME} Robot
${FILE_NAME} Robot.pdf
${DOWNLOAD_DIRECTORY} C:\\robot_download

Scenario: User can download
Create Directory ${DOWNLOAD_DIRECTORY}
${CHROME_OPTIONS}= Evaluate sys.modules['selenium.webdriver'].ChromeOptions() sys, selenium.webdriver
${disabled} Create List Chrome PDF Viewer
${prefs} Create Dictionary download.default_directory=${DOWNLOAD_DIRECTORY} plugins.plugins_disabled=${disabled}
Call Method ${CHROME_OPTIONS} add_experimental_option prefs ${prefs}
Create Webdriver Chrome chrome_options=${CHROME_OPTIONS}
Goto ${SERVER}
Click Element ${NAME}
Wait Until Element Is Visible css=div.${CLASS_NAME} 8
Page Should Contain ${NAME}
Set Selenium Speed 10s
Download PDF ${NAME}
File Should Exist C:\\robot_download\\${FILE_NAME}


The solution is very browser specific. For Chrome, you can tell Chrome where to download files. Choosing a new folder allows you to monitor the status of the download. Also, since you are downloading a PDF, disabling the PDF plugin is necessary to prevent the PDF from being displayed instead of downloaded. Here is a test that worked on my machine using a simple page and PDF file.

*** Settings ***
Test Teardown     Close All Browsers
Library           Selenium2Library
Library           OperatingSystem

*** Test Cases ***
Download PDF
    # create unique folder
    ${now}    Get Time    epoch
    ${download directory}    Join Path    ${OUTPUT DIR}    downloads_${now}
    Create Directory    ${download directory}
    ${chrome options}=    Evaluate    sys.modules['selenium.webdriver'].ChromeOptions()    sys, selenium.webdriver
    # list of plugins to disable. disabling PDF Viewer is necessary so that PDFs are saved rather than displayed
    ${disabled}    Create List    Chrome PDF Viewer
    ${prefs}    Create Dictionary    download.default_directory=${download directory}    plugins.plugins_disabled=${disabled}
    Call Method    ${chrome options}    add_experimental_option    prefs    ${prefs}
    Create Webdriver    Chrome    chrome_options=${chrome options}
    Goto    http://localhost/download.html
    Click Link    link    # downloads a file
    # wait for download to finish
    ${file}    Wait Until Keyword Succeeds    1 min    2 sec    Download should be done    ${download directory}

*** Keywords ***
Download should be done
    [Arguments]    ${directory}
    [Documentation]    Verifies that the directory has only one folder and it is not a temp file.
    ...    Returns path to the file
    ${files}    List Files In Directory    ${directory}
    Length Should Be    ${files}    1    Should be only one file in the download folder
    Should Not Match Regexp    ${files[0]}    (?i).*\\.tmp    Chrome is still downloading a file
    ${file}    Join Path    ${directory}    ${files[0]}
    Log    File was successfully downloaded to ${file}
    [Return]    ${file}

Contents of download.html:

<html><body><a href="file.pdf" id="link">Click Here</a></body></html>