Add completer themes acceptance tests

Author: krassowski

atest/05_Features/Completion.robot

@@ -113,6 +113,60 @@ Triggers Completer On Dot
     Wait Until Page Contains Element    ${COMPLETER_BOX}    timeout=35s
     Completer Should Suggest    append
 
+Material Theme Works
+    Configure JupyterLab Plugin    {"theme": "material"}     plugin id=${COMPLETION PLUGIN ID}
+    Capture Page Screenshot    01-configured.png
+    Enter Cell Editor    1    line=2
+    Trigger Completer
+    Capture Page Screenshot    02-completions-shown.png
+    # TabError is a builtin exception which is a class in Python,
+    # so we should get lsp:material-class-light icon:
+    Completer Should Suggest    TabError
+    Completer Should Include Icon  lsp:material-class-light
+
+VSCode Theme Works
+    Configure JupyterLab Plugin    {"theme": "vscode"}     plugin id=${COMPLETION PLUGIN ID}
+    Capture Page Screenshot    01-configured.png
+    Enter Cell Editor    1    line=2
+    Trigger Completer
+    Capture Page Screenshot    02-completions-shown.png
+    Completer Should Suggest    TabError
+    Completer Should Include Icon  lsp:vscode-class-light
+
+VSCode Dark Theme Works
+    ${file} =   Set Variable    Completion.ipynb
+    Lab Command    Use JupyterLab Dark Theme
+    Wait For Splash
+    Capture Page Screenshot    00-theme-changed.png
+    Configure JupyterLab Plugin    {"theme": "vscode"}     plugin id=${COMPLETION PLUGIN ID}
+    Capture Page Screenshot    01-configured.png
+    Open ${file} in ${MENU NOTEBOOK}
+    Enter Cell Editor    1    line=2
+    Trigger Completer
+    Capture Page Screenshot    02-completions-shown.png
+    Completer Should Suggest    TabError
+    Completer Should Include Icon  lsp:vscode-class-dark
+    Lab Command    Use JupyterLab Light Theme
+    Wait For Splash
+
+Works Without A Theme
+    Configure JupyterLab Plugin    {"theme": null}     plugin id=${COMPLETION PLUGIN ID}
+    Capture Page Screenshot    01-configured.png
+    Enter Cell Editor    1    line=2
+    Trigger Completer
+    Capture Page Screenshot    02-completions-shown.png
+    Completer Should Suggest    TabError
+    Wait Until Page Contains Element    ${COMPLETER_BOX} .jp-Completer-monogram
+
+Works With Incorrect Theme
+    Configure JupyterLab Plugin    {"theme": "a-non-existing-theme"}     plugin id=${COMPLETION PLUGIN ID}
+    Capture Page Screenshot    01-configured.png
+    Enter Cell Editor    1    line=2
+    Trigger Completer
+    Capture Page Screenshot    02-completions-shown.png
+    Completer Should Suggest    TabError
+    Wait Until Page Contains Element    ${COMPLETER_BOX} .jp-Completer-monogram
+
 *** Keywords ***
 Setup Completion Test
     Setup Notebook    Python    Completion.ipynb
@@ -139,6 +193,10 @@ Completer Should Suggest
     Wait Until Page Contains Element    ${COMPLETER_BOX} .jp-Completer-item[data-value="${text}"]
     Capture Page Screenshot    ${text.replace(' ', '_')}.png
 
+Completer Should Include Icon
+    [Arguments]    ${icon}
+    Wait Until Page Contains Element    ${COMPLETER_BOX} svg[data-icon="${icon}"]
+
 Completer Should Not Suggest
     [Arguments]    ${text}
     Wait Until Page Does Not Contain Element    ${COMPLETER_BOX} .jp-Completer-item[data-value="${text}"]

atest/Variables.robot

@@ -33,6 +33,7 @@ ${CM CURSOR}      css:.CodeMirror-cursor
 ${CM CURSORS}     css:.CodeMirror-cursors:not([style='visibility: hidden'])
 # settings
 ${LSP PLUGIN ID}    @krassowski/jupyterlab-lsp:plugin
+${COMPLETION PLUGIN ID}    @krassowski/jupyterlab-lsp:completion
 ${LSP PLUGIN SETTINGS FILE}    @krassowski${/}jupyterlab-lsp${/}plugin.jupyterlab-settings
 ${CSS USER SETTINGS}    .jp-SettingsRawEditor-user
 ${JLAB XP CLOSE SETTINGS}    ${JLAB XP DOCK TAB}\[contains(., 'Settings')]/*[contains(@class, 'm-TabBar-tabCloseIcon')]