Add test for completion in strings/Python dictionaries

Author: krassowski

atest/05_Features/Completion.robot

@@ -102,11 +102,24 @@ Works After Kernel Restart In New Cells
 Works In File Editor
     [Setup]    Prepare File for Editing    Python    completion    completion.py
     Place Cursor In File Editor At    9    2
-    Capture Page Screenshot    01-editor-ready.png
+    Wait Until Fully Initialized
     Trigger Completer
     Completer Should Suggest    add
     [Teardown]    Clean Up After Working With File    completion.py
 
+Completes In Strings Or Python Dictionaries
+    [Setup]    Prepare File for Editing    Python    completion    completion.py
+    Place Cursor In File Editor At    16    0
+    Wait Until Fully Initialized
+    Press Keys    None    test_dict['']
+    Place Cursor In File Editor At    16    11
+    Trigger Completer
+    # note: in jedi-language-server this would be key_a without '
+    Completer Should Suggest    'key_a
+    Select Completer Suggestion    'key_a
+    Wait Until Keyword Succeeds    40x    0.5s    File Editor Line Should Equal    15    test_dict['key_a']
+    [Teardown]    Clean Up After Working With File    completion.py
+
 Continious Hinting Works
     Configure JupyterLab Plugin    {"continuousHinting": true}    plugin id=${COMPLETION PLUGIN ID}
     Prepare File for Editing    Python    completion    completion.py

atest/examples/completion.py

@@ -6,4 +6,10 @@ def add(a: int, b: int):
     return a, b
 
 
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+
+
+test_dict = {
+    'key_a': 1,
+    'key_b': 2
+}