add integration test

quickwit/rest-api-tests/scenarii/es_compatibility/bulk/_teardown.quickwit.yaml

@@ -4,4 +4,8 @@ endpoint: indexes/test-index
 ---
 method: DELETE
 api_root: http://localhost:7280/api/v1/
+endpoint: indexes/test-index-pattern-777
+---
+method: DELETE
+api_root: http://localhost:7280/api/v1/
 endpoint: templates/test-index-template

quickwit/rest-api-tests/scenarii/qw_search_api/0004_empty_string.yaml

@@ -0,0 +1,49 @@
+# This tests a simple request with no queries.
+endpoint: empty-string/search
+params:
+  query: "str:''"
+expected:
+  num_hits: 2
+---
+endpoint: empty-string/search
+params:
+  query: "str_array:''"
+expected:
+  num_hits: 2
+---
+endpoint: empty-string/search
+params:
+  query: "dyn_str:''"
+expected:
+  num_hits: 2
+---
+endpoint: empty-string/search
+params:
+  query: "dyn_str_array:''"
+expected:
+  num_hits: 2
+---
+endpoint: empty-string/search
+params:
+  query: "str:'' AND str_array:ghi"
+expected:
+  num_hits: 1
+---
+endpoint: empty-string/search
+params:
+  query: "str_array:'' AND str_array:ghi"
+expected:
+  num_hits: 1
+---
+endpoint: empty-string/search
+params:
+  query: "dyn_str:'' AND str_array:ghi"
+expected:
+  num_hits: 1
+---
+endpoint: empty-string/search
+params:
+  query: "dyn_str_array:'' AND str_array:ghi"
+expected:
+  num_hits: 1
+---

quickwit/rest-api-tests/scenarii/qw_search_api/_setup.quickwit.yaml

@@ -82,3 +82,32 @@ params:
   commit: force
 ndjson:
   - {"seq": 4, "tag": 1}
+---
+method: DELETE
+endpoint: indexes/empty-string
+status_code: null
+---
+# Create index
+method: POST
+endpoint: indexes/
+json:
+  version: "0.7"
+  index_id: empty-string
+  doc_mapping:
+    mode: dynamic
+    field_mappings:
+      - name: str
+        type: text
+      - name: str_array
+        type: array<text>
+---
+# Ingest documents
+method: POST
+endpoint: empty-string/ingest
+params:
+  commit: force
+ndjson:
+  - {"str": "abc", "str_array": ["abc", "def"], "dyn_str": "abc", "dyn_str_array": ["abc", "def"]}
+  - {"str": "", "str_array": [""], "dyn_str": "", "dyn_str_array": [""]}
+  - {"str": "", "str_array": ["ghi", ""], "dyn_str": "", "dyn_str_array": ["ghi", ""]}
+  - {"str_array": [], "dyn_str_array": []}

quickwit/rest-api-tests/scenarii/qw_search_api/_teardown.quickwit.yaml

@@ -4,3 +4,6 @@ endpoint: indexes/simple
 ---
 method: DELETE
 endpoint: indexes/tagged
+---
+method: DELETE
+endpoint: indexes/empty-string