Look for query string into more fields when searching for libs (#499)

* extend search fields for libs, added tests

* adjust tests

Author: Massimiliano Pippi

Diff for: commands/lib/search.go

@@ -37,7 +37,10 @@ func LibrarySearch(ctx context.Context, req *rpc.LibrarySearchReq) (*rpc.Library
 	res := []*rpc.SearchedLibrary{}
 
 	for _, lib := range lm.Index.Libraries {
-		if strings.Contains(strings.ToLower(lib.Name), strings.ToLower(req.GetQuery())) {
+		qry := strings.ToLower(req.GetQuery())
+		if strings.Contains(strings.ToLower(lib.Name), qry) ||
+			strings.Contains(strings.ToLower(lib.Latest.Paragraph), qry) ||
+			strings.Contains(strings.ToLower(lib.Latest.Sentence), qry) {
 			releases := map[string]*rpc.LibraryRelease{}
 			for str, rel := range lib.Releases {
 				releases[str] = GetLibraryParameters(rel)

Diff for: test/test_lib.py

@@ -105,4 +105,18 @@ def test_search(run_command):
     result = run_command("lib search ArduinoJson --format json")
     assert result.ok
     libs_json = json.loads(result.stdout)
+    assert len(libs_json.get("libraries")) >= 1
+
+
+def test_search_paragraph(run_command):
+    """
+    Search for a string that's only present in the `paragraph` field
+    within the index file.
+    """
+    assert run_command("lib update-index")
+    result = run_command(
+        'lib search "An efficient and elegant JSON library" --format json'
+    )
+    assert result.ok
+    libs_json = json.loads(result.stdout)
     assert 1 == len(libs_json.get("libraries"))