diff --git a/hivemind/tavern/condenser_api_negative/get_discussions_by_comments/unexpected_keyword.orig.json b/hivemind/tavern/condenser_api_negative/get_discussions_by_comments/unexpected_keyword.orig.json
new file mode 100644
index 0000000000000000000000000000000000000000..1aa7cad336fd4fe73955c701ce817b927f2bcb8b
--- /dev/null
+++ b/hivemind/tavern/condenser_api_negative/get_discussions_by_comments/unexpected_keyword.orig.json
@@ -0,0 +1,5 @@
+{
+ "code": -32602,
+ "data": "get_discussions_by_comments() got an unexpected keyword argument 'author'",
+ "message": "Invalid parameters"
+}
diff --git a/hivemind/tavern/condenser_api_negative/get_discussions_by_comments/unexpected_keyword.pat.json b/hivemind/tavern/condenser_api_negative/get_discussions_by_comments/unexpected_keyword.pat.json
new file mode 100644
index 0000000000000000000000000000000000000000..1aa7cad336fd4fe73955c701ce817b927f2bcb8b
--- /dev/null
+++ b/hivemind/tavern/condenser_api_negative/get_discussions_by_comments/unexpected_keyword.pat.json
@@ -0,0 +1,5 @@
+{
+ "code": -32602,
+ "data": "get_discussions_by_comments() got an unexpected keyword argument 'author'",
+ "message": "Invalid parameters"
+}
diff --git a/hivemind/tavern/condenser_api_negative/get_discussions_by_comments/unexpected_keyword.tavern.yaml b/hivemind/tavern/condenser_api_negative/get_discussions_by_comments/unexpected_keyword.tavern.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..3ee3bbe211ade958779d14544ad8eed4bcc5478c
--- /dev/null
+++ b/hivemind/tavern/condenser_api_negative/get_discussions_by_comments/unexpected_keyword.tavern.yaml
@@ -0,0 +1,31 @@
+---
+ test_name: Hivemind condenser_api.get_discussions_by_comments unexpected keyword patterns test
+
+ marks:
+ - patterntest
+ - negative
+ # while this would be acceptable we should change it to invalid parameters over server error (code suggests we wanted to completely silence that, but rest passes is as generic error, old code was the same so...)
+
+ includes:
+ - !include ../../common.yaml
+
+ stages:
+ - name: get_replies_by_last_update unexpected keyword
+ request:
+ url: "{service.proto:s}://{service.server:s}:{service.port}/"
+ method: POST
+ headers:
+ content-type: application/json
+ json:
+ jsonrpc: "2.0"
+ id: 1
+ method: "condenser_api.get_discussions_by_comments"
+ params: [{"author": "steemit"}]
+ response:
+ status_code: 200
+ verify_response_with:
+ function: validate_response:compare_response_with_pattern
+ extra_kwargs:
+ method: "unexpected_keyword"
+ directory: "condenser_api_negative/get_discussions_by_comments"
+ error_response: true
\ No newline at end of file
diff --git a/hivemind/tavern/condenser_api_patterns/get_discussions_by_comments/admin.orig.json b/hivemind/tavern/condenser_api_patterns/get_discussions_by_comments/admin.orig.json
new file mode 100644
index 0000000000000000000000000000000000000000..2b914187e1b6c4875aa01fb3c8065b4072bd9d8e
--- /dev/null
+++ b/hivemind/tavern/condenser_api_patterns/get_discussions_by_comments/admin.orig.json
@@ -0,0 +1,94 @@
+[
+ {
+ "active_votes": [
+ {
+ "percent": "-100",
+ "reputation": 0,
+ "rshares": "-375241",
+ "voter": "dantheman"
+ },
+ {
+ "percent": "10000",
+ "reputation": 0,
+ "rshares": "5100",
+ "voter": "steemit46"
+ },
+ {
+ "percent": "10000",
+ "reputation": 0,
+ "rshares": "81125",
+ "voter": "roadscape"
+ },
+ {
+ "percent": "10000",
+ "reputation": 0,
+ "rshares": "425903066",
+ "voter": "gekko"
+ },
+ {
+ "percent": "10000",
+ "reputation": 0,
+ "rshares": "431616594",
+ "voter": "acidyo"
+ },
+ {
+ "percent": "10000",
+ "reputation": 0,
+ "rshares": "742566481",
+ "voter": "patrick-g"
+ },
+ {
+ "percent": "10000",
+ "reputation": 0,
+ "rshares": "58854897335",
+ "voter": "business"
+ },
+ {
+ "percent": "10000",
+ "reputation": 0,
+ "rshares": "108855472",
+ "voter": "kingtylervvs"
+ },
+ {
+ "percent": "10000",
+ "reputation": 0,
+ "rshares": "244129227",
+ "voter": "kewpiedoll"
+ },
+ {
+ "percent": "10000",
+ "reputation": 0,
+ "rshares": "1615731741",
+ "voter": "naturalista"
+ }
+ ],
+ "author": "admin",
+ "author_reputation": 0,
+ "beneficiaries": [],
+ "body": "First Reply! Let's get this **party** started",
+ "body_length": 45,
+ "cashout_time": "1969-12-31T23:59:59",
+ "category": "meta",
+ "children": 2,
+ "created": "2016-03-30T19:52:30",
+ "curator_payout_value": "0.000 HBD",
+ "depth": 1,
+ "json_metadata": "{}",
+ "last_payout": "2016-08-24T19:59:42",
+ "last_update": "2016-03-30T19:52:30",
+ "max_accepted_payout": "1000000.000 HBD",
+ "net_rshares": 62423410900,
+ "parent_author": "steemit",
+ "parent_permlink": "firstpost",
+ "pending_payout_value": "0.000 HBD",
+ "percent_steem_dollars": 10000,
+ "permlink": "firstpost",
+ "post_id": 2,
+ "promoted": "0.000 HBD",
+ "replies": [],
+ "root_title": "Welcome to Steem!",
+ "title": "",
+ "total_payout_value": "0.000 HBD",
+ "url": "/meta/@steemit/firstpost#@admin/firstpost"
+ }
+]
diff --git a/hivemind/tavern/condenser_api_patterns/get_discussions_by_comments/admin.pat.json b/hivemind/tavern/condenser_api_patterns/get_discussions_by_comments/admin.pat.json
new file mode 100644
index 0000000000000000000000000000000000000000..e58f0c1b584d619dbec55f9d523470d9248370a3
--- /dev/null
+++ b/hivemind/tavern/condenser_api_patterns/get_discussions_by_comments/admin.pat.json
@@ -0,0 +1,94 @@
+[
+ {
+ "active_votes": [
+ {
+ "percent": "-100",
+ "reputation": 0,
+ "rshares": "-375241",
+ "voter": "dantheman"
+ },
+ {
+ "percent": "10000",
+ "reputation": 0,
+ "rshares": "5100",
+ "voter": "steemit46"
+ },
+ {
+ "percent": "10000",
+ "reputation": 0,
+ "rshares": "81125",
+ "voter": "roadscape"
+ },
+ {
+ "percent": "10000",
+ "reputation": 0,
+ "rshares": "425903066",
+ "voter": "gekko"
+ },
+ {
+ "percent": "10000",
+ "reputation": 0,
+ "rshares": "431616594",
+ "voter": "acidyo"
+ },
+ {
+ "percent": "10000",
+ "reputation": 0,
+ "rshares": "742566481",
+ "voter": "patrick-g"
+ },
+ {
+ "percent": "10000",
+ "reputation": 0,
+ "rshares": "58854897335",
+ "voter": "business"
+ },
+ {
+ "percent": "10000",
+ "reputation": 0,
+ "rshares": "108855472",
+ "voter": "kingtylervvs"
+ },
+ {
+ "percent": "10000",
+ "reputation": 0,
+ "rshares": "244129227",
+ "voter": "kewpiedoll"
+ },
+ {
+ "percent": "10000",
+ "reputation": 0,
+ "rshares": "1615731741",
+ "voter": "naturalista"
+ }
+ ],
+ "author": "admin",
+ "author_reputation": 0,
+ "beneficiaries": [],
+ "body": "First Reply! Let's get this **party** started",
+ "body_length": 45,
+ "cashout_time": "1969-12-31T23:59:59",
+ "category": "meta",
+ "children": 2,
+ "created": "2016-03-30T19:52:30",
+ "curator_payout_value": "0.000 HBD",
+ "depth": 1,
+ "json_metadata": "",
+ "last_payout": "2016-08-24T19:59:42",
+ "last_update": "2016-03-30T19:52:30",
+ "max_accepted_payout": "1000000.000 HBD",
+ "net_rshares": 62423410900,
+ "parent_author": "steemit",
+ "parent_permlink": "firstpost",
+ "pending_payout_value": "0.000 HBD",
+ "percent_hbd": 10000,
+ "permlink": "firstpost",
+ "post_id": 2,
+ "promoted": "0.000 HBD",
+ "replies": [],
+ "root_title": "Welcome to Steem!",
+ "title": "",
+ "total_payout_value": "0.000 HBD",
+ "url": "/meta/@steemit/firstpost#@admin/firstpost"
+ }
+]
\ No newline at end of file
diff --git a/hivemind/tavern/condenser_api_patterns/get_discussions_by_comments/admin.tavern.yaml b/hivemind/tavern/condenser_api_patterns/get_discussions_by_comments/admin.tavern.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..4f75c65b2b778b627d0979a8c3d27b4846029be2
--- /dev/null
+++ b/hivemind/tavern/condenser_api_patterns/get_discussions_by_comments/admin.tavern.yaml
@@ -0,0 +1,28 @@
+---
+ test_name: Hivemind condenser_api.get_discussions_by_comments patterns test
+
+ marks:
+ - patterntest
+
+ includes:
+ - !include ../../common.yaml
+
+ stages:
+ - name: get_discussions_by_comments
+ request:
+ url: "{service.proto:s}://{service.server:s}:{service.port}/"
+ method: POST
+ headers:
+ content-type: application/json
+ json:
+ jsonrpc: "2.0"
+ id: 1
+ method: "condenser_api.get_discussions_by_comments"
+ params: {"start_author":"admin","start_permlink":"firstpost","limit":1}
+ response:
+ status_code: 200
+ verify_response_with:
+ function: validate_response:compare_response_with_pattern
+ extra_kwargs:
+ method: "admin"
+ directory: "condenser_api_patterns/get_discussions_by_comments"
\ No newline at end of file