From 24869e15322573a7eda3e2b6eef07b10f1856616 Mon Sep 17 00:00:00 2001
From: Asher Foa <1268088+asherf@users.noreply.github.com>
Date: Sat, 15 Aug 2020 15:12:58 -0700
Subject: [PATCH] Add support for JSON coverage report

https://coverage.readthedocs.io/en/coverage-5.2.1/config.html?highlight=json%20report#json
---
 src/python/pants/backend/python/rules/coverage.py | 2 ++
 src/python/pants/core/goals/test.py               | 1 +
 2 files changed, 3 insertions(+)

diff --git a/src/python/pants/backend/python/rules/coverage.py b/src/python/pants/backend/python/rules/coverage.py
index db3fe75e262c..d34d7427a7e7 100644
--- a/src/python/pants/backend/python/rules/coverage.py
+++ b/src/python/pants/backend/python/rules/coverage.py
@@ -309,6 +309,8 @@ def _get_coverage_reports(
             report_file = output_dir / "htmlcov" / "index.html"
         elif report_type == CoverageReportType.XML:
             report_file = output_dir / "coverage.xml"
+        elif report_type == CoverageReportType.JSON:
+            report_file = output_dir / "coverage.json"
         else:
             raise ValueError(f"Invalid coverage report type: {report_type}")
         coverage_reports.append(
diff --git a/src/python/pants/core/goals/test.py b/src/python/pants/core/goals/test.py
index 91debf29da1f..fb40802d8d20 100644
--- a/src/python/pants/core/goals/test.py
+++ b/src/python/pants/core/goals/test.py
@@ -46,6 +46,7 @@ class CoverageReportType(Enum):
     XML = ("xml", None)
     HTML = ("html", None)
     RAW = ("raw", None)
+    JSON = ("json", None)
 
     _report_name: str