ci: fix coverage

.gitignore

@@ -4,3 +4,6 @@ _fuzz/*/crashers
 _fuzz/*/suppressions
 
 .idea
+
+# coverage and other outputs
+*.out

Makefile

@@ -22,4 +22,6 @@ fuzz-schema-coordinator:
 	go-fuzz -coordinator localhost:1105 -workdir _fuzz/schema/
 
 test:
-	go test ./...
+	@./go.test.sh
+coverage:
+	@./go.coverage.sh

go.coverage.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+set -e
+touch coverage.out
+
+for d in $(go list ./... | grep -v vendor); do
+    go test -coverprofile=profile.out -covermode=atomic "$d"
+    if [[ -f profile.out ]]; then
+        cat profile.out >> coverage.out
+        rm profile.out
+    fi
+done

go.test.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+set -e
+
+# test fuzz inputs
+go test -tags gofuzz -run TestFuzz -v .
+
+# test with -race
+go test -race ./...