ci(coverage): raise processor coverage gate to 75%

Signed-off-by: night-slayer18 <samanuaia257@gmail.com>

Author: night-slayer18

.github/workflows/ci.yml

@@ -48,7 +48,7 @@ jobs:
           go test -count=1 -coverpkg=./processors/... -coverprofile=coverage.out ./tests/...
           COVERAGE=$(go tool cover -func=coverage.out | awk '/^total:/ {gsub("%","",$3); print $3}')
           echo "Total coverage: ${COVERAGE}%"
-          awk -v c="$COVERAGE" 'BEGIN { if (c+0 < 50) { exit 1 } }'
+          awk -v c="$COVERAGE" 'BEGIN { if (c+0 < 75) { exit 1 } }'
 
       - name: GoReleaser config check
         if: matrix.os == 'ubuntu-latest'

CONTRIBUTING.md

@@ -60,6 +60,18 @@ func TestMyProcessor_Transform(t *testing.T) {
 go test -v -race -count=1 ./tests/...
 ```
 
+## Test Expectations for New Processors
+
+- Add tests that cover:
+  - normal transform behavior
+  - at least one error or edge-case path (for example invalid input or missing required flags)
+- Keep processor coverage healthy with:
+
+```bash
+go test -count=1 -coverpkg=./processors/... -coverprofile=coverage.out ./tests/...
+go tool cover -func=coverage.out
+```
+
 ## License
 
 By contributing, you agree your contributions will be licensed under the Apache 2.0 License.