Add code coverage support.

.circleci/config.yml

@@ -34,10 +34,7 @@ jobs:
             go get github.com/davecgh/go-spew/spew
             go get github.com/jstemmer/go-junit-report
 
-      - run: mkdir -p $TEST_RESULTS/unit-tests
-      - run: mkdir -p $TEST_RESULTS/integration-tests
-
-      - run: go test -v 2>&1 | go-junit-report > $TEST_RESULTS/unit-tests/results.xml
+            go install github.com/go-jet/jet/cmd/jet
 
       - run:
           name: Waiting for Postgres to be ready
@@ -51,13 +48,19 @@ jobs:
             echo Failed waiting for Postgres && exit 1
 
       - run:
-          name: Run integration tests
+          name: Init Postgres database
           command: |
             cd tests
             go run ./init/init.go
-            go test -v 2>&1 | go-junit-report > $TEST_RESULTS/integration-tests/results.xml
             cd ..
 
+      - run: mkdir -p $TEST_RESULTS
+      - run: go test -v . ./tests -coverpkg=github.com/go-jet/jet,github.com/go-jet/jet/execution/...,github.com/go-jet/jet/generator/...,github.com/go-jet/jet/internal/... -coverprofile=cover.out 2>&1 | go-junit-report > $TEST_RESULTS/results.xml
+
+      - run:
+          name: Upload code coverage
+          command: bash <(curl -s https://codecov.io/bash)
+
       - store_artifacts: # Upload test summary for display in Artifacts: https://circleci.com/docs/2.0/artifacts/
           path: /tmp/test-results
           destination: raw-test-output

clause.go

@@ -199,11 +199,6 @@ func (q *sqlBuilder) insertParametrizedArgument(arg interface{}) {
 	q.writeString(argPlaceholder)
 }
 
-func (q *sqlBuilder) reset() {
-	q.buff.Reset()
-	q.args = []interface{}{}
-}
-
 func argToString(value interface{}) string {
 	if isNil(value) {
 		return "NULL"

execution/execution.go

@@ -743,16 +743,6 @@ func (s *scanContext) typeToColumnIndex(typeName, fieldName string) int {
 	return index
 }
 
-func (s *scanContext) getCellValue(typeName, fieldName string) interface{} {
-	index := s.typeToColumnIndex(typeName, fieldName)
-
-	if index < 0 {
-		return nil
-	}
-
-	return s.rowElem(index)
-}
-
 func (s *scanContext) rowElem(index int) interface{} {
 
 	valuer, ok := s.row[index].(driver.Valuer)