feat: add coverage scripts

Signed-off-by: Eshaan Aggarwal <96648934+EshaanAgg@users.noreply.github.com>

.gitignore

@@ -86,3 +86,6 @@ report
 
 # plan test output
 /go/vt/vtgate/planbuilder/testdata/plan_test*
+
+# coverage output
+coverage.out

Makefile

@@ -423,3 +423,22 @@ generate-flag-testdata:
 
 install_kubectl_kind:
 	./tools/get_kubectl_kind.sh
+
+
+
+# Scripts related to test coverage
+PACKAGE ?= ./go/...
+
+coverage:
+	go test -coverprofile=coverage.out $(PACKAGE)
+	go tool cover -html=coverage.out
+
+coverage-clean:
+	rm -f coverage.out
+
+coverage-help:
+	@echo "Usage: make [OPTIONS] coverage"
+	@echo "Options:"
+	@echo "  PACKAGE=<name>			Specify the package to test (default: $(PACKAGE))"
+	@echo "  coverage				Run tests and generate coverage report"
+	@echo "  coverage-clean			Clean up generated files"

go.mod

@@ -185,6 +185,7 @@ require (
 	go.uber.org/zap v1.26.0 // indirect
 	go4.org/intern v0.0.0-20230525184215-6c62f75575cb // indirect
 	go4.org/unsafe/assume-no-moving-gc v0.0.0-20231121144256-b99613f794b6 // indirect
+	golang.org/x/tools/cmd/cover v0.1.0-deprecated // indirect
 	golang.org/x/xerrors v0.0.0-20231012003039-104605ab7028 // indirect
 	google.golang.org/appengine v1.6.8 // indirect
 	google.golang.org/genproto/googleapis/api v0.0.0-20240116215550-a9fa1716bcac // indirect

go.sum

@@ -698,6 +698,8 @@ golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
 golang.org/x/tools v0.17.0 h1:FvmRgNOcs3kOa+T20R1uhfP9F6HgG2mfxDv1vrx1Htc=
 golang.org/x/tools v0.17.0/go.mod h1:xsh6VxdV005rRVaS6SSAf9oiAqljS7UZUacMZ8Bnsps=
+golang.org/x/tools/cmd/cover v0.1.0-deprecated h1:Rwy+mWYz6loAF+LnG1jHG/JWMHRMMC2/1XX3Ejkx9lA=
+golang.org/x/tools/cmd/cover v0.1.0-deprecated/go.mod h1:hMDiIvlpN1NoVgmjLjUJE9tMHyxHjFX7RuQ+rW12mSA=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=