Use go test as unit test runner (nginx#2613)

Problem: Switching to using ginkgo as the test runner caused some issues with verbose output and difficulty finding test failures. This could also be exacerbated by the fact that we mix standard go test style with ginkgo framework tests.

Solution: For now, switch back to using go test as the runner, since the output is cleaner and easier to find errors.

Author: miledxz

Diff for: .codecov.yml

@@ -5,3 +5,5 @@ coverage:
         informational: true
 comment:
   require_changes: true
+ignore:
+  - "**/fake_*.go"

Diff for: .github/workflows/ci.yml

@@ -90,7 +90,7 @@ jobs:
             .github/.cache/buster-for-unit-tests
 
       - name: Run Tests
-        run: make unit-test CI=true
+        run: make unit-test
 
       - name: Upload coverage reports to Codecov
         uses: codecov/codecov-action@e28ff129e5465c2c0dcc6f003fc735cb6ae0c673 # v4.5.0

Diff for: Makefile

@@ -55,10 +55,6 @@ ifneq (,$(findstring plus,$(MAKECMDGOALS)))
    PLUS_ENABLED = true
 endif
 
-ifeq ($(CI),true)
-	GITHUB_OUTPUT := --github-output
-endif
-
 .PHONY: help
 help: Makefile ## Display this help
 	@grep -hE '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "; printf "Usage:\n\n	make \033[36m<target>\033[0m [VARIABLE=value...]\n\nTargets:\n\n"}; {printf "	 \033[36m%-30s\033[0m %s\n", $$1, $$2}'
@@ -191,11 +187,8 @@ lint: ## Run golangci-lint against code
 
 .PHONY: unit-test
 unit-test: ## Run unit tests for the go code
-	# We have to run the tests in the cmd package using `go test` because of a bug with the CLI library cobra. See https://github.com/spf13/cobra/issues/2104.
-	go test -buildvcs ./cmd/... -race -shuffle=on -coverprofile=cmd-coverage.out -covermode=atomic
-	go run github.com/onsi/ginkgo/v2/ginkgo --randomize-all --randomize-suites --race --keep-going --fail-on-pending --fail-fast --trace --covermode=atomic --coverprofile=coverage.out --force-newlines $(GITHUB_OUTPUT) -p -v -r internal
+	go test ./cmd/... ./internal/... -buildvcs -race -shuffle=on -coverprofile=coverage.out -covermode=atomic
 	go tool cover -html=coverage.out -o cover.html
-	go tool cover -html=cmd-coverage.out -o cmd-cover.html
 
 .PHONY: njs-unit-test
 njs-unit-test: ## Run unit tests for the njs httpmatches module

Diff for: cmd/gateway/commands_test.go

@@ -40,21 +40,6 @@ func testFlag(t *testing.T, cmd *cobra.Command, test flagTestCase) {
 	}
 }
 
-/*
-This test cannot be run with ginkgo. Ginkgo reports the following error:
-* Unexpected error:
-*       <*errors.errorString | 0xc0004746b0>:
-*       unknown flag: --test.v
-*       {
-*           s: "unknown flag: --test.v",
-*       }
-*   occurred
-*
-* This is because cobra sets the args of the command to the OS args when args are nil, and adds the testing flags
-* that ginkgo passes to the testing binary as flags on the command. This does not happen with the `go test` flags
-* because those only have one dash (e.g. -test) and are ignored by cobra.
-* See https://github.com/spf13/cobra/issues/2104.
-*/
 func TestRootCmd(t *testing.T) {
 	t.Parallel()
 	testCase := flagTestCase{
@@ -410,21 +395,6 @@ func TestProvisionerModeCmdFlagValidation(t *testing.T) {
 	testFlag(t, createProvisionerModeCommand(), testCase)
 }
 
-/*
-This test cannot be run with ginkgo. Ginkgo reports the following error for the "omitted flag" case:
-* Unexpected error:
-*       <*errors.errorString | 0xc0004746b0>:
-*       unknown flag: --test.v
-*       {
-*           s: "unknown flag: --test.v",
-*       }
-*   occurred
-*
-* This is because cobra sets the args of the command to the OS args when args are nil, and adds the testing flags
-* that ginkgo passes to the testing binary as flags on the command. This does not happen with the `go test` flags
-* because those only have one dash (e.g. -test) and are ignored by cobra.
-* See https://github.com/spf13/cobra/issues/2104.
-*/
 func TestSleepCmdFlagValidation(t *testing.T) {
 	t.Parallel()
 	tests := []flagTestCase{

Diff for: tests/Makefile

@@ -30,6 +30,10 @@ ifneq ($(GINKGO_LABEL),)
 	override GINKGO_FLAGS += --label-filter "$(GINKGO_LABEL)"
 endif
 
+ifeq ($(CI),true)
+	GITHUB_OUTPUT := --github-output
+endif
+
 .PHONY: update-go-modules
 update-go-modules: ## Update the gateway-api go modules to latest main version
 	go get -u sigs.k8s.io/gateway-api@main