Function RunSplitTests

backend/plugin/parser/base/split_test_runner.go:118–144

RunSplitTests loads YAML test cases and runs them against a SplitSQL function. For engines with dual implementations (lexer and parser), it enforces that both produce identical results when both succeed. When run with -record flag, it updates the YAML file with actual results: go test -run TestXx

(t *testing.T, testDataPath string, opts SplitTestOptions)

//
//	go test -run TestXxxSplitSQL -args -record
func RunSplitTests(t *testing.T, testDataPath string, opts SplitTestOptions) {
	t.Helper()

	require.NotNil(t, opts.SplitFunc, "SplitFunc is required")

	// Get the full path to the test file
	_, callerFile, _, ok := runtime.Caller(1)
	require.True(t, ok, "failed to get caller info")
	callerDir := filepath.Dir(callerFile)
	fullPath := filepath.Join(callerDir, testDataPath)

	// Caller depth 2: skip loadTestCases (1) and RunSplitTests (2) to get the actual test function
	testCases := loadTestCases(t, testDataPath, 2)
	require.NotEmpty(t, testCases, "no test cases found in %s", testDataPath)

	// Record mode: update expected results in YAML file
	if *record {
		recordTestResults(t, fullPath, testCases, opts)
		return
	}

	for _, tc := range testCases {
		t.Run(tc.Description, func(t *testing.T) {
			runSingleTest(t, tc, opts)
		})
	}
}

// recordTestResults runs all test cases and updates the YAML file with actual results.
func recordTestResults(t *testing.T, fullPath string, testCases []SplitTestCase, opts SplitTestOptions) {