feat: support new coverage format of Go 1.20 (#12)

Co-authored-by: Andrew Radamis <[email protected]>

parser/gotest/gotest.go

@@ -24,7 +24,7 @@ var (
 	// regexBenchInfo captures 3-5 groups: benchmark name, number of times ran, ns/op (with or without decimal), MB/sec (optional), B/op (optional), and allocs/op (optional).
 	regexBenchmark    = regexp.MustCompile(`^(Benchmark[^ -]+)$`)
 	regexBenchSummary = regexp.MustCompile(`^(Benchmark[^ -]+)(?:-\d+\s+|\s+)(\d+)\s+(\d+|\d+\.\d+)\sns\/op(?:\s+(\d+|\d+\.\d+)\sMB\/s)?(?:\s+(\d+)\sB\/op)?(?:\s+(\d+)\sallocs/op)?`)
-	regexCoverage     = regexp.MustCompile(`^coverage:\s+(\d+|\d+\.\d+)%\s+of\s+statements(?:\sin\s(.+))?$`)
+	regexCoverage     = regexp.MustCompile(`^(?:\s+\S+\s+)?coverage:\s+(\d+|\d+\.\d+)%\s+of\s+statements(?:\sin\s(.+))?$`)
 	regexEndBenchmark = regexp.MustCompile(`^--- (BENCH|FAIL|SKIP): (Benchmark[^ -]+)(?:-\d+)?$`)
 	regexEndTest      = regexp.MustCompile(`((?:    )*)--- (PASS|FAIL|SKIP): ([^ ]+) \((\d+\.\d+)(?: seconds|s)\)`)
 	regexStatus       = regexp.MustCompile(`^(PASS|FAIL|SKIP)$`)

parser/gotest/gotest_test.go

@@ -147,6 +147,10 @@ var parseLineTests = []parseLineTest{
 		"coverage: 99.8% of statements in fmt, encoding/xml",
 		[]Event{{Type: "coverage", CovPct: 99.8, CovPackages: []string{"fmt", "encoding/xml"}}},
 	},
+	{
+		"   package/name    coverage: 13.37% of statements",
+		[]Event{{Type: "coverage", CovPct: 13.37}},
+	},
 	{
 		"BenchmarkOK",
 		[]Event{{Type: "run_benchmark", Name: "BenchmarkOK"}},