[#5] Add covertest.Cover structure
It has embedded testing.Cover to collect coverage in standard form and sync.Mutex to be thread-safe Signed-off-by: Ekaterina Lebedeva <ekaterina.lebedeva@yadro.com>
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8e45fee116
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1 changed files with 117 additions and 59 deletions
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@ -6,32 +6,36 @@ import (
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"strings"
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"sync"
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"testing"
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"time"
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"github.com/nspcc-dev/neo-go/pkg/compiler"
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"github.com/stretchr/testify/require"
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)
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var mu sync.Mutex
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type coverline struct {
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Doc string
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Opcode int
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StartLine int
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StartCol int
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EndLine int
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EndCol int
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Statements int
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IsCovered bool
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type Cover struct {
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sync.Mutex
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testing.Cover
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Opcodes map[string][]int
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}
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var cover = &Cover{}
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// MakeCoverage generates an output file with coverage info in correct format.
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func (c *ContractInvoker) MakeCoverage(t testing.TB, ctrdi *ContractWithDebugInfo, ctrPath string, fileName string) {
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docs := getDocuments(t, ctrdi.DebugInfo.Documents, ctrPath)
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cov := getSeqPoints(t, ctrdi.DebugInfo, docs)
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for _, iMethod := range c.Methods {
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countInstructions(cov, iMethod.Instructions)
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func (c *ContractInvoker) MakeCoverage(t testing.TB, ctrdi *ContractWithDebugInfo, substr string, fileName string) {
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cover.Lock()
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defer cover.Unlock()
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if cover.Opcodes == nil {
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cover.Opcodes = make(map[string][]int)
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cover.Blocks = make(map[string][]testing.CoverBlock)
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cover.Counters = make(map[string][]uint32)
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}
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printToFile(t, cov, fileName)
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docs := getDocuments(t, ctrdi.DebugInfo.Documents, substr)
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setBlocks(ctrdi.DebugInfo, docs)
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for _, iMethod := range c.Methods {
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countInstructions(ctrdi.DebugInfo.Documents, docs, iMethod.Instructions)
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}
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printToFile(t, fileName)
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}
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// getDocuments returns compiler.DebugInfo.Documents indexes which contain specific substring.
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@ -50,28 +54,30 @@ func getDocuments(t testing.TB, docs []string, substr string) []int {
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return res
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}
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// getSeqPoints accumulates sequence points from every method in compiler.DebugInfo.Methods which belong to specified documents.
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func getSeqPoints(t testing.TB, di *compiler.DebugInfo, docs []int) []coverline {
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res := make([]coverline, 0, 10)
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// setBlocks extracts sequence points for every specific document
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// from compiler.DebugInfo and stores them in testing.Cover format
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func setBlocks(di *compiler.DebugInfo, docs []int) {
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for _, method := range di.Methods {
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maxLine := method.Range.End
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for _, seqPoint := range method.SeqPoints {
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if isValidDocument(seqPoint.Document, docs) && seqPoint.Opcode < int(maxLine) {
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res = append(res, coverline{
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Doc: di.Documents[seqPoint.Document],
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Opcode: seqPoint.Opcode,
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StartLine: seqPoint.StartLine,
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StartCol: seqPoint.StartCol,
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EndLine: seqPoint.EndLine,
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EndCol: seqPoint.EndCol,
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Statements: 1,
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IsCovered: false,
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statements := seqPoint.EndLine - seqPoint.StartLine + 1
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docStr := di.Documents[seqPoint.Document]
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if isValidDocument(seqPoint.Document, docs) {
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cover.Blocks[docStr] = append(cover.Blocks[docStr], testing.CoverBlock{
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Line0: uint32(seqPoint.StartLine),
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Col0: uint16(seqPoint.StartCol),
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Line1: uint32(seqPoint.EndLine),
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Col1: uint16(seqPoint.EndCol),
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Stmts: uint16(statements),
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})
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cover.Opcodes[docStr] = append(cover.Opcodes[docStr], seqPoint.Opcode)
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}
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}
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}
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return res
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for doc, seqPoints := range cover.Blocks {
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if hasNoCounters(doc) {
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cover.Counters[doc] = make([]uint32, len(seqPoints))
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}
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}
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}
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// isValidDocument checks if document index exists in an array of document indexes.
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@ -84,44 +90,96 @@ func isValidDocument(iDocToCheck int, docs []int) bool {
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return false
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}
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// countInstructions finds for every instruction a corresponding sequence point and sets IsCovered flag to true.
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func countInstructions(cov []coverline, codes []InstrHash) {
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for i := range cov {
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for _, code := range codes {
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if code.Offset == cov[i].Opcode {
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cov[i].IsCovered = true
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func hasNoBlocks(doc string) bool {
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if _, exists := cover.Blocks[doc]; exists {
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return false
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}
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return true
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}
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func hasNoCounters(doc string) bool {
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if _, exists := cover.Counters[doc]; exists {
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return false
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}
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return true
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}
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// countInstructions finds for every instruction a corresponding sequence point and sets IsCovered flag to true.
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func countInstructions(diDocs []string, validDocs []int, instrs []InstrHash) {
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sValidDocs := getValidStrDocs(diDocs, validDocs)
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for doc, ops := range cover.Opcodes {
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if isValidStrDoc(doc, sValidDocs) {
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cover.Counters[doc] = getNewCounts(doc, ops, instrs)
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}
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}
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}
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// printToFile writes coverlines to file.
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func printToFile(t testing.TB, cov []coverline, name string) {
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mu.Lock()
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defer mu.Unlock()
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func getNewCounts(doc string, ops []int, instrs []InstrHash) []uint32 {
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counts := cover.Counters[doc]
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for _, instr := range instrs {
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for i, op := range ops {
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if instr.Offset == op {
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counts[i]++
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}
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}
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}
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return counts
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}
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f, err := os.OpenFile(name, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0600)
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func getValidStrDocs(diDocs []string, validDocs []int) []string {
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res := make([]string, len(validDocs))
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for i, iDoc := range validDocs {
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res[i] = diDocs[iDoc]
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}
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return res
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}
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func isValidStrDoc(docToCheck string, docs []string) bool {
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for _, doc := range docs {
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if doc == docToCheck {
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return true
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}
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}
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return false
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}
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// printToFile writes coverage info to file.
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func printToFile(t testing.TB, name string) {
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fileName := name
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if fileName == "" {
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// if no specific file name was provided, the output file
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// will have formatted timestamp with no spaces as its name
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fileName = fmt.Sprintf("%s.out", time.Now().Format(time.RFC3339Nano))
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}
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f, err := os.OpenFile(fileName, os.O_TRUNC|os.O_WRONLY|os.O_CREATE, 0600)
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require.NoError(t, err)
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defer f.Close()
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fi, err := os.Stat(name)
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require.NoError(t, err)
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firstToWrite := ""
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if fi.Size() == 0 {
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firstToWrite = "mode: set\n"
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}
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_, err = f.WriteString(firstToWrite)
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_, err = f.WriteString("mode: set\n")
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require.NoError(t, err)
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for _, info := range cov {
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covered := 0
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if info.IsCovered {
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covered++
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var count uint32
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for name, counts := range cover.Counters {
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blocks := cover.Blocks[name]
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for i := range counts {
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stmts := int64(blocks[i].Stmts)
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count = counts[i]
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// mode: set
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if count != 0 {
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count = 1
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}
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line := fmt.Sprintf("%s:%d.%d,%d.%d %d %d\n", info.Doc, info.StartLine, info.StartCol, info.EndLine, info.EndCol, info.Statements, covered)
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_, err = f.WriteString(line)
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if f != nil && stmts == 1 {
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_, err := fmt.Fprintf(f, "%s:%d.%d,%d.%d %d %d\n", name,
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blocks[i].Line0, blocks[i].Col0,
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blocks[i].Line1, blocks[i].Col1,
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stmts,
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count)
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require.NoError(t, err)
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}
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}
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}
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}
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