--- /dev/null
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package cover
+
+import (
+ "fmt"
+ "io/ioutil"
+ "os"
+ "reflect"
+ "testing"
+)
+
+func TestParseProfiles(t *testing.T) {
+ tests := []struct {
+ name string
+ input string
+ output []*Profile
+ expectErr bool
+ }{
+ {
+ name: "parsing an empty file produces empty output",
+ input: `mode: set`,
+ output: []*Profile{},
+ },
+ {
+ name: "simple valid file produces expected output",
+ input: `mode: set
+some/fancy/path:42.69,44.16 2 1`,
+ output: []*Profile{
+ {
+ FileName: "some/fancy/path",
+ Mode: "set",
+ Blocks: []ProfileBlock{
+ {
+ StartLine: 42, StartCol: 69,
+ EndLine: 44, EndCol: 16,
+ NumStmt: 2, Count: 1,
+ },
+ },
+ },
+ },
+ },
+ {
+ name: "file with syntax characters in path produces expected output",
+ input: `mode: set
+some fancy:path/some,file.go:42.69,44.16 2 1`,
+ output: []*Profile{
+ {
+ FileName: "some fancy:path/some,file.go",
+ Mode: "set",
+ Blocks: []ProfileBlock{
+ {
+ StartLine: 42, StartCol: 69,
+ EndLine: 44, EndCol: 16,
+ NumStmt: 2, Count: 1,
+ },
+ },
+ },
+ },
+ },
+ {
+ name: "file with multiple blocks in one file produces expected output",
+ input: `mode: set
+some/fancy/path:42.69,44.16 2 1
+some/fancy/path:44.16,46.3 1 0`,
+ output: []*Profile{
+ {
+ FileName: "some/fancy/path",
+ Mode: "set",
+ Blocks: []ProfileBlock{
+ {
+ StartLine: 42, StartCol: 69,
+ EndLine: 44, EndCol: 16,
+ NumStmt: 2, Count: 1,
+ },
+ {
+ StartLine: 44, StartCol: 16,
+ EndLine: 46, EndCol: 3,
+ NumStmt: 1, Count: 0,
+ },
+ },
+ },
+ },
+ },
+ {
+ name: "file with multiple files produces expected output",
+ input: `mode: set
+another/fancy/path:44.16,46.3 1 0
+some/fancy/path:42.69,44.16 2 1`,
+ output: []*Profile{
+ {
+ FileName: "another/fancy/path",
+ Mode: "set",
+ Blocks: []ProfileBlock{
+ {
+ StartLine: 44, StartCol: 16,
+ EndLine: 46, EndCol: 3,
+ NumStmt: 1, Count: 0,
+ },
+ },
+ },
+ {
+ FileName: "some/fancy/path",
+ Mode: "set",
+ Blocks: []ProfileBlock{
+ {
+ StartLine: 42, StartCol: 69,
+ EndLine: 44, EndCol: 16,
+ NumStmt: 2, Count: 1,
+ },
+ },
+ },
+ },
+ },
+ {
+ name: "intertwined files are merged correctly",
+ input: `mode: set
+some/fancy/path:42.69,44.16 2 1
+another/fancy/path:47.2,47.13 1 1
+some/fancy/path:44.16,46.3 1 0`,
+ output: []*Profile{
+ {
+ FileName: "another/fancy/path",
+ Mode: "set",
+ Blocks: []ProfileBlock{
+ {
+ StartLine: 47, StartCol: 2,
+ EndLine: 47, EndCol: 13,
+ NumStmt: 1, Count: 1,
+ },
+ },
+ },
+ {
+ FileName: "some/fancy/path",
+ Mode: "set",
+ Blocks: []ProfileBlock{
+ {
+ StartLine: 42, StartCol: 69,
+ EndLine: 44, EndCol: 16,
+ NumStmt: 2, Count: 1,
+ },
+ {
+ StartLine: 44, StartCol: 16,
+ EndLine: 46, EndCol: 3,
+ NumStmt: 1, Count: 0,
+ },
+ },
+ },
+ },
+ },
+ {
+ name: "duplicate blocks are merged correctly",
+ input: `mode: count
+some/fancy/path:42.69,44.16 2 4
+some/fancy/path:42.69,44.16 2 3`,
+ output: []*Profile{
+ {
+ FileName: "some/fancy/path",
+ Mode: "count",
+ Blocks: []ProfileBlock{
+ {
+ StartLine: 42, StartCol: 69,
+ EndLine: 44, EndCol: 16,
+ NumStmt: 2, Count: 7,
+ },
+ },
+ },
+ },
+ },
+ {
+ name: "an invalid mode line is an error",
+ input: `mode:count`,
+ expectErr: true,
+ },
+ {
+ name: "a missing field is an error",
+ input: `mode: count
+some/fancy/path:42.69,44.16 2`,
+ expectErr: true,
+ },
+ {
+ name: "a missing path field is an error",
+ input: `mode: count
+42.69,44.16 2 3`,
+ expectErr: true,
+ },
+ {
+ name: "a non-numeric count is an error",
+ input: `mode: count
+42.69,44.16 2 nope`,
+ expectErr: true,
+ },
+ {
+ name: "an empty path is an error",
+ input: `mode: count
+:42.69,44.16 2 3`,
+ expectErr: true,
+ },
+ {
+ name: "a negative count is an error",
+ input: `mode: count
+some/fancy/path:42.69,44.16 2 -1`,
+ expectErr: true,
+ },
+ }
+
+ for _, tc := range tests {
+ t.Run(tc.name, func(t *testing.T) {
+ f, err := ioutil.TempFile("", "")
+ if err != nil {
+ t.Fatalf("Failed to create a temp file: %v.", err)
+ }
+ defer func() {
+ f.Close()
+ os.Remove(f.Name())
+ }()
+ n, err := f.WriteString(tc.input)
+ if err != nil {
+ t.Fatalf("Failed to write to temp file: %v", err)
+ }
+ if n < len(tc.input) {
+ t.Fatalf("Didn't write enough bytes to temp file (wrote %d, expected %d).", n, len(tc.input))
+ }
+ if err := f.Sync(); err != nil {
+ t.Fatalf("Failed to sync temp file: %v", err)
+ }
+
+ result, err := ParseProfiles(f.Name())
+ if err != nil {
+ if !tc.expectErr {
+ t.Errorf("Unexpected error: %v", err)
+ }
+ return
+ }
+ if tc.expectErr {
+ t.Errorf("Expected an error, but got value %q", stringifyProfileArray(result))
+ }
+ if !reflect.DeepEqual(result, tc.output) {
+ t.Errorf("Mismatched results.\nExpected: %s\nActual: %s", stringifyProfileArray(tc.output), stringifyProfileArray(result))
+ }
+ })
+ }
+}
+
+func stringifyProfileArray(profiles []*Profile) string {
+ deref := make([]Profile, 0, len(profiles))
+ for _, p := range profiles {
+ deref = append(deref, *p)
+ }
+ return fmt.Sprintf("%#v", deref)
+}
+
+func BenchmarkParseLine(b *testing.B) {
+ const line = "k8s.io/kubernetes/cmd/kube-controller-manager/app/options/ttlafterfinishedcontroller.go:31.73,32.14 1 1"
+ b.SetBytes(int64(len(line)))
+ for n := 0; n < b.N; n++ {
+ parseLine(line)
+ }
+}
projects / dotfiles / .git / blobdiff