| // Copyright 2012 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 race_test |
| |
| import ( |
| "testing" |
| ) |
| |
| func TestRaceMapRW(t *testing.T) { |
| m := make(map[int]int) |
| ch := make(chan bool, 1) |
| go func() { |
| _ = m[1] |
| ch <- true |
| }() |
| m[1] = 1 |
| <-ch |
| } |
| |
| func TestRaceMapRW2(t *testing.T) { |
| m := make(map[int]int) |
| ch := make(chan bool, 1) |
| go func() { |
| _, _ = m[1] |
| ch <- true |
| }() |
| m[1] = 1 |
| <-ch |
| } |
| |
| func TestRaceMapRWArray(t *testing.T) { |
| // Check instrumentation of unaddressable arrays (issue 4578). |
| m := make(map[int][2]int) |
| ch := make(chan bool, 1) |
| go func() { |
| _ = m[1][1] |
| ch <- true |
| }() |
| m[2] = [2]int{1, 2} |
| <-ch |
| } |
| |
| func TestNoRaceMapRR(t *testing.T) { |
| m := make(map[int]int) |
| ch := make(chan bool, 1) |
| go func() { |
| _, _ = m[1] |
| ch <- true |
| }() |
| _ = m[1] |
| <-ch |
| } |
| |
| func TestRaceMapRange(t *testing.T) { |
| m := make(map[int]int) |
| ch := make(chan bool, 1) |
| go func() { |
| for _ = range m { |
| } |
| ch <- true |
| }() |
| m[1] = 1 |
| <-ch |
| } |
| |
| func TestRaceMapRange2(t *testing.T) { |
| m := make(map[int]int) |
| ch := make(chan bool, 1) |
| go func() { |
| for _ = range m { |
| } |
| ch <- true |
| }() |
| m[1] = 1 |
| <-ch |
| } |
| |
| func TestNoRaceMapRangeRange(t *testing.T) { |
| m := make(map[int]int) |
| // now the map is not empty and range triggers an event |
| // should work without this (as in other tests) |
| // so it is suspicious if this test passes and others don't |
| m[0] = 0 |
| ch := make(chan bool, 1) |
| go func() { |
| for _ = range m { |
| } |
| ch <- true |
| }() |
| for _ = range m { |
| } |
| <-ch |
| } |
| |
| func TestRaceMapLen(t *testing.T) { |
| m := make(map[string]bool) |
| ch := make(chan bool, 1) |
| go func() { |
| _ = len(m) |
| ch <- true |
| }() |
| m[""] = true |
| <-ch |
| } |
| |
| func TestRaceMapDelete(t *testing.T) { |
| m := make(map[string]bool) |
| ch := make(chan bool, 1) |
| go func() { |
| delete(m, "") |
| ch <- true |
| }() |
| m[""] = true |
| <-ch |
| } |
| |
| func TestRaceMapLenDelete(t *testing.T) { |
| m := make(map[string]bool) |
| ch := make(chan bool, 1) |
| go func() { |
| delete(m, "a") |
| ch <- true |
| }() |
| _ = len(m) |
| <-ch |
| } |
| |
| func TestRaceMapVariable(t *testing.T) { |
| ch := make(chan bool, 1) |
| m := make(map[int]int) |
| go func() { |
| m = make(map[int]int) |
| ch <- true |
| }() |
| m = make(map[int]int) |
| <-ch |
| } |
| |
| func TestRaceMapVariable2(t *testing.T) { |
| ch := make(chan bool, 1) |
| m := make(map[int]int) |
| go func() { |
| m[1] = 1 |
| ch <- true |
| }() |
| m = make(map[int]int) |
| <-ch |
| } |
| |
| func TestRaceMapVariable3(t *testing.T) { |
| ch := make(chan bool, 1) |
| m := make(map[int]int) |
| go func() { |
| _ = m[1] |
| ch <- true |
| }() |
| m = make(map[int]int) |
| <-ch |
| } |