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// Copyright 2022 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package container_test
import (
"sync"
"testing"
"dawn.googlesource.com/dawn/tools/src/container"
)
func TestNewMap(t *testing.T) {
m := container.NewMap[string, int]()
expectEq(t, "len(m)", len(m), 0)
}
func TestMapAdd(t *testing.T) {
m := container.NewMap[string, int]()
m.Add("c", 3)
expectEq(t, "len(m)", len(m), 1)
expectEq(t, `m["a"]`, m["a"], 0)
expectEq(t, `m["b"]`, m["b"], 0)
expectEq(t, `m["c"]`, m["c"], 3)
m.Add("a", 1)
expectEq(t, "len(m)", len(m), 2)
expectEq(t, `m["a"]`, m["a"], 1)
expectEq(t, `m["b"]`, m["b"], 0)
expectEq(t, `m["c"]`, m["c"], 3)
m.Add("b", 2)
expectEq(t, "len(m)", len(m), 3)
expectEq(t, `m["a"]`, m["a"], 1)
expectEq(t, `m["b"]`, m["b"], 2)
expectEq(t, `m["c"]`, m["c"], 3)
}
func TestMapRemove(t *testing.T) {
m := container.NewMap[string, int]()
m.Add("a", 1)
m.Add("b", 2)
m.Add("c", 3)
m.Remove("c")
expectEq(t, "len(m)", len(m), 2)
expectEq(t, `m["a"]`, m["a"], 1)
expectEq(t, `m["b"]`, m["b"], 2)
expectEq(t, `m["c"]`, m["c"], 0)
m.Remove("a")
expectEq(t, "len(m)", len(m), 1)
expectEq(t, `m["a"]`, m["a"], 0)
expectEq(t, `m["b"]`, m["b"], 2)
expectEq(t, `m["c"]`, m["c"], 0)
m.Remove("b")
expectEq(t, "len(m)", len(m), 0)
expectEq(t, `m["a"]`, m["a"], 0)
expectEq(t, `m["b"]`, m["b"], 0)
expectEq(t, `m["c"]`, m["c"], 0)
}
func TestMapContains(t *testing.T) {
m := container.NewMap[string, int]()
m.Add("c", 3)
expectEq(t, `m.Contains("a")`, m.Contains("a"), false)
expectEq(t, `m.Contains("b")`, m.Contains("b"), false)
expectEq(t, `m.Contains("c")`, m.Contains("c"), true)
m.Add("a", 1)
expectEq(t, `m.Contains("a")`, m.Contains("a"), true)
expectEq(t, `m.Contains("b")`, m.Contains("b"), false)
expectEq(t, `m.Contains("c")`, m.Contains("c"), true)
m.Add("b", 2)
expectEq(t, `m.Contains("a")`, m.Contains("a"), true)
expectEq(t, `m.Contains("b")`, m.Contains("b"), true)
expectEq(t, `m.Contains("c")`, m.Contains("c"), true)
}
func TestMapKeys(t *testing.T) {
m := container.NewMap[string, int]()
m.Add("c", 3)
expectEq(t, `m.Keys()`, m.Keys(), []string{"c"})
m.Add("a", 1)
expectEq(t, `m.Keys()`, m.Keys(), []string{"a", "c"})
m.Add("b", 2)
expectEq(t, `m.Keys()`, m.Keys(), []string{"a", "b", "c"})
}
func TestMapValues(t *testing.T) {
m := container.NewMap[string, int]()
m.Add("c", 1)
expectEq(t, `m.Values()`, m.Values(), []int{1})
m.Add("a", 2)
expectEq(t, `m.Values()`, m.Values(), []int{2, 1})
m.Add("b", 3)
expectEq(t, `m.Values()`, m.Values(), []int{2, 3, 1})
}
func TestMapGetOrCreate(t *testing.T) {
m := container.NewMap[string, int]()
A := m.GetOrCreate("1", func() int { return 1 })
expectEq(t, "A", A, 1)
B := m.GetOrCreate("2", func() int { return 2 })
expectEq(t, "B", B, 2)
C := m.GetOrCreate("1", func() int { t.Error("should not be called"); return 0 })
expectEq(t, "C", C, 1)
D := m.GetOrCreate("2", func() int { t.Error("should not be called"); return 0 })
expectEq(t, "D", D, 2)
}
func TestMapGetOrCreateLocked(t *testing.T) {
m := container.NewMap[string, int]()
mtx := &sync.RWMutex{}
wg := sync.WaitGroup{}
wg.Add(100)
for i := 0; i < 100; i++ {
go func() {
defer wg.Done()
A := m.GetOrCreateLocked(mtx, "1", func() int { return 1 })
expectEq(t, "A", A, 1)
B := m.GetOrCreateLocked(mtx, "2", func() int { return 2 })
expectEq(t, "B", B, 2)
C := m.GetOrCreateLocked(mtx, "1", func() int { t.Error("should not be called"); return 0 })
expectEq(t, "C", C, 1)
D := m.GetOrCreateLocked(mtx, "2", func() int { t.Error("should not be called"); return 0 })
expectEq(t, "D", D, 2)
}()
}
wg.Wait()
}