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Contains generic Map and Set types. Golang 1.18 added new support for generics, but has not yet added a standard library that provides generic containers. In future versions of Golang, there will almost certainly be similar implementations of these types. Until then, use these to simplify some code. 100% test coverage. Bug: dawn:1342 Change-Id: I2a5c7bfb26f15c2099037d3fa0f0576df641d9f6 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/85220 Auto-Submit: Ben Clayton <bclayton@google.com> Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
115 lines
3.0 KiB
Go
115 lines
3.0 KiB
Go
// Copyright 2022 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package container_test
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import (
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"testing"
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"dawn.googlesource.com/dawn/tools/src/container"
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)
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func TestNewMap(t *testing.T) {
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m := container.NewMap[string, int]()
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expectEq(t, "len(m)", len(m), 0)
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}
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func TestMapAdd(t *testing.T) {
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m := container.NewMap[string, int]()
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m.Add("c", 3)
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expectEq(t, "len(m)", len(m), 1)
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expectEq(t, `m["a"]`, m["a"], 0)
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expectEq(t, `m["b"]`, m["b"], 0)
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expectEq(t, `m["c"]`, m["c"], 3)
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m.Add("a", 1)
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expectEq(t, "len(m)", len(m), 2)
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expectEq(t, `m["a"]`, m["a"], 1)
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expectEq(t, `m["b"]`, m["b"], 0)
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expectEq(t, `m["c"]`, m["c"], 3)
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m.Add("b", 2)
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expectEq(t, "len(m)", len(m), 3)
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expectEq(t, `m["a"]`, m["a"], 1)
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expectEq(t, `m["b"]`, m["b"], 2)
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expectEq(t, `m["c"]`, m["c"], 3)
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}
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func TestMapRemove(t *testing.T) {
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m := container.NewMap[string, int]()
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m.Add("a", 1)
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m.Add("b", 2)
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m.Add("c", 3)
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m.Remove("c")
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expectEq(t, "len(m)", len(m), 2)
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expectEq(t, `m["a"]`, m["a"], 1)
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expectEq(t, `m["b"]`, m["b"], 2)
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expectEq(t, `m["c"]`, m["c"], 0)
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m.Remove("a")
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expectEq(t, "len(m)", len(m), 1)
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expectEq(t, `m["a"]`, m["a"], 0)
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expectEq(t, `m["b"]`, m["b"], 2)
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expectEq(t, `m["c"]`, m["c"], 0)
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m.Remove("b")
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expectEq(t, "len(m)", len(m), 0)
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expectEq(t, `m["a"]`, m["a"], 0)
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expectEq(t, `m["b"]`, m["b"], 0)
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expectEq(t, `m["c"]`, m["c"], 0)
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}
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func TestMapContains(t *testing.T) {
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m := container.NewMap[string, int]()
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m.Add("c", 3)
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expectEq(t, `m.Contains("a")`, m.Contains("a"), false)
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expectEq(t, `m.Contains("b")`, m.Contains("b"), false)
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expectEq(t, `m.Contains("c")`, m.Contains("c"), true)
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m.Add("a", 1)
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expectEq(t, `m.Contains("a")`, m.Contains("a"), true)
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expectEq(t, `m.Contains("b")`, m.Contains("b"), false)
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expectEq(t, `m.Contains("c")`, m.Contains("c"), true)
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m.Add("b", 2)
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expectEq(t, `m.Contains("a")`, m.Contains("a"), true)
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expectEq(t, `m.Contains("b")`, m.Contains("b"), true)
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expectEq(t, `m.Contains("c")`, m.Contains("c"), true)
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}
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func TestMapKeys(t *testing.T) {
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m := container.NewMap[string, int]()
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m.Add("c", 3)
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expectEq(t, `m.Keys()`, m.Keys(), []string{"c"})
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m.Add("a", 1)
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expectEq(t, `m.Keys()`, m.Keys(), []string{"a", "c"})
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m.Add("b", 2)
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expectEq(t, `m.Keys()`, m.Keys(), []string{"a", "b", "c"})
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}
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func TestMapValues(t *testing.T) {
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m := container.NewMap[string, int]()
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m.Add("c", 1)
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expectEq(t, `m.Values()`, m.Values(), []int{1})
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m.Add("a", 2)
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expectEq(t, `m.Values()`, m.Values(), []int{2, 1})
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m.Add("b", 3)
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expectEq(t, `m.Values()`, m.Values(), []int{2, 3, 1})
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}
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