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51 lines
1.4 KiB
51 lines
1.4 KiB
// Copyright 2017 clair 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 strutil
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestSubstring(t *testing.T) {
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for _, test := range [...]struct {
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in string
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start int
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end int
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out string
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}{
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{"", 0, 1, ""}, {"", 0, 0, ""}, {"", -1, -1, ""}, {"1", 1, 0, ""},
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{"1", 1, 1, ""}, {"1", 0, 1, "1"}, {"1", 0, 2, ""},
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} {
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require.Equal(t, test.out, Substring(test.in, test.start, test.end))
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}
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}
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func TestStringComparison(t *testing.T) {
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cmp := Difference([]string{"a", "b", "b", "a"}, []string{"a", "c"})
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assert.Len(t, cmp, 1)
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assert.NotContains(t, cmp, "a")
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assert.Contains(t, cmp, "b")
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cmp = Intersect([]string{"a", "a", "b", "c"}, []string{"a", "c", "c"})
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assert.Len(t, cmp, 2)
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assert.NotContains(t, cmp, "b")
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assert.Contains(t, cmp, "a")
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assert.Contains(t, cmp, "c")
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}
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