mirror of
https://github.com/dolthub/dolt.git
synced 2026-04-21 19:39:04 -05:00
Aaron Son
119 lines
2.9 KiB
Go
119 lines
2.9 KiB
Go
// Copyright 2019 Dolthub, Inc.
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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 funcitr
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import (
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"reflect"
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"strconv"
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"strings"
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"testing"
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)
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func TestMapStrings(t *testing.T) {
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inputs := []string{"this", "THAT", "The", "oThEr"}
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outputs := MapStrings(inputs, strings.ToLower)
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if !reflect.DeepEqual(outputs, []string{"this", "that", "the", "other"}) {
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t.Error("Failed to map over strings")
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}
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}
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func TestMapSlice(t *testing.T) {
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inputs := []interface{}{2, 4, 6, 8}
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outputs := MapSlice(inputs, func(item interface{}) interface{} {
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n := item.(int)
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return strconv.FormatInt(int64(n), 10)
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})
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if !reflect.DeepEqual(outputs, []interface{}{"2", "4", "6", "8"}) {
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t.Error("Failed to map over strings")
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}
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}
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func TestFilterStrings(t *testing.T) {
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inputs := []string{"this", "THAT", "The", "oThEr"}
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outputs := FilterStrings(inputs, func(s string) bool { return !strings.Contains(s, "T") })
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if !reflect.DeepEqual(outputs, []string{"this"}) {
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t.Error("Failed to filter strings")
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}
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}
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func TestMapInts(t *testing.T) {
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inputs32 := []int{2, 4, 6, 8}
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inputs64 := []int64{2, 4, 6, 8}
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outputs32 := MapInts(inputs32, func(x int) int {
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return x * 2
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})
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outputs64 := MapInt64s(inputs64, func(x int64) int64 {
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return x * 2
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})
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if !reflect.DeepEqual(outputs32, []int{4, 8, 12, 16}) {
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t.Error("Failed to map over strings")
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}
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if !reflect.DeepEqual(outputs64, []int64{4, 8, 12, 16}) {
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t.Error("Failed to map over strings")
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}
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}
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func TestMapFloats(t *testing.T) {
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inputs32 := []float32{2, 4, 6, 8}
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inputs64 := []float64{2, 4, 6, 8}
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outputs32 := MapFloat32s(inputs32, func(x float32) float32 {
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return x * 2
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})
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outputs64 := MapFloat64s(inputs64, func(x float64) float64 {
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return x * 2
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})
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if !reflect.DeepEqual(outputs32, []float32{4, 8, 12, 16}) {
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t.Error("Failed to map over strings")
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}
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if !reflect.DeepEqual(outputs64, []float64{4, 8, 12, 16}) {
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t.Error("Failed to map over strings")
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}
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}
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func TestNilSlices(t *testing.T) {
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str := MapStrings(nil, func(s string) string {
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return ""
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})
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f32 := MapFloat32s(nil, func(f float32) float32 {
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return 0.0
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})
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f64 := MapFloat64s(nil, func(f float64) float64 {
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return 0.0
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})
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i := MapInts(nil, func(x int) int {
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return 0
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})
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i64 := MapInt64s(nil, func(i int64) int64 {
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return 0
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})
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sl := MapSlice(nil, func(item interface{}) interface{} {
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return nil
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})
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if str != nil || f32 != nil || f64 != nil || i != nil || i64 != nil || sl != nil {
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t.Error("bad mapping of nil input slice")
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}
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}
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