github.com/cornelk/go-cloud@v0.17.1/docstore/driver/util_test.go (about)

     1  // Copyright 2019 The Go Cloud Development Kit Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     https://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package driver
    16  
    17  import (
    18  	"fmt"
    19  	"testing"
    20  
    21  	"github.com/google/go-cmp/cmp"
    22  	"github.com/google/go-cmp/cmp/cmpopts"
    23  )
    24  
    25  func TestSplitActions(t *testing.T) {
    26  	in := []*Action{
    27  		{Kind: Get},
    28  		{Kind: Get},
    29  		{Kind: Put},
    30  		{Kind: Update},
    31  		{Kind: Get},
    32  		{Kind: Create},
    33  	}
    34  
    35  	for _, test := range []struct {
    36  		desc  string
    37  		split func(a, b *Action) bool
    38  		want  [][]*Action
    39  	}{
    40  		{
    41  			"always false",
    42  			func(a, b *Action) bool { return false },
    43  			[][]*Action{in},
    44  		},
    45  		{
    46  			"always true",
    47  			func(a, b *Action) bool { return true },
    48  			[][]*Action{
    49  				{{Kind: Get}},
    50  				{{Kind: Get}},
    51  				{{Kind: Put}},
    52  				{{Kind: Update}},
    53  				{{Kind: Get}},
    54  				{{Kind: Create}},
    55  			},
    56  		},
    57  		{
    58  			"Get vs. other",
    59  			func(a, b *Action) bool { return (a.Kind == Get) != (b.Kind == Get) },
    60  			[][]*Action{
    61  				{{Kind: Get}, {Kind: Get}},
    62  				{{Kind: Put}, {Kind: Update}},
    63  				{{Kind: Get}},
    64  				{{Kind: Create}},
    65  			},
    66  		},
    67  	} {
    68  		got := SplitActions(in, test.split)
    69  		if diff := cmp.Diff(got, test.want, cmpopts.IgnoreFields(Action{}, "Doc")); diff != "" {
    70  			t.Errorf("%s: %s", test.desc, diff)
    71  		}
    72  	}
    73  }
    74  
    75  func TestGroupActions(t *testing.T) {
    76  	for _, test := range []struct {
    77  		in   []*Action
    78  		want [][]int // in the same order as the return args
    79  	}{
    80  		{
    81  			in:   []*Action{{Kind: Get, Key: 1}},
    82  			want: [][]int{nil, {0}, nil, nil},
    83  		},
    84  		{
    85  			in: []*Action{
    86  				{Kind: Get, Key: 1},
    87  				{Kind: Get, Key: 3},
    88  				{Kind: Put, Key: 1},
    89  				{Kind: Replace, Key: 2},
    90  				{Kind: Get, Key: 2},
    91  			},
    92  			want: [][]int{{0}, {1}, {2, 3}, {4}},
    93  		},
    94  	} {
    95  		got := make([][]*Action, 4)
    96  		got[0], got[1], got[2], got[3] = GroupActions(test.in)
    97  		want := make([][]*Action, 4)
    98  		for i, s := range test.want {
    99  			for _, x := range s {
   100  				want[i] = append(want[i], test.in[x])
   101  			}
   102  		}
   103  		diff := cmp.Diff(got, want,
   104  			cmpopts.IgnoreUnexported(Document{}),
   105  			cmpopts.SortSlices(func(a1, a2 *Action) bool {
   106  				if a1.Kind != a2.Kind {
   107  					return a1.Kind < a2.Kind
   108  				}
   109  				return a1.Key.(int) < a2.Key.(int)
   110  			}))
   111  		if diff != "" {
   112  
   113  			t.Errorf("%v: %s", test.in, diff)
   114  		}
   115  	}
   116  }
   117  
   118  func (a *Action) String() string { // for TestGroupActions
   119  	return fmt.Sprintf("<%s %v>", a.Kind, a.Key)
   120  }
   121  
   122  func TestAsFunc(t *testing.T) {
   123  	x := 1
   124  	as := AsFunc(x)
   125  
   126  	var y int
   127  	if !as(&y) || y != 1 {
   128  		t.Errorf("*int: returned false or wrong value %d", y)
   129  	}
   130  
   131  	var z float64
   132  	for _, arg := range []interface{}{nil, y, &z} {
   133  		if as(arg) {
   134  			t.Errorf("%#v: got true, want false", arg)
   135  		}
   136  	}
   137  }
   138  
   139  func TestGroupByFieldPath(t *testing.T) {
   140  	for i, test := range []struct {
   141  		in   []*Action
   142  		want [][]int // indexes into test.in
   143  	}{
   144  		{
   145  			in:   []*Action{{Index: 0}, {Index: 1}, {Index: 2}},
   146  			want: [][]int{{0, 1, 2}},
   147  		},
   148  		{
   149  			in:   []*Action{{Index: 0}, {Index: 1, FieldPaths: [][]string{{"a"}}}, {Index: 2}},
   150  			want: [][]int{{0, 2}, {1}},
   151  		},
   152  		{
   153  			in: []*Action{
   154  				{Index: 0, FieldPaths: [][]string{{"a", "b"}}},
   155  				{Index: 1, FieldPaths: [][]string{{"a"}}},
   156  				{Index: 2},
   157  				{Index: 3, FieldPaths: [][]string{{"a"}, {"b"}}},
   158  			},
   159  			want: [][]int{{0}, {1}, {2}, {3}},
   160  		},
   161  	} {
   162  		got := GroupByFieldPath(test.in)
   163  		want := make([][]*Action, len(test.want))
   164  		for i, s := range test.want {
   165  			want[i] = make([]*Action, len(s))
   166  			for j, x := range s {
   167  				want[i][j] = test.in[x]
   168  			}
   169  		}
   170  		if diff := cmp.Diff(got, want, cmpopts.IgnoreUnexported(Document{})); diff != "" {
   171  			t.Errorf("#%d: %s", i, diff)
   172  		}
   173  	}
   174  }