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// Copyright 2021 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package substr
import (
"strings"
"testing"
)
func TestFixSubstr(t *testing.T) {
type test struct {
body string
substr string
expect string
}
for _, test := range []test{
{
body: "abc_def_ghi_jkl_mno",
substr: "def_XXX_jkl",
expect: "def_ghi_jkl",
},
{
body: "abc\ndef\nghi\njkl\nmno",
substr: "def\nXXX\njkl",
expect: "def\nghi\njkl",
},
{
body: "aaaaa12345ccccc",
substr: "1x345",
expect: "12345",
},
{
body: "aaaaa12345ccccc",
substr: "12x45",
expect: "12345",
},
{
body: "aaaaa12345ccccc",
substr: "123x5",
expect: "12345",
},
{
body: "aaaaaaaaaaaaa",
substr: "bbbbbbbbbbbbb",
expect: "", // cannot produce a sensible diff
}, { ///////////////////////////////////////////////////////////////////
body: `Return{
{
ScalarInitializer[not set]{42u}
}
}
`,
substr: `Return{
{
ScalarInitializer[not set]{42}
}
}`,
expect: `Return{
{
ScalarInitializer[not set]{42u}
}
}`,
}, { ///////////////////////////////////////////////////////////////////
body: `VariableDeclStatement{
Variable{
x_1
function
__u32
}
}
Assignment{
Identifier[not set]{x_1}
ScalarInitializer[not set]{42u}
}
Assignment{
Identifier[not set]{x_1}
ScalarInitializer[not set]{0u}
}
Return{}
`,
substr: `Assignment{
Identifier[not set]{x_1}
ScalarInitializer[not set]{42}
}
Assignment{
Identifier[not set]{x_1}
ScalarInitializer[not set]{0}
}`,
expect: `Assignment{
Identifier[not set]{x_1}
ScalarInitializer[not set]{42u}
}
Assignment{
Identifier[not set]{x_1}
ScalarInitializer[not set]{0u}
}`,
}, { ///////////////////////////////////////////////////////////////////
body: `VariableDeclStatement{
Variable{
a
function
__bool
{
ScalarInitializer[not set]{true}
}
}
}
VariableDeclStatement{
Variable{
b
function
__bool
{
ScalarInitializer[not set]{false}
}
}
}
VariableDeclStatement{
Variable{
c
function
__i32
{
ScalarInitializer[not set]{-1}
}
}
}
VariableDeclStatement{
Variable{
d
function
__u32
{
ScalarInitializer[not set]{1u}
}
}
}
VariableDeclStatement{
Variable{
e
function
__f32
{
ScalarInitializer[not set]{1.500000}
}
}
}
`,
substr: `VariableDeclStatement{
Variable{
a
function
__bool
{
ScalarInitializer[not set]{true}
}
}
}
VariableDeclStatement{
Variable{
b
function
__bool
{
ScalarInitializer[not set]{false}
}
}
}
VariableDeclStatement{
Variable{
c
function
__i32
{
ScalarInitializer[not set]{-1}
}
}
}
VariableDeclStatement{
Variable{
d
function
__u32
{
ScalarInitializer[not set]{1}
}
}
}
VariableDeclStatement{
Variable{
e
function
__f32
{
ScalarInitializer[not set]{1.500000}
}
}
}
`,
expect: `VariableDeclStatement{
Variable{
a
function
__bool
{
ScalarInitializer[not set]{true}
}
}
}
VariableDeclStatement{
Variable{
b
function
__bool
{
ScalarInitializer[not set]{false}
}
}
}
VariableDeclStatement{
Variable{
c
function
__i32
{
ScalarInitializer[not set]{-1}
}
}
}
VariableDeclStatement{
Variable{
d
function
__u32
{
ScalarInitializer[not set]{1u}
}
}
}
VariableDeclStatement{
Variable{
e
function
__f32
{
ScalarInitializer[not set]{1.500000}
}
}
}
`,
},
} {
body := strings.ReplaceAll(test.body, "\n", "␤")
substr := strings.ReplaceAll(test.substr, "\n", "␤")
expect := strings.ReplaceAll(test.expect, "\n", `␤`)
got := strings.ReplaceAll(Fix(test.body, test.substr), "\n", "␤")
if got != expect {
t.Errorf("Test failure:\nbody: '%v'\nsubstr: '%v'\nexpect: '%v'\ngot: '%v'\n\n", body, substr, expect, got)
}
}
}