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      1 // Copyright 2017 Google Inc. All rights reserved.
      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 //     http://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 main
     16 
     17 import (
     18 	"bytes"
     19 	"io/ioutil"
     20 	"strconv"
     21 	"testing"
     22 )
     23 
     24 var testCases = []struct {
     25 	in, out string
     26 }{
     27 	{
     28 		in:  "File.java:40: error: cannot find symbol\n",
     29 		out: "\x1b[1mFile.java:40: \x1b[31merror:\x1b[0m\x1b[1m cannot find symbol\x1b[0m\n",
     30 	},
     31 	{
     32 		in:  "import static com.blah.SYMBOL;\n",
     33 		out: "import static com.blah.SYMBOL;\n",
     34 	},
     35 	{
     36 		in:  "          ^           \n",
     37 		out: "\x1b[1m          \x1b[32m^\x1b[0m\x1b[1m           \x1b[0m\n",
     38 	},
     39 	{
     40 		in:  "File.java:398: warning: [RectIntersectReturnValueIgnored] Return value of com.blah.function() must be checked\n",
     41 		out: "\x1b[1mFile.java:398: \x1b[35mwarning:\x1b[0m\x1b[1m [RectIntersectReturnValueIgnored] Return value of com.blah.function() must be checked\x1b[0m\n",
     42 	},
     43 	{
     44 		in:  "warning: [options] blah\n",
     45 		out: "\x1b[1m\x1b[35mwarning:\x1b[0m\x1b[1m [options] blah\x1b[0m\n",
     46 	},
     47 	{
     48 		in:  "    (see http://go/errorprone/bugpattern/RectIntersectReturnValueIgnored.md)\n",
     49 		out: "    (see http://go/errorprone/bugpattern/RectIntersectReturnValueIgnored.md)\n",
     50 	},
     51 	{
     52 		in: `
     53 Note: Some input files use or override a deprecated API.
     54 Note: Recompile with -Xlint:deprecation for details.
     55 Note: Some input files use unchecked or unsafe operations.
     56 Note: Recompile with -Xlint:unchecked for details.
     57 Note: dir/file.java uses or overrides a deprecated API.
     58 Note: dir/file.java uses unchecked or unsafe operations.
     59 warning: [options] bootstrap class path not set in conjunction with -source 1.7
     60 `,
     61 		out: "\n",
     62 	},
     63 	{
     64 		in:  "\n",
     65 		out: "\n",
     66 	},
     67 }
     68 
     69 func TestJavacColorize(t *testing.T) {
     70 	for i, test := range testCases {
     71 		t.Run(strconv.Itoa(i), func(t *testing.T) {
     72 			buf := new(bytes.Buffer)
     73 			err := process(bytes.NewReader([]byte(test.in)), buf)
     74 			if err != nil {
     75 				t.Errorf("error: %q", err)
     76 			}
     77 			got := string(buf.Bytes())
     78 			if got != test.out {
     79 				t.Errorf("expected %q got %q", test.out, got)
     80 			}
     81 		})
     82 	}
     83 }
     84 
     85 func TestSubprocess(t *testing.T) {
     86 	t.Run("failure", func(t *testing.T) {
     87 		exitCode, err := Main(ioutil.Discard, "test", []string{"sh", "-c", "exit 9"})
     88 		if err != nil {
     89 			t.Fatal("unexpected error", err)
     90 		}
     91 		if exitCode != 9 {
     92 			t.Fatal("expected exit code 9, got", exitCode)
     93 		}
     94 	})
     95 
     96 	t.Run("signal", func(t *testing.T) {
     97 		exitCode, err := Main(ioutil.Discard, "test", []string{"sh", "-c", "kill -9 $$"})
     98 		if err != nil {
     99 			t.Fatal("unexpected error", err)
    100 		}
    101 		if exitCode != 137 {
    102 			t.Fatal("expected exit code 137, got", exitCode)
    103 		}
    104 	})
    105 
    106 	t.Run("success", func(t *testing.T) {
    107 		exitCode, err := Main(ioutil.Discard, "test", []string{"echo"})
    108 		if err != nil {
    109 			t.Fatal("unexpected error", err)
    110 		}
    111 		if exitCode != 0 {
    112 			t.Fatal("expected exit code 0, got", exitCode)
    113 		}
    114 	})
    115 
    116 }
    117