github.com/terramate-io/tf@v0.0.0-20230830114523-fce866b4dfcd/logging/panic_test.go (about)

     1  // Copyright (c) HashiCorp, Inc.
     2  // SPDX-License-Identifier: MPL-2.0
     3  
     4  package logging
     5  
     6  import (
     7  	"fmt"
     8  	"strings"
     9  	"testing"
    10  )
    11  
    12  func TestPanicRecorder(t *testing.T) {
    13  	rec := panics.registerPlugin("test")
    14  
    15  	output := []string{
    16  		"panic: test",
    17  		"  stack info",
    18  	}
    19  
    20  	for _, line := range output {
    21  		rec(line)
    22  	}
    23  
    24  	expected := fmt.Sprintf(pluginPanicOutput, "test", strings.Join(output, "\n"))
    25  
    26  	res := PluginPanics()
    27  	if len(res) == 0 {
    28  		t.Fatal("no output")
    29  	}
    30  
    31  	if res[0] != expected {
    32  		t.Fatalf("expected: %q\ngot: %q", expected, res[0])
    33  	}
    34  }
    35  
    36  func TestPanicLimit(t *testing.T) {
    37  	rec := panics.registerPlugin("test")
    38  
    39  	rec("panic: test")
    40  
    41  	for i := 0; i < 200; i++ {
    42  		rec(fmt.Sprintf("LINE: %d", i))
    43  	}
    44  
    45  	res := PluginPanics()
    46  	// take the extra content into account
    47  	max := strings.Count(pluginPanicOutput, "\n") + panics.maxLines
    48  	for _, out := range res {
    49  		found := strings.Count(out, "\n")
    50  		if found > max {
    51  			t.Fatalf("expected no more than %d lines, got: %d", max, found)
    52  		}
    53  	}
    54  }