Question

现在一直想要这个问题...经常在我进行测试时会出现这样的错误：

bundle exec rspec spec/features/admin/2_email_maintenances_spec.rb:32 -b
Run options: include {:locations=>{"./spec/features/admin/2_email_maintenances_spec.rb"=>[32]}}

An error occurred in an after hook
  ActionView::Template::Error: wrong number of arguments (1 for 0)
  occurred at /Users/jamesdong/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.1/lib/active_record/attribute_methods.rb:45:in `__temp__079636b65707f53747162747'

F

Failures:

找出代码中ActionView::Template::Error来自何处的最佳方法是什么？使用完整的回溯（-b）运行规范并没有多大帮助，因为它调试了测试失败的原因，而不是我在代码中得到的错误。另外转到引用的文件没有帮助，因为像...我得到错误，我只是想知道在我的代码中调用该方法的位置。

Answer 1

RSpec-core可以过滤掉各个宝石：

# Filter lines from Rails gems in backtraces.
config.filter_rails_from_backtrace!

RSpec-rails提供了一个额外的选项来过滤掉所有＆＃34; rails＆＃34;宝石（ActiveRecord，ActionPack等）：

  CREATE TEMPORARY FUNCTION similariry(Name1 STRING, Name2 STRING)
  RETURNS FLOAT64
  LANGUAGE js AS """
    var _extend = function(dst) {
      var sources = Array.prototype.slice.call(arguments, 1);
      for (var i=0; i<sources.length; ++i) {
        var src = sources[i];
        for (var p in src) {
          if (src.hasOwnProperty(p)) dst[p] = src[p];
        }
      }
      return dst;
    };

    var Levenshtein = {
      /**
       * Calculate levenshtein distance of the two strings.
       *
       * @param str1 String the first string.
       * @param str2 String the second string.
       * @return Integer the levenshtein distance (0 and above).
       */
      get: function(str1, str2) {
        // base cases
        if (str1 === str2) return 0;
        if (str1.length === 0) return str2.length;
        if (str2.length === 0) return str1.length;

        // two rows
        var prevRow  = new Array(str2.length + 1),
            curCol, nextCol, i, j, tmp;

        // initialise previous row
        for (i=0; i<prevRow.length; ++i) {
          prevRow[i] = i;
        }

        // calculate current row distance from previous row
        for (i=0; i<str1.length; ++i) {
          nextCol = i + 1;

          for (j=0; j<str2.length; ++j) {
            curCol = nextCol;

            // substution
            nextCol = prevRow[j] + ( (str1.charAt(i) === str2.charAt(j)) ? 0 : 1 );
            // insertion
            tmp = curCol + 1;
            if (nextCol > tmp) {
              nextCol = tmp;
            }
            // deletion
            tmp = prevRow[j + 1] + 1;
            if (nextCol > tmp) {
              nextCol = tmp;
            }

            // copy current col value into previous (in preparation for next iteration)
            prevRow[j] = curCol;
          }

          // copy last col value into previous (in preparation for next iteration)
          prevRow[j] = nextCol;
        }

        return nextCol;
      }

    };

    var the_Name1;

    try {
      the_Name1 = decodeURI(Name1).toLowerCase();
    } catch (ex) {
      the_Name1 = Name1.toLowerCase();
    }

    try {
      the_Name2 = decodeURI(Name2).toLowerCase();
    } catch (ex) {
      the_Name2 = Name2.toLowerCase();
    }

    return 1 - Levenshtein.get(the_Name1, the_Name2) / the_Name1.length;

  """;

  WITH strings AS (
  SELECT NULL          string1, NULL        string2 UNION ALL
    SELECT 'test'       string1, NULL        string2 UNION ALL
    SELECT NULL          string1, 'test'        string2 UNION ALL
    SELECT 'CRATE'      string1, 'TRACE'        string2 UNION ALL
    SELECT 'MARTHA'     string1, 'MARHTA'     string2 UNION ALL
    SELECT 'DWAYNE'     string1, 'DUANE'        string2 UNION ALL
    SELECT 'DIXON'      string1, 'DICKSONX'   string2 UNION ALL
    SELECT 'Dunningham' string1, 'Cunningham' string2 UNION ALL
    SELECT 'Abroms'     string1, 'Abrams'     string2 UNION ALL
    SELECT 'Lampley'    string1, 'Campley'    string2 UNION ALL
    SELECT 'Jonathon'   string1, 'Jonathan'   string2 UNION ALL
    SELECT 'Jeraldine'  string1, 'Gerladine'  string2 UNION ALL
    SELECT 'test'       string1, 'blank'        string2 UNION ALL
    SELECT 'everybody'  string1, 'every'        string2 UNION ALL
    SELECT 'a'          string1, 'aaa'        string2 UNION ALL
    SELECT 'Géraldine'  string1, 'Gerladine'  string2 UNION ALL
    SELECT 'Jérôme'     string1, 'Jerome'     string2 UNION ALL
    SELECT 'ça'          string1, 'ca'        string2 UNION ALL
    SELECT 'Üwe'          string1, 'Uwe'        string2 
  )
  SELECT string1, string2, similariry(string1, string2) my_sim
  FROM   strings
  ORDER  BY my_sim DESC

如何调试Rspec中的某些错误

1 个答案: