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      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "base/memory/scoped_vector.h"
      6 #include "base/strings/string16.h"
      7 #include "base/strings/utf_string_conversions.h"
      8 #include "components/autofill/core/browser/autofill_field.h"
      9 #include "components/autofill/core/browser/form_field.h"
     10 #include "testing/gtest/include/gtest/gtest.h"
     11 
     12 namespace autofill {
     13 
     14 TEST(FormFieldTest, Match) {
     15   AutofillField field;
     16 
     17   // Empty strings match.
     18   EXPECT_TRUE(FormField::Match(&field, base::string16(),
     19                                FormField::MATCH_LABEL));
     20 
     21   // Empty pattern matches non-empty string.
     22   field.label = ASCIIToUTF16("a");
     23   EXPECT_TRUE(FormField::Match(&field, base::string16(),
     24                                FormField::MATCH_LABEL));
     25 
     26   // Strictly empty pattern matches empty string.
     27   field.label = base::string16();
     28   EXPECT_TRUE(FormField::Match(&field, ASCIIToUTF16("^$"),
     29               FormField::MATCH_LABEL));
     30 
     31   // Strictly empty pattern does not match non-empty string.
     32   field.label = ASCIIToUTF16("a");
     33   EXPECT_FALSE(FormField::Match(&field, ASCIIToUTF16("^$"),
     34                FormField::MATCH_LABEL));
     35 
     36   // Non-empty pattern doesn't match empty string.
     37   field.label = base::string16();
     38   EXPECT_FALSE(FormField::Match(&field, ASCIIToUTF16("a"),
     39                FormField::MATCH_LABEL));
     40 
     41   // Beginning of line.
     42   field.label = ASCIIToUTF16("head_tail");
     43   EXPECT_TRUE(FormField::Match(&field, ASCIIToUTF16("^head"),
     44               FormField::MATCH_LABEL));
     45   EXPECT_FALSE(FormField::Match(&field, ASCIIToUTF16("^tail"),
     46                FormField::MATCH_LABEL));
     47 
     48   // End of line.
     49   field.label = ASCIIToUTF16("head_tail");
     50   EXPECT_FALSE(FormField::Match(&field, ASCIIToUTF16("head$"),
     51                FormField::MATCH_LABEL));
     52   EXPECT_TRUE(FormField::Match(&field, ASCIIToUTF16("tail$"),
     53               FormField::MATCH_LABEL));
     54 
     55   // Exact.
     56   field.label = ASCIIToUTF16("head_tail");
     57   EXPECT_FALSE(FormField::Match(&field, ASCIIToUTF16("^head$"),
     58                FormField::MATCH_LABEL));
     59   EXPECT_FALSE(FormField::Match(&field, ASCIIToUTF16("^tail$"),
     60                FormField::MATCH_LABEL));
     61   EXPECT_TRUE(FormField::Match(&field, ASCIIToUTF16("^head_tail$"),
     62               FormField::MATCH_LABEL));
     63 
     64   // Escaped dots.
     65   field.label = ASCIIToUTF16("m.i.");
     66   // Note: This pattern is misleading as the "." characters are wild cards.
     67   EXPECT_TRUE(FormField::Match(&field, ASCIIToUTF16("m.i."),
     68               FormField::MATCH_LABEL));
     69   EXPECT_TRUE(FormField::Match(&field, ASCIIToUTF16("m\\.i\\."),
     70               FormField::MATCH_LABEL));
     71   field.label = ASCIIToUTF16("mXiX");
     72   EXPECT_TRUE(FormField::Match(&field, ASCIIToUTF16("m.i."),
     73               FormField::MATCH_LABEL));
     74   EXPECT_FALSE(FormField::Match(&field, ASCIIToUTF16("m\\.i\\."),
     75                FormField::MATCH_LABEL));
     76 
     77   // Repetition.
     78   field.label = ASCIIToUTF16("headtail");
     79   EXPECT_TRUE(FormField::Match(&field, ASCIIToUTF16("head.*tail"),
     80               FormField::MATCH_LABEL));
     81   field.label = ASCIIToUTF16("headXtail");
     82   EXPECT_TRUE(FormField::Match(&field, ASCIIToUTF16("head.*tail"),
     83               FormField::MATCH_LABEL));
     84   field.label = ASCIIToUTF16("headXXXtail");
     85   EXPECT_TRUE(FormField::Match(&field, ASCIIToUTF16("head.*tail"),
     86               FormField::MATCH_LABEL));
     87   field.label = ASCIIToUTF16("headtail");
     88   EXPECT_FALSE(FormField::Match(&field, ASCIIToUTF16("head.+tail"),
     89                FormField::MATCH_LABEL));
     90   field.label = ASCIIToUTF16("headXtail");
     91   EXPECT_TRUE(FormField::Match(&field, ASCIIToUTF16("head.+tail"),
     92               FormField::MATCH_LABEL));
     93   field.label = ASCIIToUTF16("headXXXtail");
     94   EXPECT_TRUE(FormField::Match(&field, ASCIIToUTF16("head.+tail"),
     95               FormField::MATCH_LABEL));
     96 
     97   // Alternation.
     98   field.label = ASCIIToUTF16("head_tail");
     99   EXPECT_TRUE(FormField::Match(&field, ASCIIToUTF16("head|other"),
    100               FormField::MATCH_LABEL));
    101   EXPECT_TRUE(FormField::Match(&field, ASCIIToUTF16("tail|other"),
    102               FormField::MATCH_LABEL));
    103   EXPECT_FALSE(FormField::Match(&field, ASCIIToUTF16("bad|good"),
    104                FormField::MATCH_LABEL));
    105 
    106   // Case sensitivity.
    107   field.label = ASCIIToUTF16("xxxHeAd_tAiLxxx");
    108   EXPECT_TRUE(FormField::Match(&field, ASCIIToUTF16("head_tail"),
    109               FormField::MATCH_LABEL));
    110 
    111   // Word boundaries.
    112   field.label = ASCIIToUTF16("contains word:");
    113   EXPECT_TRUE(FormField::Match(&field, ASCIIToUTF16("\\bword\\b"),
    114                                FormField::MATCH_LABEL));
    115   EXPECT_FALSE(FormField::Match(&field, ASCIIToUTF16("\\bcon\\b"),
    116                                 FormField::MATCH_LABEL));
    117   // Make sure the circumflex in 'crepe' is not treated as a word boundary.
    118   field.label = UTF8ToUTF16("cr" "\xC3\xAA" "pe");
    119   EXPECT_FALSE(FormField::Match(&field, ASCIIToUTF16("\\bcr\\b"),
    120                                 FormField::MATCH_LABEL));
    121 }
    122 
    123 // Test that we ignore checkable elements.
    124 TEST(FormFieldTest, ParseFormFields) {
    125   ScopedVector<AutofillField> fields;
    126   FormFieldData field_data;
    127   field_data.form_control_type = "text";
    128 
    129   field_data.label = ASCIIToUTF16("Address line1");
    130   fields.push_back(new AutofillField(field_data, field_data.label));
    131 
    132   field_data.is_checkable = true;
    133   field_data.label = ASCIIToUTF16("Is PO Box");
    134   fields.push_back(new AutofillField(field_data, field_data.label));
    135 
    136   // reset is_checkable to false.
    137   field_data.is_checkable = false;
    138   field_data.label = ASCIIToUTF16("Address line2");
    139   fields.push_back(new AutofillField(field_data, field_data.label));
    140 
    141   ServerFieldTypeMap field_type_map;
    142   FormField::ParseFormFields(fields.get(), &field_type_map);
    143   // Checkable element shouldn't interfere with inference of Address line2.
    144   EXPECT_EQ(2U, field_type_map.size());
    145 
    146   EXPECT_EQ(ADDRESS_HOME_LINE1,
    147             field_type_map.find(ASCIIToUTF16("Address line1"))->second);
    148   EXPECT_EQ(ADDRESS_HOME_LINE2,
    149             field_type_map.find(ASCIIToUTF16("Address line2"))->second);
    150 }
    151 
    152 }  // namespace autofill
    153