1 files changed, 127 insertions, 0 deletions
diff --git a/usth/ICT2.7/P4L3 White-Box Testing Subtitles/30 - Summary - lang_en_vs4.srt b/usth/ICT2.7/P4L3 White-Box Testing Subtitles/30 - Summary - lang_en_vs4.srt
new file mode 100644
index 0000000..264491d
--- /dev/null
+++ b/usth/ICT2.7/P4L3 White-Box Testing Subtitles/30 - Summary - lang_en_vs4.srt
@@ -0,0 +1,127 @@
+1
+00:00:00,190 --> 00:00:02,800
+Now let me conclude the lesson by summarizing a few important
+
+2
+00:00:02,800 --> 00:00:06,840
+aspects of white-box testing. The first important aspect is that white-box
+
+3
+00:00:06,840 --> 00:00:09,770
+testing works on a formal model. The code itself are models
+
+4
+00:00:09,770 --> 00:00:12,430
+derived from the code. So when we do white-box testing, we
+
+5
+00:00:12,430 --> 00:00:15,160
+don't need to make subjective decision, for example, on the level
+
+6
+00:00:15,160 --> 00:00:18,890
+of obstruction of our models. Normally, we simply represent what's there.
+
+7
+00:00:18,890 --> 00:00:22,010
+And so what we will obtain are objective, results and objective
+
+8
+00:00:22,010 --> 00:00:25,400
+measures. As I also said at the beginning, coverage criteria allows
+
+9
+00:00:25,400 --> 00:00:28,790
+us to compare different test suites, different sets of tests,
+
+10
+00:00:28,790 --> 00:00:31,780
+because I can measure the coverage achieved by one test suite
+
+11
+00:00:31,780 --> 00:00:34,280
+and by the other, and then decide which one to use
+
+12
+00:00:34,280 --> 00:00:37,400
+based on this measure. And again, remember, these measures aren't perfect,
+
+13
+00:00:37,400 --> 00:00:40,700
+but they at least give you an objective number, an objective
+
+14
+00:00:40,700 --> 00:00:44,470
+measure of the likely effectiveness of your tests. So even though
+
+15
+00:00:44,470 --> 00:00:48,130
+achieving 100% coverage does not mean that you identify all the
+
+16
+00:00:48,130 --> 00:00:50,710
+problems in the code for sure. If your level of coverage
+
+17
+00:00:50,710 --> 00:00:53,700
+is 10%, for example, for stemen coverage. That means that
+
+18
+00:00:53,700 --> 00:00:57,360
+you haven't exercised 90% of your code, and therefore the trouble
+
+19
+00:00:57,360 --> 00:01:00,565
+is in a piece of software that is inadequately tested
+
+20
+00:01:00,565 --> 00:01:03,600
+and likely to be of inadequate quality. We also saw that
+
+21
+00:01:03,600 --> 00:01:07,370
+there are two broad classes of coverage criteria, practical criteria
+
+22
+00:01:07,370 --> 00:01:10,430
+that we can actually use, and theoretical criteria that are interesting
+
+23
+00:01:10,430 --> 00:01:13,410
+from a conceptual standpoint, but that they are totally impractical.
+
+24
+00:01:13,410 --> 00:01:16,170
+They are too expensive to be used on real world software.
+
+25
+00:01:16,170 --> 00:01:18,350
+And finally, as we also said at the beginning,
+
+26
+00:01:18,350 --> 00:01:20,820
+one of the great things about white box testing and
+
+27
+00:01:20,820 --> 00:01:23,910
+coverage criteria, is that they are fully automatable. There are
+
+28
+00:01:23,910 --> 00:01:27,380
+tools that can take your code, instrument it automatically. And
+
+29
+00:01:27,380 --> 00:01:29,050
+when you run your test cases, they will tell
+
+30
+00:01:29,050 --> 00:01:31,330
+you, what is the level of coverage that you achieve
+
+31
+00:01:31,330 --> 00:01:34,410
+with your test at no cost for you. So there's
+
+32
+00:01:34,410 --> 00:01:36,763
+really no reason not to measure coverage of your code.