First JavaScript testing implementation.

This is a plan for testing JS inside of pdf files under pdfium:

Communication of results will be done via app.alert(), rather than
console.println(), since the latter is not hooked up to any API
callbacks.

pdfium_test.cc is modified to be more careful about use of stdout/stderr,
so that only the app.alert() and the unsupported feature callback use
stdout.  Diffing stdout against ..._expected.txt files gives the result.

I added a /javascript directory to separate these from the embeddertest
resources.

The alert callback is backported from XFA.  This was an omission.

BUG=https://code.google.com/p/pdfium/issues/detail?id=62
R=jam@chromium.org, thestig@chromium.org

Review URL: https://codereview.chromium.org/872103003

3 files changed, 106 insertions, 0 deletions

diff --git a/testing/resources/javascript/app_alert.in b/testing/resources/javascript/app_alert.in
new file mode 100644
index 0000000000..42f970a402
--- /dev/null
+++ b/testing/resources/javascript/app_alert.in
@@ -0,0 +1,45 @@
+{{header}}
+{{object 1 0}} <<
+  /Type /Catalog
+  /Pages 2 0 R
+  /OpenAction 10 0 R
+>>
+endobj
+{{object 2 0}} <<
+  /Type /Pages
+  /Count 1
+  /Kids [
+    3 0 R
+  ]
+>>
+endobj
+% Page number 0.
+{{object 3 0}} <<
+  /Type /Page
+  /Parent 2 0 R
+  /Resources <<
+    /Font <</F1 15 0 R>>
+  >>
+  /Contents [21 0 R]
+  /MediaBox [0 0 612 792]
+>>
+% OpenAction action
+{{object 10 0}} <<
+  /Type /Action
+  /S /JavaScript
+  /JS 11 0 R
+>>
+endobj
+% JS program to exexute
+{{object 11 0}} <<
+>>
+stream
+app.alert("This test passes if alert() logs output under the test utiltiy.");
+endstream
+endobj
+{{xref}}
+trailer <<
+  /Root 1 0 R
+>>
+{{startxref}}
+%%EOF
diff --git a/testing/resources/javascript/app_alert.pdf b/testing/resources/javascript/app_alert.pdf
new file mode 100644
index 0000000000..091992cbd7
--- /dev/null
+++ b/testing/resources/javascript/app_alert.pdf
@@ -0,0 +1,60 @@
+%PDF-1.7
+% ò¤ô
+1 0 obj <<
+  /Type /Catalog
+  /Pages 2 0 R
+  /OpenAction 10 0 R
+>>
+endobj
+2 0 obj <<
+  /Type /Pages
+  /Count 1
+  /Kids [
+    3 0 R
+  ]
+>>
+endobj
+% Page number 0.
+3 0 obj <<
+  /Type /Page
+  /Parent 2 0 R
+  /Resources <<
+    /Font <</F1 15 0 R>>
+  >>
+  /Contents [21 0 R]
+  /MediaBox [0 0 612 792]
+>>
+% OpenAction action
+10 0 obj <<
+  /Type /Action
+  /S /JavaScript
+  /JS 11 0 R
+>>
+endobj
+% JS program to exexute
+11 0 obj <<
+>>
+stream
+app.alert("This test passes if alert() logs output under the test utiltiy.");
+endstream
+endobj
+xref
+0 12
+0000000000 65535 f 
+0000000015 00000 n 
+0000000089 00000 n 
+0000000177 00000 n 
+0000000000 65535 f 
+0000000000 65535 f 
+0000000000 65535 f 
+0000000000 65535 f 
+0000000000 65535 f 
+0000000000 65535 f 
+0000000334 00000 n 
+0000000426 00000 n 
+trailer <<
+  /Root 1 0 R
+>>
+startxref
+543
+%%EOF
diff --git a/testing/resources/javascript/app_alert_expected.txt b/testing/resources/javascript/app_alert_expected.txt
new file mode 100644
index 0000000000..ac46b62203
--- /dev/null
+++ b/testing/resources/javascript/app_alert_expected.txt
@@ -0,0 +1 @@
+Alert: This test passes if alert() logs output under the test utiltiy.