Re: tests for change #22539

[p5sagit/p5-mst-13.2.git] / ext / B / t / concise.t

diff --git a/ext/B/t/concise.t b/ext/B/t/concise.t
index 1a07d08..809b155 100644 (file)
--- a/ext/B/t/concise.t
+++ b/ext/B/t/concise.t
@@ -6,7 +6,7 @@ BEGIN {
     require './test.pl';
 }
 
-plan tests => 5;
+plan tests => 38;
 
 require_ok("B::Concise");
 
@@ -34,4 +34,134 @@ $out = runperl(
     stderr => 1,
 );
 
-like($out, qr/print/, "-exec option with //=");
+like($out, qr/print/, "'-exec' option output has print opcode");
+
+######## API tests v.60 
+
+use Config;    # used for perlio check
+B::Concise->import(qw(set_style set_style_standard add_callback 
+                     add_style walk_output));
+
+## walk_output argument checking
+
+# test that walk_output accepts a HANDLE arg
+foreach my $foo (\*STDOUT, \*STDERR) {
+    eval {  walk_output($foo) };
+    is ($@, '', "walk_output() accepts STD* " . ref $foo);
+}
+
+# test that walk_output rejects non-HANDLE args
+foreach my $foo (undef, 0, "string",[], {}) {
+    eval {  walk_output($foo) };
+    isnt ($@, '', "walk_output() rejects arg '$foo'");
+    $@=''; # clear the fail for next test
+}
+
+{   # any object that can print should be ok for walk_output
+    package Hugo;
+    sub new { my $foo = bless {} };
+    sub print { CORE::print @_ }
+}
+my $foo = new Hugo;    # suggested this API fix
+eval {  walk_output($foo) };
+is ($@, '', "walk_output() accepts obj that can print");
+
+# now test a ref to scalar
+eval {  walk_output(\my $junk) };
+is ($@, '', "walk_output() accepts ref-to-sprintf target");
+
+$junk = "non-empty";
+eval {  walk_output(\$junk) };
+is ($@, '', "walk_output() accepts ref-to-non-empty-scalar");
+
+## add_style
+my @stylespec;
+$@='';
+eval { add_style ('junk_B' => @stylespec) };
+like ($@, 'expecting 3 style-format args',
+    "add_style rejects insufficient args");
+
+@stylespec = (0,0,0); # right length, invalid values
+$@='';
+eval { add_style ('junk' => @stylespec) };
+is ($@, '', "add_style accepts: stylename => 3-arg-array");
+
+$@='';
+eval { add_style (junk => @stylespec) };
+like ($@, qr/style 'junk' already exists, choose a new name/,
+    "add_style correctly disallows re-adding same style-name" );
+
+# test new arg-checks on set_style
+$@='';
+eval { set_style (@stylespec) };
+is ($@, '', "set_style accepts 3 style-format args");
+
+@stylespec = (); # bad style
+
+eval { set_style (@stylespec) };
+like ($@, qr/expecting 3 style-format args/,
+    "set_style rejects bad style-format args");
+
+
+#### for content with doc'd options
+
+set_style_standard('concise');  # MUST CALL b4 output needed
+my $func = sub{ $a = $b+42 };
+
+@options = qw(
+    -basic -exec -tree -compact -loose -vt -ascii -main
+    -base10 -bigendian -littleendian
+    );
+foreach $opt (@options) {
+    walk_output(\my $out);
+    my $treegen = B::Concise::compile($opt, $func);
+    $treegen->();
+    #print "foo:$out\n";
+    isnt($out, '', "got output with option $opt");
+}
+
+## test output control via walk_output
+
+my $treegen = B::Concise::compile('-basic', $func); # reused
+
+{ # test output into a package global string (sprintf-ish)
+    our $thing;
+    walk_output(\$thing);
+    $treegen->();
+    ok($thing, "walk_output to our SCALAR, output seen");
+}
+
+{ # test output to GLOB, using perlio feature directly
+    skip 1, "no perlio on this build" unless $Config{useperlio};
+    open (my $fh, '>', \my $buf);
+    walk_output($fh);
+    $treegen->();
+    ok($buf, "walk_output to GLOB, output seen");
+}
+
+## Test B::Concise::compile error checking
+
+# call compile on non-CODE ref items
+foreach my $ref ([], {}) {
+    my $typ = ref $ref;
+    walk_output(\my $out);
+    eval { B::Concise::compile('-basic', $ref)->() };
+    like ($@, qr/^err: not a coderef: $typ/,
+         "compile detects $typ-ref where expecting subref");
+    # is($out,'', "no output when errd"); # announcement prints
+}
+
+# test against a bogus autovivified subref.
+# in debugger, it should look like:
+#  1  CODE(0x84840cc)
+#      -> &CODE(0x84840cc) in ???
+sub nosuchfunc;
+eval { B::Concise::compile('-basic', \&nosuchfunc)->() };
+like ($@, qr/^err: coderef has no START/,
+      "compile detects CODE-ref w/o actual code");
+
+foreach my $opt (qw( -concise -exec )) {
+    eval { B::Concise::compile($opt,'non_existent_function')->() };
+    like ($@, qr/unknown function \(main::non_existent_function\)/,
+         "'$opt' reports non-existent-function properly");
+}