t/op/each_array.t: Provide descriptions for all tests.

diff --git a/t/op/each_array.t b/t/op/each_array.t
index 0c1e080..1055d6c 100644 (file)
--- a/t/op/each_array.t
+++ b/t/op/each_array.t
@@ -14,89 +14,102 @@ plan tests => 63;
 @array = qw(crunch zam bloop);
 
 (@r) = each @array;
-is (scalar @r, 2);
-is ($r[0], 0);
-is ($r[1], 'crunch');
+is (scalar @r, 2, "'each' on array returns index and value of next element");
+is ($r[0], 0, "got expected index");
+is ($r[1], 'crunch', "got expected value");
 ($k, $v) = each @array;
-is ($k, 1);
-is ($v, 'zam');
+is ($k, 1, "got expected index of next element");
+is ($v, 'zam', "got expected value of next element");
 ($k, $v) = each @array;
-is ($k, 2);
-is ($v, 'bloop');
+is ($k, 2, "got expected index of remaining element");
+is ($v, 'bloop', "got expected value of remaining element");
 (@r) = each @array;
-is (scalar @r, 0);
+is (scalar @r, 0,
+    "no elements remaining to be iterated over in original array");
 
 (@r) = each @array;
-is (scalar @r, 2);
-is ($r[0], 0);
-is ($r[1], 'crunch');
+is (scalar @r, 2, "start second iteration over original array");
+is ($r[0], 0, "got expected index");
+is ($r[1], 'crunch', "got expected value");
 ($k) = each @array;
-is ($k, 1);
+is ($k, 1, "got index when only index was assigned to variable");
 
 my @lex_array = qw(PLOP SKLIZZORCH RATTLE);
 
 (@r) = each @lex_array;
-is (scalar @r, 2);
-is ($r[0], 0);
-is ($r[1], 'PLOP');
+is (scalar @r, 2, "'each' on array returns index and value of next element");
+is ($r[0], 0, "got expected index");
+is ($r[1], 'PLOP', "got expected value");
 ($k, $v) = each @lex_array;
-is ($k, 1);
-is ($v, 'SKLIZZORCH');
+is ($k, 1, "got expected index of next element");
+is ($v, 'SKLIZZORCH', "got expected value of next element");
 ($k) = each @lex_array;
-is ($k, 2);
+is ($k, 2, "got expected index of remaining element");
 (@r) = each @lex_array;
-is (scalar @r, 0);
+is (scalar @r, 0,
+    "no elements remaining to be iterated over in original array");
 
 my $ar = ['bacon'];
 
 (@r) = each @$ar;
-is (scalar @r, 2);
-is ($r[0], 0);
-is ($r[1], 'bacon');
+is (scalar @r, 2,
+    "'each' on array inside reference returns index and value of next element");
+is ($r[0], 0, "got expected index");
+is ($r[1], 'bacon', "got expected value of array element inside reference");
 
 (@r) = each @$ar;
-is (scalar @r, 0);
+is (scalar @r, 0,
+    "no elements remaining to be iterated over in array inside reference");
 
-is (each @$ar, 0);
-is (scalar each @$ar, undef);
+is (each @$ar, 0, "scalar context 'each' on array returns expected index");
+is (scalar each @$ar, undef,
+    "no elements remaining to be iterated over; array reference case");
 
 my @keys;
 @keys = keys @array;
-is ("@keys", "0 1 2");
+is ("@keys", "0 1 2",
+    "'keys' on array in list context returns list of indices");
 
 @keys = keys @lex_array;
-is ("@keys", "0 1 2");
+is ("@keys", "0 1 2",
+    "'keys' on another array in list context returns list of indices");
 
 ($k, $v) = each @array;
-is ($k, 0);
-is ($v, 'crunch');
+is ($k, 0, "got expected index");
+is ($v, 'crunch', "got expected value");
 
 @keys = keys @array;
-is ("@keys", "0 1 2");
+is ("@keys", "0 1 2",
+    "'keys' on array in list context returns list of indices");
 
 ($k, $v) = each @array;
-is ($k, 0);
-is ($v, 'crunch');
+is ($k, 0, "following 'keys', got expected index");
+is ($v, 'crunch', "following 'keys', got expected value");
 
 
 
 my @values;
 @values = values @array;
-is ("@values", "@array");
+is ("@values", "@array",
+    "'values' on array returns list of values");
 
 @values = values @lex_array;
-is ("@values", "@lex_array");
+is ("@values", "@lex_array",
+    "'values' on another array returns list of values");
 
 ($k, $v) = each @array;
-is ($k, 0);
-is ($v, 'crunch');
+is ($k, 0, "following 'values', got expected index");
+is ($v, 'crunch', "following 'values', got expected index");
 
 @values = values @array;
-is ("@values", "@array");
+is ("@values", "@array",
+    "following 'values' and 'each', 'values' continues to return expected list of values");
 
 ($k, $v) = each @array;
-is ($k, 0);
-is ($v, 'crunch');
+is ($k, 0,
+    "following 'values', 'each' and 'values', 'each' continues to return expected index");
+is ($v, 'crunch',
+    "following 'values', 'each' and 'values', 'each' continues to return expected value");
 
 # reset
 while (each @array) { }
@@ -104,8 +117,9 @@ while (each @array) { }
 # each(ARRAY) in the conditional loop
 $c = 0;
 while (($k, $v) = each @array) {
-    is ($k, $c);
-    is ($v, $array[$k]);
+    is ($k, $c, "'each' on array in loop returns expected index '$c'");
+    is ($v, $array[$k],
+        "'each' on array in loop returns expected value '$array[$k]'");
     $c++;
 }
 
@@ -116,15 +130,18 @@ $c = 0;
 $k = 0;
 $v = 0;
 while ($k = each @array) {
-    is ($k, $v);
+    is ($k, $v,
+        "'each' on array in scalar context in loop returns expected index '$v'");
     $v++;
 }
 
 # each(ARRAY) in the conditional loop
 $c = 0;
 for (; ($k, $v) = each @array ;) {
-    is ($k, $c);
-    is ($v, $array[$k]);
+    is ($k, $c,
+        "'each' on array in list context in loop returns expected index '$c'");
+    is ($v, $array[$k],
+        "'each' on array in list context in loop returns expected value '$array[$k]'");
     $c++;
 }
 
@@ -134,7 +151,8 @@ $c = 0;
 $k = 0;
 $v = 0;
 for (; $k = each(@array) ;) {
-    is ($k, $v);
+    is ($k, $v,
+        "'each' on array in scalar context in loop returns expected index '$v'");
     $v++;
 }
 
@@ -142,26 +160,30 @@ for (; $k = each(@array) ;) {
 {
     my @a = 'a' .. 'c';
     my ($i, $v) = each @a;
-    is ("$i-$v", '0-a');
+    is ("$i-$v", '0-a', "got expected index and value");
     @a = 'A' .. 'C';
     ($i, $v) = each @a;
-    is ("$i-$v", '0-A');
+    is ("$i-$v", '0-A',
+        "got expected new index and value after array gets new content");
 }
 
 # Check that the iterator is reset when localization ends
 {
     @array = 'a' .. 'c';
     my ($i, $v) = each @array;
-    is ("$i-$v", '0-a');
+    is ("$i-$v", '0-a', "got expected index and value");
     {
         local @array = 'A' .. 'C';
         my ($i, $v) = each @array;
-        is ("$i-$v", '0-A');
+        is ("$i-$v", '0-A',
+            "got expected new index and value after array is localized and gets new content");
         ($i, $v) = each @array;
-        is ("$i-$v", '1-B');
+        is ("$i-$v", '1-B',
+            "got expected next index and value after array is localized and gets new content");
     }
     ($i, $v) = each @array;
-    is ("$i-$v", '1-b');
+    is ("$i-$v", '1-b',
+         "got expected next index and value upon return to pre-localized array");
     # Explicit reset
     while (each @array) { }
 }