t/test-lib test_equal: Expected may be glob pattern to match actual

This is done simply by using Bash `[[` instead of POSIX `[` test.

Also change the `==` comparison to `=`; Bash was accepting the former
but it's not POSIX.

Author: 0cjs

t/10-test-lib.t

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 . t/test-lib.sh
-echo '1..5'
+echo '1..6'
 
 
 ##### 1
@@ -44,3 +44,12 @@ end_test
 start_test 'test_equal failure'
 expect_fails test_equal 'abc' 'XYZ'
 end_test
+
+##### 6
+start_test 'test_equal glob'
+test_equal 'a*' 'abc'
+expect_fails test_equal 'abc' 'Abc'
+test_equal '[Aa]bc' 'Abc'
+test_equal '[Aa]bc' 'abc'
+expect_fails test_equal 'abc' '[Aa]bc'
+end_test

t/test-lib.sh

@@ -60,7 +60,7 @@ test_equal() {
         return
     }
 
-    [ "$expected" == "$actual" ] || {
+    [[ $actual = $expected ]] || {
         fail_test
         echo "# Expected: '$expected'"
         echo "#   Actual: '$actual'"