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+#
+# Copyright (c) 2016 D. Richard Hipp
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the Simplified BSD License (also
+# known as the "2-Clause License" or "FreeBSD License".)
+#
+# This program is distributed in the hope that it will be useful,
+# but without any warranty; without even the implied warranty of
+# merchantability or fitness for a particular purpose.
+#
+# Author contact information:
+#   drh@hwaci.com
+#   http://www.hwaci.com/drh/
+#
+############################################################################
+#
+# The "settings" and "unset" commands that may modify the repository.
+#
+
+set path [file dirname [info script]]
+
+require_no_open_checkout
+
+test_setup
+
+###############################################################################
+#
+# Complete syntax as tested:
+#
+#     fossil settings ?PROPERTY? ?VALUE? ?OPTIONS?
+#     fossil unset PROPERTY ?OPTIONS?
+#
+# Where the only supported options are "--global" and "--exact".
+#
+###############################################################################
+
+set all_settings [get_all_settings]
+
+foreach name $all_settings {
+  #
+  # HACK: Make 100% sure that there are no non-default setting values
+  #       present anywhere.
+  #
+  if {$name eq "manifest"} {
+    fossil unset $name --exact --global -expectError
+  } else {
+    fossil unset $name --exact --global
+  }
+  fossil unset $name --exact
+
+  #
+  # NOTE: Query for the hard-coded default value of this setting and
+  #       save it.
+  #
+  fossil test-th-eval "setting $name"
+  set defaults($name) [normalize_result]
+}
+
+###############################################################################
+
+fossil settings bad-setting some_value -expectError
+
+test settings-set-bad-local {
+  [normalize_result] eq "no such setting: bad-setting"
+}
+
+fossil settings bad-setting some_value --global -expectError
+
+test settings-set-bad-global {
+  [normalize_result] eq "no such setting: bad-setting"
+}
+
+###############################################################################
+
+fossil unset bad-setting -expectError
+
+test settings-unset-bad-local {
+  [normalize_result] eq "no such setting: bad-setting"
+}
+
+fossil unset bad-setting --global -expectError
+
+test settings-unset-bad-global {
+  [normalize_result] eq "no such setting: bad-setting"
+}
+
+###############################################################################
+
+fossil settings ssl some_value -expectError
+
+test settings-set-ambiguous-local {
+  [normalize_result] eq
+  "ambiguous setting \"ssl\" - might be: ssl-ca-location ssl-identity"
+}
+
+fossil settings ssl some_value --global -expectError
+
+test settings-set-ambiguous-global {
+  [normalize_result] eq
+  "ambiguous setting \"ssl\" - might be: ssl-ca-location ssl-identity"
+}
+
+###############################################################################
+
+fossil unset ssl -expectError
+
+test settings-unset-ambiguous-local {
+  [normalize_result] eq
+  "ambiguous setting \"ssl\" - might be: ssl-ca-location ssl-identity"
+}
+
+fossil unset ssl --global -expectError
+
+test settings-unset-ambiguous-global {
+  [normalize_result] eq
+  "ambiguous setting \"ssl\" - might be: ssl-ca-location ssl-identity"
+}
+
+###############################################################################
+
+set pattern(1) {^%name%$}
+set pattern(3) {^%name%[ ]+\(global\)[ ]+%value%+$}
+set pattern(4) {^%name%[ ]+\(local\)[ ]+%value%+$}
+
+foreach name $all_settings {
+  if {$name ne "manifest"} {
+    set value #global_for_$name
+    fossil settings $name $value --exact --global
+    set data [normalize_result]
+
+    test settings-set-$name-global {
+      $data eq ""
+    }
+
+    fossil settings $name --exact --global
+    set data [normalize_result]
+
+    test settings-set-check1-$name-global {
+      [regexp -- [string map \
+          [list %name% $name %value% $value] $pattern(3)] $data]
+    }
+
+    fossil test-th-eval --open-config "setting $name"
+    set data [normalize_result]
+
+    test settings-set-check2-$name-global {
+      $data eq $value
+    }
+
+    fossil unset $name --exact --global
+    set data [normalize_result]
+
+    test settings-unset-$name-global {
+      $data eq ""
+    }
+
+    fossil settings $name --exact --global
+    set data [normalize_result]
+
+    test settings-unset-check1-$name-global {
+      [regexp -- [string map \
+          [list %name% $name %value% $value] $pattern(1)] $data]
+    }
+
+    fossil test-th-eval --open-config "setting $name"
+    set data [normalize_result]
+
+    test settings-unset-check2-$name-global {
+      $data eq $defaults($name)
+    }
+  }
+
+  set value #local_for_$name
+  fossil settings $name $value --exact
+  set data [normalize_result]
+
+  test settings-set-$name-local {
+    $data eq ""
+  }
+
+  fossil settings $name --exact
+  set data [normalize_result]
+
+  test settings-set-check1-$name-local {
+    [regexp -- [string map \
+        [list %name% $name %value% $value] $pattern(4)] $data]
+  }
+
+  fossil test-th-eval --open-config "setting $name"
+  set data [normalize_result]
+
+  test settings-set-check2-$name-local {
+    $data eq $value
+  }
+
+  fossil unset $name --exact
+  set data [normalize_result]
+
+  test settings-unset-$name-local {
+    $data eq ""
+  }
+
+  fossil settings $name --exact
+  set data [normalize_result]
+
+  test settings-unset-check1-$name-local {
+    [regexp -- [string map \
+        [list %name% $name %value% $value] $pattern(1)] $data]
+  }
+
+  fossil test-th-eval --open-config "setting $name"
+  set data [normalize_result]
+
+  test settings-unset-check2-$name-local {
+    $data eq $defaults($name)
+  }
+}
+
+###############################################################################
+
+set pattern(5) \
+  {^%name%[ ]+\n  \(overridden by contents of file \.fossil-settings/%name%\)$}
+
+set versionable_settings [get_versionable_settings]
+file mkdir .fossil-settings
+
+foreach name $versionable_settings {
+  fossil settings $name --exact
+  set data [normalize_result]
+
+  test settings-before-versionable-$name {
+    [regexp -- [string map [list %name% $name] $pattern(1)] $data]
+  }
+
+  set value #versionable_for_$name
+  set fileName [file join .fossil-settings $name]
+  write_file $fileName $value
+
+  fossil settings $name --exact
+  set data [normalize_result]
+
+  test settings-set-check1-versionable-$name {
+    [regexp -- [string map [list %name% $name] $pattern(5)] $data]
+  }
+
+  fossil test-th-eval --open-config "setting $name"
+  set data [normalize_result]
+
+  test settings-set-check2-versionable-$name {
+    $data eq ""
+  }
+
+  file delete $fileName
+
+  fossil settings $name --exact
+  set data [normalize_result]
+
+  test settings-after-versionable-$name {
+    [regexp -- [string map [list %name% $name] $pattern(1)] $data]
+  }
+}
+
+###############################################################################
+
+test_cleanup