7 files changed, 366 insertions, 0 deletions
diff --git a/tests/variable/override/build/bootstrap.build b/tests/variable/override/build/bootstrap.build
new file mode 100644
index 0000000..1c2e239
--- /dev/null
+++ b/tests/variable/override/build/bootstrap.build
@@ -0,0 +1,2 @@
+project = override
+amalgamation = # Disabled.
diff --git a/tests/variable/override/buildfile b/tests/variable/override/buildfile
new file mode 100644
index 0000000..18c9831
--- /dev/null
+++ b/tests/variable/override/buildfile
@@ -0,0 +1,58 @@
+if ("$t" != "")
+{
+  [$t] v = [null]
+}
+
+print "/     :" $(/: v)
+
+if ($a == as)
+{
+  v = x
+}
+elif ($a == ap)
+{
+  v += s
+}
+elif ($a == pr)
+{
+  v =+ p
+}
+
+print ".     :" $v
+
+d/:
+{
+  if ($d_a == as)
+  {
+    v = x
+  }
+  elif ($d_a == ap)
+  {
+    v += s
+  }
+  elif ($d_a == pr)
+  {
+    v =+ p
+  }
+
+  print "d     :" $v
+
+
+  if ($d_t_a == as)
+  {
+    file{t}: v = x
+  }
+  elif ($d_t_a == ap)
+  {
+    file{t}: v += s
+  }
+  elif ($d_t_a == pr)
+  {
+    file{t}: v =+ p
+  }
+
+  print "d/t   :" $(file{t}: v)
+}
+
+include p/
+./:
diff --git a/tests/variable/override/cache b/tests/variable/override/cache
new file mode 100644
index 0000000..8378688
--- /dev/null
+++ b/tests/variable/override/cache
@@ -0,0 +1,13 @@
+x = [string] 0
+print $x
+
+x = [uint64] 1
+print $x
+
+y = 0
+print $y
+
+[uint64] y = [null]
+print $y
+
+./:
diff --git a/tests/variable/override/p/build/bootstrap.build b/tests/variable/override/p/build/bootstrap.build
new file mode 100644
index 0000000..723e2a3
--- /dev/null
+++ b/tests/variable/override/p/build/bootstrap.build
@@ -0,0 +1 @@
+project = override-p
diff --git a/tests/variable/override/p/buildfile b/tests/variable/override/p/buildfile
new file mode 100644
index 0000000..527b9ae
--- /dev/null
+++ b/tests/variable/override/p/buildfile
@@ -0,0 +1,49 @@
+if ($p_a == as)
+{
+  v = x
+}
+elif ($p_a == ap)
+{
+  v += s
+}
+elif ($p_a == pr)
+{
+  v =+ p
+}
+
+print "p     :" $v
+
+d/:
+{
+  if ($p_d_a == as)
+  {
+    v = x
+  }
+  elif ($p_d_a == ap)
+  {
+    v += s
+  }
+  elif ($p_d_a == pr)
+  {
+    v =+ p
+  }
+
+  print "p/d   :" $v
+
+  if ($p_d_t_a == as)
+  {
+    file{t}: v = x
+  }
+  elif ($p_d_t_a == ap)
+  {
+    file{t}: v += s
+  }
+  elif ($p_d_t_a == pr)
+  {
+    file{t}: v =+ p
+  }
+
+  print "p/d/t :" $(file{t}: v)
+}
+
+./:
diff --git a/tests/variable/override/simple b/tests/variable/override/simple
new file mode 100644
index 0000000..899daa2
--- /dev/null
+++ b/tests/variable/override/simple
@@ -0,0 +1,3 @@
+print $foo
+
+./:
diff --git a/tests/variable/override/test.sh b/tests/variable/override/test.sh
new file mode 100755
index 0000000..a195766
--- /dev/null
+++ b/tests/variable/override/test.sh
@@ -0,0 +1,240 @@
+#! /usr/bin/env bash
+
+verbose=n
+
+function error () { echo "$*" 1>&2; exit 1; }
+
+function fail ()
+{
+  if [ "$verbose" = "y" ]; then
+    b $*
+  else
+    b -q $* 2>/dev/null
+  fi
+
+  if [ $? -eq 0 ]; then
+    error "succeeded: b $*"
+  fi
+
+  return 0
+}
+
+function test ()
+{
+  # There is no way to get the exit code in process substitution
+  # so ruin the output.
+  #
+  diff -u - <(b -q $* || echo "<invalid output>")
+
+  if [ $? -ne 0 ]; then
+    error "failed: b $*"
+  fi
+}
+
+fail foo=bar[]             # error: unexpected [ in variable assignment 'foo=bar[]'
+fail foo=[string]bar       # error: typed override of variable foo
+fail "!foo=bar" "!foo=BAR" # error: multiple global overrides of variable foo
+fail "foo=bar" "foo=BAR"   # error: multiple project overrides of variable foo
+fail "%foo=bar" "%foo=BAR" # error: multiple project overrides of variable foo
+
+test --buildfile simple foo=bar ./ ./ <<< "bar"  # Multiple bootstraps of the same project.
+
+# Visibility.
+#
+test !v=X <<EOF
+/     : X
+.     : X
+d     : X
+d/t   : X
+p     : X
+p/d   : X
+p/d/t : X
+EOF
+
+test v=X <<EOF
+/     :
+.     : X
+d     : X
+d/t   : X
+p     : X
+p/d   : X
+p/d/t : X
+EOF
+
+test v=X p_a=assing <<EOF
+/     :
+.     : X
+d     : X
+d/t   : X
+p     : X
+p/d   : X
+p/d/t : X
+EOF
+
+test %v=X <<EOF
+/     :
+.     : X
+d     : X
+d/t   : X
+p     : X
+p/d   : X
+p/d/t : X
+EOF
+
+test %v=X p_a=as <<EOF
+/     :
+.     : X
+d     : X
+d/t   : X
+p     : x
+p/d   : x
+p/d/t : x
+EOF
+
+test %v+=S %v=+P a=as <<EOF
+/     :
+.     : P x S
+d     : P x S
+d/t   : P x S
+p     : P x S
+p/d   : P x S
+p/d/t : P x S
+EOF
+
+test %v+=S %v=+P a=as p_a=as <<EOF
+/     :
+.     : P x S
+d     : P x S
+d/t   : P x S
+p     : x
+p/d   : x
+p/d/t : x
+EOF
+
+# Append/Prepend in override.
+#
+test v+=S <<EOF
+/     :
+.     : S
+d     : S
+d/t   : S
+p     : S
+p/d   : S
+p/d/t : S
+EOF
+
+test v+=S a=as <<EOF
+/     :
+.     : x S
+d     : x S
+d/t   : x S
+p     : x S
+p/d   : x S
+p/d/t : x S
+EOF
+
+test %v=+P a=as p_a=as <<EOF
+/     :
+.     : P x
+d     : P x
+d/t   : P x
+p     : x
+p/d   : x
+p/d/t : x
+EOF
+
+test %v+=S v=+P a=as p_a=as <<EOF
+/     :
+.     : P x S
+d     : P x S
+d/t   : P x S
+p     : P x
+p/d   : P x
+p/d/t : P x
+EOF
+
+# Append/Prepend in both.
+#
+test v=X a=ap d_a=ap p_a=ap p_d_a=ap <<EOF
+/     :
+.     : X
+d     : X
+d/t   : X
+p     : X
+p/d   : X
+p/d/t : X
+EOF
+
+test v+=S v=+P a=as d_a=ap d_t_a=ap p_a=ap p_d_a=ap p_d_t_a=ap <<EOF
+/     :
+.     : P x S
+d     : P x s S
+d/t   : P x s s S
+p     : P x s S
+p/d   : P x s s S
+p/d/t : P x s s s S
+EOF
+
+# These ones are surprising. I guess the moral is we shouldn't do "blind"
+# cross-project append/prepend.
+#
+test %v=X a=as d_a=ap p_a=ap p_d_a=ap <<EOF
+/     :
+.     : X
+d     : X
+d/t   : X
+p     : x s
+p/d   : x s s
+p/d/t : x s s
+EOF
+
+test %v+=S a=as d_a=ap p_a=ap p_d_a=ap <<EOF
+/     :
+.     : x S
+d     : x s S
+d/t   : x s S
+p     : x s
+p/d   : x s s
+p/d/t : x s s
+EOF
+
+test %v+=S a=as d_a=ap p_a=ap p_d_a=ap ./ p/ <<EOF
+/     :
+.     : x S
+d     : x s S
+d/t   : x s S
+p     : x s S
+p/d   : x s s S
+p/d/t : x s s S
+EOF
+
+# Typed override.
+#
+test v+=S v=+P t=string <<EOF
+/     :
+.     : PS
+d     : PS
+d/t   : PS
+p     : PS
+p/d   : PS
+p/d/t : PS
+EOF
+
+test v+=S v=+P t=string a=as d_a=ap d_t_a=ap p_a=ap p_d_a=ap p_d_t_a=ap <<EOF
+/     :
+.     : PxS
+d     : PxsS
+d/t   : PxssS
+p     : PxsS
+p/d   : PxssS
+p/d/t : PxsssS
+EOF
+
+# Cache overwrite.
+#
+test --buildfile cache x+=01 y+=01 <<EOF
+001
+2
+0 01
+1
+EOF