ensemble: Add a simple ensemble command

Uses a prefix to automatically map from subcommand to
implementation.

Includes support for namespace ensemble

Signed-off-by: Steve Bennett <steveb@workware.net.au>

2 files changed, 122 insertions, 0 deletions

diff --git a/tests/ensemble.test b/tests/ensemble.test
new file mode 100644
index 0000000..507cd20
--- /dev/null
+++ b/tests/ensemble.test
@@ -0,0 +1,47 @@
+source [file dirname [info script]]/testing.tcl
+
+needs constraint jim
+needs package ensemble
+
+# Let's create some procs for our ensembles
+
+proc {foo a} {x} {
+	incr x
+}
+proc {foo b} {y} {
+	incr y 2
+}
+test ensemble-1.1 {Basic ensemble} {
+	ensemble foo
+	foo a 5
+} 6
+
+test ensemble-1.2 {ensemble -commands} {
+	foo -commands
+} {a b}
+
+test ensemble-1.3 {ensemble -help} {
+	foo -help
+} {Usage: "foo command ... ", where command is one of: a, b}
+
+test ensemble-1.4 {ensemble with invalid subcommand} -body {
+	foo c x
+} -returnCodes error -result {invalid command name "foo c"}
+
+test ensemble-1.5 {ensemble add new commands} {
+	proc {foo c} {z} {
+		append z @
+	}
+	foo c x
+} {x@}
+
+test ensemble-1.6 {ensemble remove mapping} -body {
+	rename {foo a} ""
+	foo a 4
+} -returnCodes error -result {invalid command name "foo a"}
+
+test ensemble-1.7 {ensemble updated -commands} {
+	foo -commands
+} {b c}
+
+testreport
diff --git a/tests/nsensemble.test b/tests/nsensemble.test
new file mode 100644
index 0000000..9306167
--- /dev/null
+++ b/tests/nsensemble.test
@@ -0,0 +1,75 @@
+source [file dirname [info script]]/testing.tcl
+
+needs constraint jim
+needs cmd ensemble
+needs cmd namespace
+testConstraint package-ensemble [expr {"ensemble" in [package list]}]
+
+# Let's create some procs for our ensemble
+namespace eval foo {
+	proc a {x} {
+		incr x
+	}
+	proc b {y} {
+		incr y 2
+	}
+	proc c {z} {
+		append z @
+	}
+}
+
+test nsensemble-1.0 {Create ensemble outside namespace} -body {
+	# Create an ensemble for our namespace
+	namespace ensemble create
+} -returnCodes error -result {namespace ensemble create: must be called within a namespace}
+
+test nsensemble-1.1 {Basic namespace ensemble} {
+	# Create an ensemble for our namespace
+	namespace eval foo {
+		namespace ensemble create
+	}
+	# And invoke a method
+	foo a 5
+} 6
+
+test nsensemble-1.2 {namespace ensemble -commands} package-ensemble {
+	foo -commands
+} {a b c}
+
+test nsensemble-1.3 {namespace ensemble -help} package-ensemble {
+	foo -help
+} {Usage: "foo command ... ", where command is one of: a, b, c}
+
+test nsensemble-1.4 {namespace ensemble with invalid subcommand} -constraints package-ensemble -body {
+	foo d x
+} -returnCodes error -result {invalid command name "foo::d"}
+
+# Now a nested namespace ensemble
+namespace eval foo {
+	namespace eval bar {
+		proc a {x} {
+			incr x 10
+		}
+		proc b {y} {
+			incr y 20
+		}
+		proc c {z} {
+			append z %
+		}
+		namespace ensemble create
+	}
+}
+
+test nsensemble-2.1 {Nested namespace ensemble} {
+	# And invoke a method
+	foo::bar a 5
+} 15
+
+test nsensemble-2.2 {Nested namespace ensemble from namespace} {
+	# And invoke a method
+	namespace eval foo {
+		bar a 6
+	}
+} 16
+
+testreport