test/interface: document tests
Most already had comments (yay); adjusted for consistency.
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5676102
diff --git a/test/interface/bigdata.go b/test/interface/bigdata.go
index 0d8c408..0f2e9a9 100644
--- a/test/interface/bigdata.go
+++ b/test/interface/bigdata.go
@@ -4,8 +4,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// check that big vs small, pointer vs not
-// interface methods work.
+// Test big vs. small, pointer vs. value interface methods.
package main
diff --git a/test/interface/convert.go b/test/interface/convert.go
index 2b4f45d..eb6fd1d 100644
--- a/test/interface/convert.go
+++ b/test/interface/convert.go
@@ -4,8 +4,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// Check uses of all the different interface
-// conversion runtime functions.
+// Test all the different interface conversion runtime functions.
package main
diff --git a/test/interface/convert1.go b/test/interface/convert1.go
index 4833e84..4a3ec8a 100644
--- a/test/interface/convert1.go
+++ b/test/interface/convert1.go
@@ -4,8 +4,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// Check that static interface conversion of
-// interface value nil succeeds.
+// Test static interface conversion of interface value nil.
package main
diff --git a/test/interface/convert2.go b/test/interface/convert2.go
index 4833e84..4a3ec8a 100644
--- a/test/interface/convert2.go
+++ b/test/interface/convert2.go
@@ -4,8 +4,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// Check that static interface conversion of
-// interface value nil succeeds.
+// Test static interface conversion of interface value nil.
package main
diff --git a/test/interface/embed.go b/test/interface/embed.go
index 46c02cc..5c52ac0 100644
--- a/test/interface/embed.go
+++ b/test/interface/embed.go
@@ -4,7 +4,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// Check methods derived from embedded interface values.
+// Test methods derived from embedded interface values.
package main
diff --git a/test/interface/embed0.go b/test/interface/embed0.go
index bbd81e7..dee8319 100644
--- a/test/interface/embed0.go
+++ b/test/interface/embed0.go
@@ -4,7 +4,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// Check that embedded interface types can have local methods.
+// Test that embedded interface types can have local methods.
package p
diff --git a/test/interface/embed1.go b/test/interface/embed1.go
index 24e5047..ee502a1 100644
--- a/test/interface/embed1.go
+++ b/test/interface/embed1.go
@@ -4,7 +4,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// Check that embedded interface types can have local methods.
+// Test that embedded interface types can have local methods.
package main
diff --git a/test/interface/embed2.go b/test/interface/embed2.go
index bac2143..1636db78 100644
--- a/test/interface/embed2.go
+++ b/test/interface/embed2.go
@@ -4,7 +4,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// Check methods derived from embedded interface and *interface values.
+// Test methods derived from embedded interface and *interface values.
package main
diff --git a/test/interface/explicit.go b/test/interface/explicit.go
index fbe65e7..d19480a 100644
--- a/test/interface/explicit.go
+++ b/test/interface/explicit.go
@@ -4,7 +4,8 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// Static error messages about interface conversions.
+// Verify compiler messages about erroneous static interface conversions.
+// Does not compile.
package main
diff --git a/test/interface/fail.go b/test/interface/fail.go
index 5a2f57f..72b854d 100644
--- a/test/interface/fail.go
+++ b/test/interface/fail.go
@@ -4,7 +4,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// Check that interface conversion fails when method is missing.
+// Test that interface conversion fails when method is missing.
package main
diff --git a/test/interface/fake.go b/test/interface/fake.go
index 55650cc..861a640 100644
--- a/test/interface/fake.go
+++ b/test/interface/fake.go
@@ -4,7 +4,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// Interface comparisons using types hidden
+// Test interface comparisons using types hidden
// inside reflected-on structs.
package main
diff --git a/test/interface/noeq.go b/test/interface/noeq.go
index b89fd0e..1c5166e 100644
--- a/test/interface/noeq.go
+++ b/test/interface/noeq.go
@@ -4,7 +4,8 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// Interface values containing types that cannot be compared for equality.
+// Test run-time error detection for interface values containing types
+// that cannot be compared for equality.
package main
diff --git a/test/interface/pointer.go b/test/interface/pointer.go
index 0548c24..2927050 100644
--- a/test/interface/pointer.go
+++ b/test/interface/pointer.go
@@ -4,7 +4,8 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// Check that interface{M()} = *interface{M()} produces a compiler error.
+// Test that interface{M()} = *interface{M()} produces a compiler error.
+// Does not compile.
package main
diff --git a/test/interface/private.go b/test/interface/private.go
index 37890c9..14dfc1a 100644
--- a/test/interface/private.go
+++ b/test/interface/private.go
@@ -4,6 +4,9 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
+// Test that unexported methods are not visible outside the package.
+// Does not compile.
+
package main
import "./private1"
diff --git a/test/interface/private1.go b/test/interface/private1.go
index 3173fbe..9c831a2 100644
--- a/test/interface/private1.go
+++ b/test/interface/private1.go
@@ -4,6 +4,8 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
+// Imported by private.go, which should not be able to see the private method.
+
package p
type Exported interface {
diff --git a/test/interface/receiver.go b/test/interface/receiver.go
index dc2e780..4511ab3 100644
--- a/test/interface/receiver.go
+++ b/test/interface/receiver.go
@@ -4,8 +4,8 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// Implicit methods for embedded types.
-// Mixed pointer and non-pointer receivers.
+// Test Implicit methods for embedded types and
+// mixed pointer and non-pointer receivers.
package main
diff --git a/test/interface/receiver1.go b/test/interface/receiver1.go
index 19ca6d4..2b7ccdc 100644
--- a/test/interface/receiver1.go
+++ b/test/interface/receiver1.go
@@ -4,7 +4,8 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// Error messages about missing implicit methods.
+// Verify compiler complains about missing implicit methods.
+// Does not compile.
package main
diff --git a/test/interface/recursive1.go b/test/interface/recursive1.go
index 2c93a28..524dda8 100644
--- a/test/interface/recursive1.go
+++ b/test/interface/recursive1.go
@@ -4,6 +4,8 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
+// Mutually recursive type definitions imported and used by recursive1.go.
+
package p
type I1 interface {
diff --git a/test/interface/recursive2.go b/test/interface/recursive2.go
index a7f9ab5..5129ceb 100644
--- a/test/interface/recursive2.go
+++ b/test/interface/recursive2.go
@@ -4,7 +4,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// Check that the mutually recursive types in recursive1.go made it
+// Test that the mutually recursive types in recursive1.go made it
// intact and with the same meaning, by assigning to or using them.
package main
diff --git a/test/interface/returntype.go b/test/interface/returntype.go
index b7bebe4..4d86f39 100644
--- a/test/interface/returntype.go
+++ b/test/interface/returntype.go
@@ -4,7 +4,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// Check methods with different return types.
+// Test interface methods with different return types are distinct.
package main
diff --git a/test/interface/struct.go b/test/interface/struct.go
index 3c9d01d..f60819c 100644
--- a/test/interface/struct.go
+++ b/test/interface/struct.go
@@ -4,7 +4,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// Interface values containing structures.
+// Test interface values containing structures.
package main
