Test assumed GL_INVALID_VALUE in case glTransformFeedbackVaryings was
given non-existing program. However there is also existing rule that
specifies that INVALID_OPERATION should be returned in case object given
is not of expected type (shader vs program case).

This matches the error expectation of following dEQP test:
   
dEQP-GLES31.functional.debug.negative_coverage.get_error.shader.transform_feedback_varyings

Signed-off-by: Tapani Pälli <[email protected]>
---
 .../set_varyings_with_invalid_args.c               | 34 ++++++++++++++++++----
 1 file changed, 29 insertions(+), 5 deletions(-)

diff --git 
a/tests/spec/arb_transform_feedback3/set_varyings_with_invalid_args.c 
b/tests/spec/arb_transform_feedback3/set_varyings_with_invalid_args.c
index 562477f..a353a7c 100644
--- a/tests/spec/arb_transform_feedback3/set_varyings_with_invalid_args.c
+++ b/tests/spec/arb_transform_feedback3/set_varyings_with_invalid_args.c
@@ -34,6 +34,14 @@
  *  <program> is not the name of a program object, or if <bufferMode> is
  *  SEPARATE_ATTRIBS and <count> is greater than the limit
  *  MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS."
+ *
+ * Additionally accept following common rule with shader object API, specified
+ * by the 'Shader Objects' section of OpenGL spec:
+ *
+ * "Commands that accept shader or program object names will generate the error
+ * INVALID VALUE if the provided name is not the name of either a shader or 
pro-
+ * gram object and INVALID OPERATION if the provided name identifies an object
+ * that is not the expected type."
  */
 
 PIGLIT_GL_TEST_CONFIG_BEGIN
@@ -80,7 +88,7 @@ try_max_varyings(GLuint prog, unsigned n)
 void
 piglit_init(int argc, char **argv)
 {
-       GLuint prog;
+       GLuint vs, gs, prog;
        GLint max_attrib_n;
 
        piglit_require_extension("GL_ARB_transform_feedback3");
@@ -92,16 +100,32 @@ piglit_init(int argc, char **argv)
                piglit_report_result(PIGLIT_FAIL);
        }
 
-       prog = piglit_build_simple_program_multiple_shaders(
-                       GL_VERTEX_SHADER, vs_pass_thru_text,
-                       GL_GEOMETRY_SHADER, gs_simple_text, 0);
+       vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_pass_thru_text);
+       gs = piglit_compile_shader_text(GL_GEOMETRY_SHADER, gs_simple_text);
+
+       if (!vs || !gs)
+               piglit_report_result(PIGLIT_FAIL);
+
+       prog = glCreateProgram();
+       glAttachShader(prog, vs);
+       glAttachShader(prog, gs);
+       glLinkProgram(prog);
+
+       if(!piglit_link_check_status(prog))
+               piglit_report_result(PIGLIT_FAIL);
 
        /* Try invalid program */
-       glTransformFeedbackVaryings(prog + 1, ARRAY_SIZE(varyings), varyings,
+       glTransformFeedbackVaryings(42, ARRAY_SIZE(varyings), varyings,
                                GL_INTERLEAVED_ATTRIBS);
        if (!piglit_check_gl_error(GL_INVALID_VALUE))
                piglit_report_result(PIGLIT_FAIL);
 
+       /* Try shader in place of program. */
+       glTransformFeedbackVaryings(vs, ARRAY_SIZE(varyings), varyings,
+                               GL_INTERLEAVED_ATTRIBS);
+       if (!piglit_check_gl_error(GL_INVALID_OPERATION))
+               piglit_report_result(PIGLIT_FAIL);
+
        /* Try too many attributes */
        try_max_varyings(prog, max_attrib_n + 1);
        if (!piglit_check_gl_error(GL_INVALID_VALUE))
-- 
2.7.4

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