On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
WARNING transform_feedback.array.interleaved.triangles.lowp_float: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.mediump_float: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.highp_float: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.lowp_vec2: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.mediump_vec2: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.highp_vec2: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.lowp_vec3: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.mediump_vec3: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.highp_vec3: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.lowp_vec4: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.mediump_vec4: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.highp_vec4: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.lowp_mat2: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.mediump_mat2: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.highp_mat2: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.lowp_mat2x3: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.mediump_mat2x3: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.highp_mat2x3: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.lowp_mat2x4: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.mediump_mat2x4: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.highp_mat2x4: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.lowp_mat3x2: Capturing arrays is not supported (undefined in specification) WARNING transform_feedback.array.interleaved.triangles.mediump_mat3x2: Capturing arrays is not supported (undefined in specification)