diff --git a/tests/lib/cbprintf_fp/testcase.yaml b/tests/lib/cbprintf_fp/testcase.yaml
index 1d8585c53b5..6cc638b5060 100644
--- a/tests/lib/cbprintf_fp/testcase.yaml
+++ b/tests/lib/cbprintf_fp/testcase.yaml
@@ -7,7 +7,7 @@ common:
     - qemu_x86_64
   filter: CONFIG_CONSOLE_HAS_DRIVER
 tests:
-  libraries.cbprintf_fp.printk:
+  libraries.cbprintf.fp.printk:
     extra_configs:
       - CONFIG_APP_FORMATTER_PRINTK=y
     harness_config:
@@ -16,7 +16,7 @@ tests:
       regex:
         - "Hello with printk"
         - "Complete"
-  libraries.cbprintf_fp.printf:
+  libraries.cbprintf.fp.printf:
     extra_configs:
       - CONFIG_APP_FORMATTER_PRINTF=y
     harness_config:
@@ -25,7 +25,7 @@ tests:
       regex:
         - "Hello with printf"
         - "Complete"
-  libraries.cbprintf_fp.printf_nl:
+  libraries.cbprintf.fp.printf_nl:
     filter: TOOLCHAIN_HAS_NEWLIB == 1
     extra_configs:
       - CONFIG_APP_FORMATTER_PRINTF=y
@@ -36,7 +36,7 @@ tests:
       regex:
         - "Hello with printf/newlib"
         - "Complete"
-  libraries.cbprintf_fp.printfcb:
+  libraries.cbprintf.fp.printfcb:
     extra_configs:
       - CONFIG_APP_FORMATTER_PRINTFCB=y
     harness_config:
@@ -45,7 +45,7 @@ tests:
       regex:
         - "Hello with printfcb"
         - "Complete"
-  libraries.cbprintf_fp.printfcb_nl:
+  libraries.cbprintf.fp.printfcb_nl:
     filter: TOOLCHAIN_HAS_NEWLIB == 1
     extra_configs:
       - CONFIG_APP_FORMATTER_PRINTFCB=y
@@ -56,7 +56,7 @@ tests:
       regex:
         - "Hello with printfcb/newlib"
         - "Complete"
-  libraries.cbprintf_fp.fprintf:
+  libraries.cbprintf.fp.fprintf:
     extra_configs:
       - CONFIG_APP_FORMATTER_FPRINTF=y
     harness_config:
@@ -65,7 +65,7 @@ tests:
       regex:
         - "Hello with fprintf"
         - "Complete"
-  libraries.cbprintf_fp.fprintfcb:
+  libraries.cbprintf.fp.fprintfcb:
     extra_configs:
       - CONFIG_APP_FORMATTER_FPRINTFCB=y
     harness_config:
@@ -74,7 +74,7 @@ tests:
       regex:
         - "Hello with fprintfcb"
         - "Complete"
-  libraries.cbprintf_fp.printf.picolibc:
+  libraries.cbprintf.fp.printf.picolibc:
     filter: CONFIG_PICOLIBC_SUPPORTED
     tags: picolibc
     extra_configs:
@@ -86,7 +86,7 @@ tests:
       regex:
         - "Hello with printf"
         - "Complete"
-  libraries.cbprintf_fp.printfcb.picolibc:
+  libraries.cbprintf.fp.printfcb.picolibc:
     filter: CONFIG_PICOLIBC_SUPPORTED
     tags: picolibc
     extra_configs:
diff --git a/tests/lib/cbprintf_package/testcase.yaml b/tests/lib/cbprintf_package/testcase.yaml
index 61654bc1187..61545936181 100644
--- a/tests/lib/cbprintf_package/testcase.yaml
+++ b/tests/lib/cbprintf_package/testcase.yaml
@@ -5,20 +5,20 @@ common:
   tags: cbprintf
   min_flash: 48
 tests:
-  libraries.cbprintf_package:
+  libraries.cbprintf.package:
     extra_configs:
       - CONFIG_CBPRINTF_COMPLETE=y
     integration_platforms:
       - native_posix
 
-  libraries.cbprintf_package_no_generic:
+  libraries.cbprintf.package_no_generic:
     extra_configs:
       - CONFIG_CBPRINTF_COMPLETE=y
       - CONFIG_COMPILER_OPT="-DZ_C_GENERIC=0"
     integration_platforms:
       - native_posix
 
-  libraries.cbprintf_package_fp:
+  libraries.cbprintf.package_fp:
     filter: CONFIG_CPU_HAS_FPU
     extra_configs:
       - CONFIG_CBPRINTF_FP_SUPPORT=y
@@ -27,7 +27,7 @@ tests:
     integration_platforms:
       - native_posix
 
-  libraries.cbprintf_package_fp_align_offset:
+  libraries.cbprintf.package_fp_align_offset:
     filter: CONFIG_CPU_HAS_FPU
     extra_configs:
       - CONFIG_CBPRINTF_FP_SUPPORT=y
@@ -37,7 +37,7 @@ tests:
     integration_platforms:
       - native_posix
 
-  libraries.cbprintf_package_long_double:
+  libraries.cbprintf.package_long_double:
     filter: CONFIG_CPU_HAS_FPU
     extra_configs:
       - CONFIG_CBPRINTF_FP_SUPPORT=y
@@ -48,7 +48,7 @@ tests:
     integration_platforms:
       - native_posix
 
-  libraries.cbprintf_package_long_double_align_offset:
+  libraries.cbprintf.package_long_double_align_offset:
     filter: CONFIG_CPU_HAS_FPU
     extra_configs:
       - CONFIG_CBPRINTF_FP_SUPPORT=y
@@ -60,21 +60,21 @@ tests:
     integration_platforms:
       - native_posix
 
-  libraries.cbprintf_package_nano:
+  libraries.cbprintf.package_nano:
     extra_configs:
       - CONFIG_CBPRINTF_NANO=y
     integration_platforms:
       - native_posix
 
   # Same test but with test compiled as C++
-  libraries.cbprintf_package_cpp:
+  libraries.cbprintf.package_cpp:
     extra_configs:
       - CONFIG_CPP=y
       - CONFIG_CBPRINTF_COMPLETE=y
     integration_platforms:
       - native_posix
 
-  libraries.cbprintf_package_no_generic_cpp:
+  libraries.cbprintf.package_no_generic_cpp:
     extra_configs:
       - CONFIG_CPP=y
       - CONFIG_CBPRINTF_COMPLETE=y
@@ -82,7 +82,7 @@ tests:
     integration_platforms:
       - native_posix
 
-  libraries.cbprintf_package_fp_cpp:
+  libraries.cbprintf.package_fp_cpp:
     filter: CONFIG_CPU_HAS_FPU
     extra_configs:
       - CONFIG_CPP=y
@@ -92,7 +92,7 @@ tests:
     integration_platforms:
       - native_posix
 
-  libraries.cbprintf_package_fp_align_offset_cpp:
+  libraries.cbprintf.package_fp_align_offset_cpp:
     filter: CONFIG_CPU_HAS_FPU
     extra_configs:
       - CONFIG_CPP=y
@@ -103,7 +103,7 @@ tests:
     integration_platforms:
       - native_posix
 
-  libraries.cbprintf_package_long_double_cpp:
+  libraries.cbprintf.package_long_double_cpp:
     filter: CONFIG_CPU_HAS_FPU
     extra_configs:
       - CONFIG_CPP=y
@@ -115,7 +115,7 @@ tests:
     integration_platforms:
       - native_posix
 
-  libraries.cbprintf_package_long_double_align_offset_cpp:
+  libraries.cbprintf.package_long_double_align_offset_cpp:
     filter: CONFIG_CPU_HAS_FPU
     extra_configs:
       - CONFIG_CPP=y
@@ -128,14 +128,14 @@ tests:
     integration_platforms:
       - native_posix
 
-  libraries.cbprintf_package_nano_cpp:
+  libraries.cbprintf.package_nano_cpp:
     extra_configs:
       - CONFIG_CPP=y
       - CONFIG_CBPRINTF_NANO=y
     integration_platforms:
       - native_posix
 
-  libraries.cbprintf_package.picolibc:
+  libraries.cbprintf.package.picolibc:
     filter: CONFIG_PICOLIBC_SUPPORTED
     tags: picolibc
     extra_configs:
@@ -144,7 +144,7 @@ tests:
     integration_platforms:
       - qemu_x86
 
-  libraries.cbprintf_package_no_generic.picolibc:
+  libraries.cbprintf.package_no_generic.picolibc:
     filter: CONFIG_PICOLIBC_SUPPORTED
     tags: picolibc
     extra_configs:
@@ -154,7 +154,7 @@ tests:
     integration_platforms:
       - qemu_x86
 
-  libraries.cbprintf_package_fp.picolibc:
+  libraries.cbprintf.package_fp.picolibc:
     filter: CONFIG_CPU_HAS_FPU and CONFIG_PICOLIBC_SUPPORTED
     tags: picolibc
     extra_configs:
@@ -166,7 +166,7 @@ tests:
       - qemu_x86
 
   # Same test but with test compiled as C++
-  libraries.cbprintf_package_cpp.picolibc:
+  libraries.cbprintf.package_cpp.picolibc:
     filter: CONFIG_PICOLIBC_SUPPORTED
     tags: picolibc
     extra_configs:
@@ -176,7 +176,7 @@ tests:
     integration_platforms:
       - qemu_x86
 
-  libraries.cbprintf_package_no_generic_cpp.picolibc:
+  libraries.cbprintf.package_no_generic_cpp.picolibc:
     filter: CONFIG_PICOLIBC_SUPPORTED
     tags: picolibc
     extra_configs:
@@ -187,7 +187,7 @@ tests:
     integration_platforms:
       - qemu_x86
 
-  libraries.cbprintf_package_fp_cpp.picolibc:
+  libraries.cbprintf.package_fp_cpp.picolibc:
     filter: CONFIG_CPU_HAS_FPU and CONFIG_PICOLIBC_SUPPORTED
     tags: picolibc
     extra_configs: