; Test incorrect syntax for -D option is correctly diagnosed.

; Missing equal sign.
RUN: %ProtectFileCheckOutput not FileCheck -DVALUE10 --input-file %s %s 2>&1 \
RUN:   | FileCheck %s --check-prefix ERRCLIEQ1

ERRCLIEQ1: Missing equal sign in command-line definition '-DVALUE10'

; Missing definition expression (variable name, equal sign and value).
RUN: %ProtectFileCheckOutput not FileCheck -D --input-file %s %s 2>&1 \
RUN:   | FileCheck %s --check-prefix ERRCLIEQ2

ERRCLIEQ2: {{F|f}}ile{{C|c}}heck{{[^:]*}}: for the -D option: requires a value!

; Missing variable name.
RUN: %ProtectFileCheckOutput not FileCheck -D=10 --input-file %s %s 2>&1 \
RUN:   | FileCheck %s --check-prefix ERRCLIVAR1

ERRCLIVAR1: Missing variable name in command-line definition '-D=10'

; Missing variable name.
RUN: %ProtectFileCheckOutput not FileCheck -D= --input-file %s %s 2>&1 \
RUN:   | FileCheck %s --check-prefix ERRCLIVAR2

ERRCLIVAR2: Missing variable name in command-line definition '-D='

; Invalid variable name: starts with a digit.
RUN: %ProtectFileCheckOutput \
RUN: not FileCheck -D10VALUE=10 --input-file %s %s 2>&1 \
RUN:   | FileCheck %s --strict-whitespace --match-full-lines --check-prefix ERRCLIFMT

ERRCLIFMT:Global defines:1:19: error: invalid variable name
ERRCLIFMT-NEXT:Global define #1: 10VALUE=10
ERRCLIFMT-NEXT:                  ^

; Invalid definition of pseudo variable.
RUN: %ProtectFileCheckOutput \
RUN: not FileCheck -D@VALUE=10 --input-file %s %s 2>&1 \
RUN:   | FileCheck %s --strict-whitespace --match-full-lines --check-prefix ERRCLIPSEUDO

ERRCLIPSEUDO:Global defines:1:19: error: invalid name in string variable definition '@VALUE'
ERRCLIPSEUDO-NEXT:Global define #1: @VALUE=10
ERRCLIPSEUDO-NEXT:                  ^

; Invalid definition of an expression.
RUN: %ProtectFileCheckOutput \
RUN: not FileCheck -D'VALUE + 2=10' --input-file %s %s 2>&1 \
RUN:   | FileCheck %s --strict-whitespace --check-prefix ERRCLITRAIL

ERRCLITRAIL:Global defines:1:19: error: invalid name in string variable definition 'VALUE + 2'
ERRCLITRAIL-NEXT:Global define #1: VALUE + 2=10
ERRCLITRAIL-NEXT:                  ^